/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.imaging;
import java.awt.Dimension;
import java.awt.color.ICC_Profile;
import java.awt.image.BufferedImage;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.imaging.common.IImageMetadata;
import org.apache.commons.imaging.common.bytesource.ByteSource;
import org.apache.commons.imaging.common.bytesource.ByteSourceArray;
import org.apache.commons.imaging.common.bytesource.ByteSourceFile;
import org.apache.commons.imaging.common.bytesource.ByteSourceInputStream;
import org.apache.commons.imaging.icc.IccProfileInfo;
import org.apache.commons.imaging.icc.IccProfileParser;
import org.apache.commons.imaging.util.Debug;
/**
* The primary application programming interface (API) to the Imaging library.
* <p>
* <h3>Application Notes</h3>
* <h4>Using this class</h4>
* Almost all of the Apache Commons Imaging library's core functionality can
* be accessed through the methods provided by this class.
* The use of the Imaging class is similar to the Java API's ImageIO class,
* though Imaging supports formats and options not included in the standard
* Java API.
* <p>All of methods provided by the Imaging class are declared static.
* <p>The Apache Commons Imaging package is a pure Java implementation.
* <h4>Format support</h4>
* While the Apache Commons Imaging package handles a number of different
* graphics formats, support for some formats is not yet complete.
* For the most recent information on support for specific formats, refer to
* <a href="http://commons.apache.org/imaging/formatsupport.html">Format Support</a>
* at the main project development web site.
* <h4>Optional parameters for image reading and writing</h4>
* Some of the methods provided by this class accept an optional
* <strong>params</strong> argument that permits the application to specify
* elements for special handling. If these specifications are not required by
* the application, the params argument may be omitted (as appropriate) or
* a null argument may be provided. In image-writing operations, the option
* parameters may include options such as data-compression type (if any),
* color model, or other format-specific data representations. The parameters
* map may also be used to provide EXIF Tags and other metadata to those
* formats that support them. In image-reading operations,
* the parameters may include information about special handling in reading
* the image data.
* <p>Optional parameters are specified using a Map object (typically,
* a Java HashMap) to specify a set of keys and values for input.
* The specification for support keys is provided by the ImagingConstants
* interface as well as by format-specific interfaces such as
* JpegContants or TiffConstants.
* <h4>Example code</h4>
* See the source of the SampleUsage class and other classes in the
* org.apache.commons.imaging.examples package for examples.
*
* @see <a
* href="https://svn.apache.org/repos/asf/commons/proper/imaging/trunk/src/test/java/org/apache/commons/imaging/examples/SampleUsage.java">org.apache.commons.imaging.examples.SampleUsage</a>
* @see <a href="http://commons.apache.org/imaging/formatsupport.html">Format Support</a>
*/
public abstract class Imaging implements ImagingConstants {
/**
* Attempts to determine if a file contains an image recorded in
* a supported graphics format based on its file-name extension
* (for example ".jpg", ".gif", ".png", etc.).
*
* @param file A valid File object providing a reference to
* a file that may contain an image.
* @return true if the file-name includes a supported image
* format file extension; otherwise, false.
*/
public static boolean hasImageFileExtension(final File file) {
if (file==null || !file.isFile()) {
return false;
}
return hasImageFileExtension(file.getName());
}
/**
* Attempts to determine if a file contains an image recorded in
* a supported graphics format based on its file-name extension
* (for example ".jpg", ".gif", ".png", etc.).
*
* @param filename A valid string representing name of file
* which may contain an image.
* @return true if the filename has an image format file extension.
*/
public static boolean hasImageFileExtension(String filename) {
if(filename==null) {
return false;
}
filename = filename.toLowerCase();
final ImageParser imageParsers[] = ImageParser.getAllImageParsers();
for (final ImageParser imageParser : imageParsers) {
final String exts[] = imageParser.getAcceptedExtensions();
for (final String ext : exts) {
if (filename.endsWith(ext.toLowerCase())) {
return true;
}
}
}
return false;
}
/**
* Attempts to determine the image format of a file based on its
* "magic numbers," the first bytes of the data.
* <p>Many graphics format specify identifying byte
* values that appear at the beginning of the data file. This method
* checks for such identifying elements and returns a ImageFormat
* enumeration indicating what it detects. Note that this
* method can return "false positives" in cases where non-image files
* begin with the specified byte values.
*
* @param bytes Byte array containing an image file.
* @return An ImageFormat, such as ImageFormat.IMAGE_FORMAT_JPEG. Returns
* ImageFormat.IMAGE_FORMAT_UNKNOWN if the image type cannot be
* determined.
*/
public static ImageFormat guessFormat(final byte bytes[])
throws ImageReadException, IOException {
return guessFormat(new ByteSourceArray(bytes));
}
/**
* Attempts to determine the image format of a file based on its
* "magic numbers," the first bytes of the data.
* <p>Many graphics formats specify identifying byte
* values that appear at the beginning of the data file. This method
* checks for such identifying elements and returns a ImageFormat
* enumeration indicating what it detects. Note that this
* method can return "false positives" in cases where non-image files
* begin with the specified byte values.
*
* @param file File containing image data.
* @return An ImageFormat, such as ImageFormat.IMAGE_FORMAT_JPEG. Returns
* ImageFormat.IMAGE_FORMAT_UNKNOWN if the image type cannot be
* determined.
*/
public static ImageFormat guessFormat(final File file) throws ImageReadException,
IOException {
return guessFormat(new ByteSourceFile(file));
}
private static final int[] MAGIC_NUMBERS_GIF = { 0x47, 0x49, };
private static final int[] MAGIC_NUMBERS_PNG = { 0x89, 0x50, };
private static final int[] MAGIC_NUMBERS_JPEG = { 0xff, 0xd8, };
private static final int[] MAGIC_NUMBERS_BMP = { 0x42, 0x4d, };
private static final int[] MAGIC_NUMBERS_TIFF_MOTOROLA = { 0x4D, 0x4D, };
private static final int[] MAGIC_NUMBERS_TIFF_INTEL = { 0x49, 0x49, };
private static final int[] MAGIC_NUMBERS_PAM = { 0x50, 0x37, };
private static final int[] MAGIC_NUMBERS_PSD = { 0x38, 0x42, };
private static final int[] MAGIC_NUMBERS_PBM_A = { 0x50, 0x31, };
private static final int[] MAGIC_NUMBERS_PBM_B = { 0x50, 0x34, };
private static final int[] MAGIC_NUMBERS_PGM_A = { 0x50, 0x32, };
private static final int[] MAGIC_NUMBERS_PGM_B = { 0x50, 0x35, };
private static final int[] MAGIC_NUMBERS_PPM_A = { 0x50, 0x33, };
private static final int[] MAGIC_NUMBERS_PPM_B = { 0x50, 0x36, };
private static final int[] MAGIC_NUMBERS_JBIG2_1 = { 0x97, 0x4A, };
private static final int[] MAGIC_NUMBERS_JBIG2_2 = { 0x42, 0x32, };
private static final int[] MAGIC_NUMBERS_ICNS = { 0x69, 0x63, };
private static final int[] MAGIC_NUMBERS_DCX = { 0xB1, 0x68, };
private static final int[] MAGIC_NUMBERS_RGBE = { 0x23, 0x3F, };
private static boolean compareBytePair(final int[] a, final int b[]) {
if (a.length != 2 && b.length != 2) {
throw new RuntimeException("Invalid Byte Pair.");
}
return (a[0] == b[0]) && (a[1] == b[1]);
}
/**
* Attempts to determine the image format of a file based on its
* "magic numbers," the first bytes of the data.
* <p>Many graphics formats specify identifying byte
* values that appear at the beginning of the data file. This method
* checks for such identifying elements and returns a ImageFormat
* enumeration indicating what it detects. Note that this
* method can return "false positives" in cases where non-image files
* begin with the specified byte values.
*
* @param byteSource a valid ByteSource object potentially supplying
* data for an image.
* @return An ImageFormat, such as ImageFormat.IMAGE_FORMAT_JPEG. Returns
* ImageFormat.IMAGE_FORMAT_UNKNOWN if the image type cannot be
* determined.
* @throws ImageReadException in the event of an unsuccessful
* attempt to read the image data
* @throws IOException in the event of an unrecoverable I/O condition.
*/
public static ImageFormat guessFormat(final ByteSource byteSource)
throws ImageReadException, IOException {
if (byteSource==null) {
return ImageFormat.IMAGE_FORMAT_UNKNOWN;
}
InputStream is = null;
try {
is = byteSource.getInputStream();
final int i1 = is.read();
final int i2 = is.read();
if ((i1 < 0) || (i2 < 0)) {
throw new ImageReadException(
"Couldn't read magic numbers to guess format.");
}
final int b1 = i1 & 0xff;
final int b2 = i2 & 0xff;
final int bytePair[] = { b1, b2, };
if (compareBytePair(MAGIC_NUMBERS_GIF, bytePair)) {
return ImageFormat.IMAGE_FORMAT_GIF;
}
// else if (b1 == 0x00 && b2 == 0x00) // too similar to TGA
// {
// return ImageFormat.IMAGE_FORMAT_ICO;
// }
else if (compareBytePair(MAGIC_NUMBERS_PNG, bytePair)) {
return ImageFormat.IMAGE_FORMAT_PNG;
} else if (compareBytePair(MAGIC_NUMBERS_JPEG, bytePair)) {
return ImageFormat.IMAGE_FORMAT_JPEG;
} else if (compareBytePair(MAGIC_NUMBERS_BMP, bytePair)) {
return ImageFormat.IMAGE_FORMAT_BMP;
} else if (compareBytePair(MAGIC_NUMBERS_TIFF_MOTOROLA, bytePair)) {
return ImageFormat.IMAGE_FORMAT_TIFF;
} else if (compareBytePair(MAGIC_NUMBERS_TIFF_INTEL, bytePair)) {
return ImageFormat.IMAGE_FORMAT_TIFF;
} else if (compareBytePair(MAGIC_NUMBERS_PSD, bytePair)) {
return ImageFormat.IMAGE_FORMAT_PSD;
} else if (compareBytePair(MAGIC_NUMBERS_PAM, bytePair)) {
return ImageFormat.IMAGE_FORMAT_PAM;
} else if (compareBytePair(MAGIC_NUMBERS_PBM_A, bytePair)) {
return ImageFormat.IMAGE_FORMAT_PBM;
} else if (compareBytePair(MAGIC_NUMBERS_PBM_B, bytePair)) {
return ImageFormat.IMAGE_FORMAT_PBM;
} else if (compareBytePair(MAGIC_NUMBERS_PGM_A, bytePair)) {
return ImageFormat.IMAGE_FORMAT_PGM;
} else if (compareBytePair(MAGIC_NUMBERS_PGM_B, bytePair)) {
return ImageFormat.IMAGE_FORMAT_PGM;
} else if (compareBytePair(MAGIC_NUMBERS_PPM_A, bytePair)) {
return ImageFormat.IMAGE_FORMAT_PPM;
} else if (compareBytePair(MAGIC_NUMBERS_PPM_B, bytePair)) {
return ImageFormat.IMAGE_FORMAT_PPM;
} else if (compareBytePair(MAGIC_NUMBERS_JBIG2_1, bytePair)) {
final int i3 = is.read();
final int i4 = is.read();
if ((i3 < 0) || (i4 < 0)) {
throw new ImageReadException(
"Couldn't read magic numbers to guess format.");
}
final int b3 = i3 & 0xff;
final int b4 = i4 & 0xff;
final int bytePair2[] = { b3, b4, };
if (compareBytePair(MAGIC_NUMBERS_JBIG2_2, bytePair2)) {
return ImageFormat.IMAGE_FORMAT_JBIG2;
}
} else if (compareBytePair(MAGIC_NUMBERS_ICNS, bytePair)) {
return ImageFormat.IMAGE_FORMAT_ICNS;
} else if (compareBytePair(MAGIC_NUMBERS_DCX, bytePair)) {
return ImageFormat.IMAGE_FORMAT_DCX;
} else if (compareBytePair(MAGIC_NUMBERS_RGBE, bytePair)) {
return ImageFormat.IMAGE_FORMAT_RGBE;
}
return ImageFormat.IMAGE_FORMAT_UNKNOWN;
} finally {
if (is != null) {
try {
is.close();
} catch (final IOException e) {
Debug.debug(e);
}
}
}
}
/**
* Extracts an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and
* TIFF images.
* <p>
*
* @param bytes
* Byte array containing an image file.
* @return An instance of ICC_Profile or null if the image contains no ICC
* profile.
*/
public static ICC_Profile getICCProfile(final byte bytes[])
throws ImageReadException, IOException {
return getICCProfile(bytes, null);
}
/**
* Extracts an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and
* TIFF images.
* <p>
*
* @param bytes
* Byte array containing an image file.
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return An instance of ICC_Profile or null if the image contains no ICC
* profile..
*/
public static ICC_Profile getICCProfile(final byte bytes[], final Map<String,Object> params)
throws ImageReadException, IOException {
return getICCProfile(new ByteSourceArray(bytes), params);
}
/**
* Extracts an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and
* TIFF images.
* <p>
*
* @param is
* InputStream from which to read image data.
* @param filename
* Filename associated with image data (optional).
* @return An instance of ICC_Profile or null if the image contains no ICC
* profile..
*/
public static ICC_Profile getICCProfile(final InputStream is, final String filename)
throws ImageReadException, IOException {
return getICCProfile(is, filename, null);
}
/**
* Extracts an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and
* TIFF images.
* <p>
*
* @param is
* InputStream from which to read image data.
* @param filename
* Filename associated with image data (optional).
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return An instance of ICC_Profile or null if the image contains no ICC
* profile..
*/
public static ICC_Profile getICCProfile(final InputStream is, final String filename,
final Map<String,Object> params) throws ImageReadException, IOException {
return getICCProfile(new ByteSourceInputStream(is, filename), params);
}
/**
* Extracts an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and
* TIFF images.
* <p>
*
* @param file
* File containing image data.
* @return An instance of ICC_Profile or null if the image contains no ICC
* profile..
*/
public static ICC_Profile getICCProfile(final File file)
throws ImageReadException, IOException {
return getICCProfile(file, null);
}
/**
* Extracts an ICC Profile (if present) from JPEG, PNG, PSD (Photoshop) and
* TIFF images.
* <p>
*
* @param file
* File containing image data.
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return An instance of ICC_Profile or null if the image contains no ICC
* profile..
*/
public static ICC_Profile getICCProfile(final File file, final Map<String,Object> params)
throws ImageReadException, IOException {
return getICCProfile(new ByteSourceFile(file), params);
}
protected static ICC_Profile getICCProfile(final ByteSource byteSource, final Map<String,Object> params)
throws ImageReadException, IOException {
final byte bytes[] = getICCProfileBytes(byteSource, params);
if (bytes == null) {
return null;
}
final IccProfileParser parser = new IccProfileParser();
final IccProfileInfo info = parser.getICCProfileInfo(bytes);
if (info == null) {
return null;
}
if (info.issRGB()) {
return null;
}
final ICC_Profile icc = ICC_Profile.getInstance(bytes);
return icc;
}
/**
* Extracts the raw bytes of an ICC Profile (if present) from JPEG, PNG, PSD
* (Photoshop) and TIFF images.
* <p>
* To parse the result use IccProfileParser or
* ICC_Profile.getInstance(bytes).
* <p>
*
* @param bytes
* Byte array containing an image file.
* @return A byte array.
* @see IccProfileParser
* @see ICC_Profile
*/
public static byte[] getICCProfileBytes(final byte bytes[])
throws ImageReadException, IOException {
return getICCProfileBytes(bytes, null);
}
/**
* Extracts the raw bytes of an ICC Profile (if present) from JPEG, PNG, PSD
* (Photoshop) and TIFF images.
* <p>
* To parse the result use IccProfileParser or
* ICC_Profile.getInstance(bytes).
* <p>
*
* @param bytes
* Byte array containing an image file.
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return A byte array.
* @see IccProfileParser
* @see ICC_Profile
*/
public static byte[] getICCProfileBytes(final byte bytes[], final Map<String,Object> params)
throws ImageReadException, IOException {
return getICCProfileBytes(new ByteSourceArray(bytes), params);
}
/**
* Extracts the raw bytes of an ICC Profile (if present) from JPEG, PNG, PSD
* (Photoshop) and TIFF images.
* <p>
* To parse the result use IccProfileParser or
* ICC_Profile.getInstance(bytes).
* <p>
*
* @param file
* File containing image data.
* @return A byte array.
* @see IccProfileParser
* @see ICC_Profile
*/
public static byte[] getICCProfileBytes(final File file)
throws ImageReadException, IOException {
return getICCProfileBytes(file, null);
}
/**
* Extracts the raw bytes of an ICC Profile (if present) from JPEG, PNG, PSD
* (Photoshop) and TIFF images.
* <p>
* To parse the result use IccProfileParser or
* ICC_Profile.getInstance(bytes).
* <p>
*
* @param file
* File containing image data.
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return A byte array.
* @see IccProfileParser
* @see ICC_Profile
*/
public static byte[] getICCProfileBytes(final File file, final Map<String,Object> params)
throws ImageReadException, IOException {
return getICCProfileBytes(new ByteSourceFile(file), params);
}
private static byte[] getICCProfileBytes(final ByteSource byteSource, final Map<String,Object> params)
throws ImageReadException, IOException {
final ImageParser imageParser = getImageParser(byteSource);
return imageParser.getICCProfileBytes(byteSource, params);
}
/**
* Parses the "image info" of an image.
* <p>
* "Image info" is a summary of basic information about the image such as:
* width, height, file format, bit depth, color type, etc.
* <p>
* Not to be confused with "image metadata."
* <p>
*
* @param filename
* String.
* @param bytes
* Byte array containing an image file.
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return An instance of ImageInfo.
* @see ImageInfo
*/
public static ImageInfo getImageInfo(final String filename, final byte bytes[],
final Map<String,Object> params) throws ImageReadException, IOException {
return getImageInfo(new ByteSourceArray(filename, bytes), params);
}
/**
* Parses the "image info" of an image.
* <p>
* "Image info" is a summary of basic information about the image such as:
* width, height, file format, bit depth, color type, etc.
* <p>
* Not to be confused with "image metadata."
* <p>
*
* @param filename
* String.
* @param bytes
* Byte array containing an image file.
* @return An instance of ImageInfo.
* @see ImageInfo
*/
public static ImageInfo getImageInfo(final String filename, final byte bytes[])
throws ImageReadException, IOException {
return getImageInfo(new ByteSourceArray(filename, bytes), null);
}
/**
* Parses the "image info" of an image.
* <p>
* "Image info" is a summary of basic information about the image such as:
* width, height, file format, bit depth, color type, etc.
* <p>
* Not to be confused with "image metadata."
* <p>
*
* @param is
* InputStream from which to read image data.
* @param filename
* Filename associated with image data (optional).
* @return An instance of ImageInfo.
* @see ImageInfo
*/
public static ImageInfo getImageInfo(final InputStream is, final String filename)
throws ImageReadException, IOException {
return getImageInfo(new ByteSourceInputStream(is, filename), null);
}
/**
* Parses the "image info" of an image.
* <p>
* "Image info" is a summary of basic information about the image such as:
* width, height, file format, bit depth, color type, etc.
* <p>
* Not to be confused with "image metadata."
* <p>
*
* @param is
* InputStream from which to read image data.
* @param filename
* Filename associated with image data (optional).
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return An instance of ImageInfo.
* @see ImageInfo
*/
public static ImageInfo getImageInfo(final InputStream is, final String filename,
final Map<String,Object> params) throws ImageReadException, IOException {
return getImageInfo(new ByteSourceInputStream(is, filename), params);
}
/**
* Parses the "image info" of an image.
* <p>
* "Image info" is a summary of basic information about the image such as:
* width, height, file format, bit depth, color type, etc.
* <p>
* Not to be confused with "image metadata."
* <p>
*
* @param bytes
* Byte array containing an image file.
* @return An instance of ImageInfo.
* @see ImageInfo
*/
public static ImageInfo getImageInfo(final byte bytes[])
throws ImageReadException, IOException {
return getImageInfo(new ByteSourceArray(bytes), null);
}
/**
* Parses the "image info" of an image.
* <p>
* "Image info" is a summary of basic information about the image such as:
* width, height, file format, bit depth, color type, etc.
* <p>
* Not to be confused with "image metadata."
* <p>
*
* @param bytes
* Byte array containing an image file.
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return An instance of ImageInfo.
* @see ImageInfo
*/
public static ImageInfo getImageInfo(final byte bytes[], final Map<String,Object> params)
throws ImageReadException, IOException {
return getImageInfo(new ByteSourceArray(bytes), params);
}
/**
* Parses the "image info" of an image file.
* <p>
* "Image info" is a summary of basic information about the image such as:
* width, height, file format, bit depth, color type, etc.
* <p>
* Not to be confused with "image metadata."
* <p>
*
* @param file
* File containing image data.
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return An instance of ImageInfo.
* @see ImageInfo
*/
public static ImageInfo getImageInfo(final File file, final Map<String,Object> params)
throws ImageReadException, IOException {
return getImageInfo(new ByteSourceFile(file), params);
}
/**
* Parses the "image info" of an image file.
* <p>
* "Image info" is a summary of basic information about the image such as:
* width, height, file format, bit depth, color type, etc.
* <p>
* Not to be confused with "image metadata."
* <p>
*
* @param file
* File containing image data.
* @return An instance of ImageInfo.
* @see ImageInfo
*/
public static ImageInfo getImageInfo(final File file) throws ImageReadException,
IOException {
return getImageInfo(file, null);
}
private static ImageInfo getImageInfo(final ByteSource byteSource, final Map<String,Object> params)
throws ImageReadException, IOException {
final ImageParser imageParser = getImageParser(byteSource);
final ImageInfo imageInfo = imageParser.getImageInfo(byteSource, params);
return imageInfo;
}
private static ImageParser getImageParser(final ByteSource byteSource)
throws ImageReadException, IOException {
final ImageFormat format = guessFormat(byteSource);
if (!format.equals(ImageFormat.IMAGE_FORMAT_UNKNOWN)) {
final ImageParser imageParsers[] = ImageParser.getAllImageParsers();
for (final ImageParser imageParser : imageParsers) {
if (imageParser.canAcceptType(format)) {
return imageParser;
}
}
}
final String filename = byteSource.getFilename();
if (filename != null) {
final ImageParser imageParsers[] = ImageParser.getAllImageParsers();
for (final ImageParser imageParser : imageParsers) {
if (imageParser.canAcceptExtension(filename)) {
return imageParser;
}
}
}
throw new ImageReadException("Can't parse this format.");
}
/**
* Determines the width and height of an image.
* <p>
*
* @param is
* InputStream from which to read image data.
* @param filename
* Filename associated with image data (optional).
* @return The width and height of the image.
*/
public static Dimension getImageSize(final InputStream is, final String filename)
throws ImageReadException, IOException {
return getImageSize(is, filename, null);
}
/**
* Determines the width and height of an image.
* <p>
*
* @param is
* InputStream from which to read image data.
* @param filename
* Filename associated with image data (optional).
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return The width and height of the image.
*/
public static Dimension getImageSize(final InputStream is, final String filename,
final Map<String,Object> params) throws ImageReadException, IOException {
return getImageSize(new ByteSourceInputStream(is, filename), params);
}
/**
* Determines the width and height of an image.
* <p>
*
* @param bytes
* Byte array containing an image file.
* @return The width and height of the image.
*/
public static Dimension getImageSize(final byte bytes[])
throws ImageReadException, IOException {
return getImageSize(bytes, null);
}
/**
* Determines the width and height of an image.
* <p>
*
* @param bytes
* Byte array containing an image file.
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return The width and height of the image.
*/
public static Dimension getImageSize(final byte bytes[], final Map<String,Object> params)
throws ImageReadException, IOException {
return getImageSize(new ByteSourceArray(bytes), params);
}
/**
* Determines the width and height of an image file.
* <p>
*
* @param file
* File containing image data.
* @return The width and height of the image.
*/
public static Dimension getImageSize(final File file) throws ImageReadException,
IOException {
return getImageSize(file, null);
}
/**
* Determines the width and height of an image file.
* <p>
*
* @param file
* File containing image data.
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return The width and height of the image.
*/
public static Dimension getImageSize(final File file, final Map<String,Object> params)
throws ImageReadException, IOException {
return getImageSize(new ByteSourceFile(file), params);
}
public static Dimension getImageSize(final ByteSource byteSource, final Map<String,Object> params)
throws ImageReadException, IOException {
final ImageParser imageParser = getImageParser(byteSource);
return imageParser.getImageSize(byteSource, params);
}
/**
* Extracts the embedded XML metadata as an XML string.
* <p>
*
* @param is
* InputStream from which to read image data.
* @param filename
* Filename associated with image data (optional).
* @return Xmp Xml as String, if present. Otherwise, returns null.
*/
public static String getXmpXml(final InputStream is, final String filename)
throws ImageReadException, IOException {
return getXmpXml(is, filename, null);
}
/**
* Extracts the embedded XML metadata as an XML string.
* <p>
*
* @param is
* InputStream from which to read image data.
* @param filename
* Filename associated with image data (optional).
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return Xmp Xml as String, if present. Otherwise, returns null.
*/
public static String getXmpXml(final InputStream is, final String filename, final Map<String,Object> params)
throws ImageReadException, IOException {
return getXmpXml(new ByteSourceInputStream(is, filename), params);
}
/**
* Extracts the embedded XML metadata as an XML string.
* <p>
*
* @param bytes
* Byte array containing an image file.
* @return Xmp Xml as String, if present. Otherwise, returns null.
*/
public static String getXmpXml(final byte bytes[]) throws ImageReadException,
IOException {
return getXmpXml(bytes, null);
}
/**
* Extracts the embedded XML metadata as an XML string.
* <p>
*
* @param bytes
* Byte array containing an image file.
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return Xmp Xml as String, if present. Otherwise, returns null.
*/
public static String getXmpXml(final byte bytes[], final Map<String,Object> params)
throws ImageReadException, IOException {
return getXmpXml(new ByteSourceArray(bytes), params);
}
/**
* Extracts the embedded XML metadata as an XML string.
* <p>
*
* @param file
* File containing image data.
* @return Xmp Xml as String, if present. Otherwise, returns null.
*/
public static String getXmpXml(final File file) throws ImageReadException,
IOException {
return getXmpXml(file, null);
}
/**
* Extracts the embedded XML metadata as an XML string.
* <p>
*
* @param file
* File containing image data.
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return Xmp Xml as String, if present. Otherwise, returns null.
*/
public static String getXmpXml(final File file, final Map<String,Object> params)
throws ImageReadException, IOException {
return getXmpXml(new ByteSourceFile(file), params);
}
/**
* Extracts the embedded XML metadata as an XML string.
* <p>
*
* @param byteSource
* File containing image data.
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return Xmp Xml as String, if present. Otherwise, returns null.
*/
public static String getXmpXml(final ByteSource byteSource, final Map<String,Object> params)
throws ImageReadException, IOException {
final ImageParser imageParser = getImageParser(byteSource);
return imageParser.getXmpXml(byteSource, params);
}
/**
* Parses the metadata of an image. This metadata depends on the format of
* the image.
* <p>
* JPEG/JFIF files may contain EXIF and/or IPTC metadata. PNG files may
* contain comments. TIFF files may contain metadata.
* <p>
* The instance of IImageMetadata returned by getMetadata() should be upcast
* (depending on image format).
* <p>
* Not to be confused with "image info."
* <p>
*
* @param bytes
* Byte array containing an image file.
* @return An instance of IImageMetadata.
* @see IImageMetadata
*/
public static IImageMetadata getMetadata(final byte bytes[])
throws ImageReadException, IOException {
return getMetadata(bytes, null);
}
/**
* Parses the metadata of an image. This metadata depends on the format of
* the image.
* <p>
* JPEG/JFIF files may contain EXIF and/or IPTC metadata. PNG files may
* contain comments. TIFF files may contain metadata.
* <p>
* The instance of IImageMetadata returned by getMetadata() should be upcast
* (depending on image format).
* <p>
* Not to be confused with "image info."
* <p>
*
* @param bytes
* Byte array containing an image file.
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return An instance of IImageMetadata.
* @see IImageMetadata
*/
public static IImageMetadata getMetadata(final byte bytes[], final Map<String,Object> params)
throws ImageReadException, IOException {
return getMetadata(new ByteSourceArray(bytes), params);
}
/**
* Parses the metadata of an image file. This metadata depends on the format
* of the image.
* <p>
* JPEG/JFIF files may contain EXIF and/or IPTC metadata. PNG files may
* contain comments. TIFF files may contain metadata.
* <p>
* The instance of IImageMetadata returned by getMetadata() should be upcast
* (depending on image format).
* <p>
* Not to be confused with "image info."
* <p>
*
* @param is
* InputStream from which to read image data.
* @param filename
* Filename associated with image data (optional).
* @return An instance of IImageMetadata.
* @see IImageMetadata
*/
public static IImageMetadata getMetadata(final InputStream is, final String filename)
throws ImageReadException, IOException {
return getMetadata(is, filename, null);
}
/**
* Parses the metadata of an image file. This metadata depends on the format
* of the image.
* <p>
* JPEG/JFIF files may contain EXIF and/or IPTC metadata. PNG files may
* contain comments. TIFF files may contain metadata.
* <p>
* The instance of IImageMetadata returned by getMetadata() should be upcast
* (depending on image format).
* <p>
* Not to be confused with "image info."
* <p>
*
* @param is
* InputStream from which to read image data.
* @param filename
* Filename associated with image data (optional).
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return An instance of IImageMetadata.
* @see IImageMetadata
*/
public static IImageMetadata getMetadata(final InputStream is, final String filename,
final Map<String,Object> params) throws ImageReadException, IOException {
return getMetadata(new ByteSourceInputStream(is, filename), params);
}
/**
* Parses the metadata of an image file. This metadata depends on the format
* of the image.
* <p>
* JPEG/JFIF files may contain EXIF and/or IPTC metadata. PNG files may
* contain comments. TIFF files may contain metadata.
* <p>
* The instance of IImageMetadata returned by getMetadata() should be upcast
* (depending on image format).
* <p>
* Not to be confused with "image info."
* <p>
*
* @param file
* File containing image data.
* @return An instance of IImageMetadata.
* @see IImageMetadata
*/
public static IImageMetadata getMetadata(final File file)
throws ImageReadException, IOException {
return getMetadata(file, null);
}
/**
* Parses the metadata of an image file. This metadata depends on the format
* of the image.
* <p>
* JPEG/JFIF files may contain EXIF and/or IPTC metadata. PNG files may
* contain comments. TIFF files may contain metadata.
* <p>
* The instance of IImageMetadata returned by getMetadata() should be upcast
* (depending on image format).
* <p>
* Not to be confused with "image info."
* <p>
*
* @param file
* File containing image data.
* @param params
* Map of optional parameters, defined in ImagingConstants.
* @return An instance of IImageMetadata.
* @see IImageMetadata
*/
public static IImageMetadata getMetadata(final File file, final Map<String,Object> params)
throws ImageReadException, IOException {
return getMetadata(new ByteSourceFile(file), params);
}
private static IImageMetadata getMetadata(final ByteSource byteSource, final Map<String,Object> params)
throws ImageReadException, IOException {
final ImageParser imageParser = getImageParser(byteSource);
return imageParser.getMetadata(byteSource, params);
}
/**
* Write the ImageInfo and format-specific information for the image
* content of the specified byte array to a string.
* @param bytes A valid array of bytes.
* @return A valid string.
* @throws ImageReadException In the event that the the specified
* content does not conform to the format of the specific parser
* implementation.
* @throws IOException In the event of unsuccessful read or
* access operation.
*/
public static String dumpImageFile(final byte bytes[]) throws ImageReadException,
IOException {
return dumpImageFile(new ByteSourceArray(bytes));
}
/**
* Write the ImageInfo and format-specific information for the image
* content of the specified file to a string.
* @param file A valid file reference.
* @return A valid string.
* @throws ImageReadException In the event that the the specified
* content does not conform to the format of the specific parser
* implementation.
* @throws IOException In the event of unsuccessful read or
* access operation.
*/
public static String dumpImageFile(final File file) throws ImageReadException,
IOException {
return dumpImageFile(new ByteSourceFile(file));
}
private static String dumpImageFile(final ByteSource byteSource)
throws ImageReadException, IOException {
final ImageParser imageParser = getImageParser(byteSource);
return imageParser.dumpImageFile(byteSource);
}
/**
* Attempts to determine the image format of the specified data and
* evaluates its format compliance. This method
* returns a FormatCompliance object which includes information
* about the data's compliance to a specific format.
* @param bytes a valid array of bytes containing image data.
* @return if successful, a valid FormatCompliance object.
* @throws ImageReadException in the event of unreadable data.
* @throws IOException in the event of an unrecoverable I/O condition.
*/
public static FormatCompliance getFormatCompliance(final byte bytes[])
throws ImageReadException, IOException {
return getFormatCompliance(new ByteSourceArray(bytes));
}
/**
* Attempts to determine the image format of the specified data and
* evaluates its format compliance. This method
* returns a FormatCompliance object which includes information
* about the data's compliance to a specific format.
* @param file valid file containing image data
* @return if successful, a valid FormatCompliance object.
* @throws ImageReadException in the event of unreadable data.
* @throws IOException in the event of an unrecoverable I/O condition.
*/
public static FormatCompliance getFormatCompliance(final File file)
throws ImageReadException, IOException {
return getFormatCompliance(new ByteSourceFile(file));
}
private static FormatCompliance getFormatCompliance(final ByteSource byteSource)
throws ImageReadException, IOException {
final ImageParser imageParser = getImageParser(byteSource);
return imageParser.getFormatCompliance(byteSource);
}
/**
* Gets all images specified by the InputStream (some
* formats may include multiple images within a single data source).
* @param is A valid InputStream
* @return A valid (potentially empty) list of BufferedImage objects.
* @throws ImageReadException In the event that the the specified
* content does not conform to the format of the specific parser
* implementation.
* @throws IOException In the event of unsuccessful read or
* access operation.
*/
public static List<BufferedImage> getAllBufferedImages(final InputStream is,
final String filename) throws ImageReadException, IOException {
return getAllBufferedImages(new ByteSourceInputStream(is, filename));
}
/**
* Gets all images specified by the byte array (some
* formats may include multiple images within a single data source).
* @param bytes a valid array of bytes
* @return A valid (potentially empty) list of BufferedImage objects.
* @throws ImageReadException In the event that the the specified
* content does not conform to the format of the specific parser
* implementation.
* @throws IOException In the event of unsuccessful read or
* access operation.
*/
public static List<BufferedImage> getAllBufferedImages(final byte bytes[])
throws ImageReadException, IOException {
return getAllBufferedImages(new ByteSourceArray(bytes));
}
/**
* Gets all images specified by the file (some
* formats may include multiple images within a single data source).
* @param file A reference to a valid data file.
* @return A valid (potentially empty) list of BufferedImage objects.
* @throws ImageReadException In the event that the the specified
* content does not conform to the format of the specific parser
* implementation.
* @throws IOException In the event of unsuccessful read or
* access operation.
*/
public static List<BufferedImage> getAllBufferedImages(final File file)
throws ImageReadException, IOException {
return getAllBufferedImages(new ByteSourceFile(file));
}
private static List<BufferedImage> getAllBufferedImages(
final ByteSource byteSource) throws ImageReadException, IOException {
final ImageParser imageParser = getImageParser(byteSource);
return imageParser.getAllBufferedImages(byteSource);
}
/**
* Reads the first image from an InputStream.
* <p>
* For the most recent information on support for specific formats, refer to
* <a href="http://commons.apache.org/imaging/formatsupport.html">Format Support</a>
* at the main project development web site. While the Apache Commons
* Imaging package does not fully support all formats, it can read
* image info, metadata and ICC profiles from all image formats that
* provide this data.
* @param is a valid ImageStream from which to read data.
* @return if successful, a valid buffered image
* @throws ImageReadException in the event of a processing error
* while reading an image (i.e. a format violation, etc.).
* @throws IOException in the event of an unrecoverable I/O exception.
*/
public static BufferedImage getBufferedImage(final InputStream is)
throws ImageReadException, IOException {
return getBufferedImage(is, null);
}
/**
* Reads the first image from an InputStream
* using data-processing options specified through a parameters
* map. Options may be configured using the ImagingContants
* interface or the various format-specific implementations provided
* by this package.
* <p>
* For the most recent information on support for specific formats, refer to
* <a href="http://commons.apache.org/imaging/formatsupport.html">Format Support</a>
* at the main project development web site. While the Apache Commons
* Imaging package does not fully support all formats, it can read
* image info, metadata and ICC profiles from all image formats that
* provide this data.
* @param is a valid ImageStream from which to read data.
* @param params an optional parameters map specifying options
* @return if successful, a valid buffered image
* @throws ImageReadException in the event of a processing error
* while reading an image (i.e. a format violation, etc.).
* @throws IOException in the event of an unrecoverable I/O exception.
*/
public static BufferedImage getBufferedImage(final InputStream is, final Map<String,Object> params)
throws ImageReadException, IOException {
String filename = null;
if (params != null && params.containsKey(PARAM_KEY_FILENAME)) {
filename = (String) params.get(PARAM_KEY_FILENAME);
}
return getBufferedImage(new ByteSourceInputStream(is, filename), params);
}
/**
* Reads the first image from a byte array.
* <p>
* For the most recent information on support for specific formats, refer to
* <a href="http://commons.apache.org/imaging/formatsupport.html">Format Support</a>
* at the main project development web site. While the Apache Commons
* Imaging package does not fully support all formats, it can read
* image info, metadata and ICC profiles from all image formats that
* provide this data.
* @param bytes a valid array of bytes from which to read data.
* @return if successful, a valid buffered image
* @throws ImageReadException in the event of a processing error
* while reading an image (i.e. a format violation, etc.).
* @throws IOException in the event of an unrecoverable I/O exception.
*/
public static BufferedImage getBufferedImage(final byte bytes[])
throws ImageReadException, IOException {
return getBufferedImage(new ByteSourceArray(bytes), null);
}
/**
* Reads the first image from a byte array
* using data-processing options specified through a parameters
* map. Options may be configured using the ImagingContants
* interface or the various format-specific implementations provided
* by this package.
* <p>
* For the most recent information on support for specific formats, refer to
* <a href="http://commons.apache.org/imaging/formatsupport.html">Format Support</a>
* at the main project development web site. While the Apache Commons
* Imaging package does not fully support all formats, it can read
* image info, metadata and ICC profiles from all image formats that
* provide this data.
* @param bytes a valid array of bytes from which to read data.
* @param params an optional parameters map specifying options.
* @return if successful, a valid buffered image
* @throws ImageReadException in the event of a processing error
* while reading an image (i.e. a format violation, etc.).
* @throws IOException in the event of an unrecoverable I/O exception.
*/
public static BufferedImage getBufferedImage(final byte bytes[], final Map<String,Object> params)
throws ImageReadException, IOException {
return getBufferedImage(new ByteSourceArray(bytes), params);
}
/**
* Reads the first image from a file.
* <p>
* For the most recent information on support for specific formats, refer to
* <a href="http://commons.apache.org/imaging/formatsupport.html">Format Support</a>
* at the main project development web site. While the Apache Commons
* Imaging package does not fully support all formats, it can read
* image info, metadata and ICC profiles from all image formats that
* provide this data.
* @param file a valid reference to a file containing image data.
* @return if successful, a valid buffered image
* @throws ImageReadException in the event of a processing error
* while reading an image (i.e. a format violation, etc.).
* @throws IOException in the event of an unrecoverable I/O exception.
*/
public static BufferedImage getBufferedImage(final File file)
throws ImageReadException, IOException {
return getBufferedImage(new ByteSourceFile(file), null);
}
/**
* Reads the first image from a file
* using data-processing options specified through a parameters
* map. Options may be configured using the ImagingContants
* interface or the various format-specific implementations provided
* by this package.
* <p>
* For the most recent information on support for specific formats, refer to
* <a href="http://commons.apache.org/imaging/formatsupport.html">Format Support</a>
* at the main project development web site. While the Apache Commons
* Imaging package does not fully support all formats, it can read
* image info, metadata and ICC profiles from all image formats that
* provide this data.
* @param file a valid reference to a file containing image data.
* @return if successful, a valid buffered image
* @throws ImageReadException in the event of a processing error
* while reading an image (i.e. a format violation, etc.).
* @throws IOException in the event of an unrecoverable I/O exception.
*/
public static BufferedImage getBufferedImage(final File file, final Map<String,Object> params)
throws ImageReadException, IOException {
return getBufferedImage(new ByteSourceFile(file), params);
}
private static BufferedImage getBufferedImage(final ByteSource byteSource,
Map<String,Object> params) throws ImageReadException, IOException {
final ImageParser imageParser = getImageParser(byteSource);
if (null == params) {
params = new HashMap<String,Object>();
}
return imageParser.getBufferedImage(byteSource, params);
}
/**
* Writes the content of a BufferedImage to a file using the specified
* image format. Specifications for storing the file (such as data compression,
* color models, metadata tags, etc.) may be specified using an optional
* parameters map. These specifications are defined in the ImagingConstants
* interface or in various format-specific implementations.
* <p>
* Image writing is not supported for all graphics formats.
* For the most recent information on support for specific formats, refer to
* <a href="http://commons.apache.org/imaging/formatsupport.html">Format Support</a>
* at the main project development web site. While the Apache Commons
* Imaging package does not fully support all formats, it can read
* image info, metadata and ICC profiles from all image formats that
* provide this data.
* @param src a valid BufferedImage object
* @param file the file to which the output image is to be written
* @param format the format in which the output image is to be written
* @param params an optional parameters map (nulls permitted)
* @throws ImageWriteException in the event of a format violation,
* unsupported image format, etc.
* @throws IOException in the event of an unrecoverable I/O exception.
* @see ImagingConstants
*/
public static void writeImage(final BufferedImage src, final File file,
final ImageFormat format, final Map<String,Object> params) throws ImageWriteException,
IOException {
OutputStream os = null;
try {
os = new FileOutputStream(file);
os = new BufferedOutputStream(os);
writeImage(src, os, format, params);
} finally {
try {
if (os != null) {
os.close();
}
} catch (final Exception e) {
Debug.debug(e);
}
}
}
/**
* Writes the content of a BufferedImage to a byte array using the specified
* image format. Specifications for storing the file (such as data compression,
* color models, metadata tags, etc.) may be specified using an optional
* parameters map. These specifications are defined in the ImagingConstants
* interface or in various format-specific implementations.
* <p>
* Image writing is not supported for all graphics formats.
* For the most recent information on support for specific formats, refer to
* <a href="http://commons.apache.org/imaging/formatsupport.html">Format Support</a>
* at the main project development web site. While the Apache Commons
* Imaging package does not fully support all formats, it can read
* image info, metadata and ICC profiles from all image formats that
* provide this data.
* @param src a valid BufferedImage object
* @param format the format in which the output image is to be written
* @param params an optional parameters map (nulls permitted)
* @return if successful, a valid array of bytes.
* @throws ImageWriteException in the event of a format violation,
* unsupported image format, etc.
* @throws IOException in the event of an unrecoverable I/O exception.
* @see ImagingConstants
*/
public static byte[] writeImageToBytes(final BufferedImage src,
final ImageFormat format, final Map<String,Object> params) throws ImageWriteException,
IOException {
final ByteArrayOutputStream os = new ByteArrayOutputStream();
writeImage(src, os, format, params);
return os.toByteArray();
}
/**
* Writes the content of a BufferedImage to an OutputStream using the specified
* image format. Specifications for storing the file (such as data compression,
* color models, metadata tags, etc.) may be specified using an optional
* parameters map. These specifications are defined in the ImagingConstants
* interface or in various format-specific implementations.
* <p>
* Image writing is not supported for all graphics formats.
* For the most recent information on support for specific formats, refer to
* <a href="http://commons.apache.org/imaging/formatsupport.html">Format Support</a>
* at the main project development web site. While the Apache Commons
* Imaging package does not fully support all formats, it can read
* image info, metadata and ICC profiles from all image formats that
* provide this data.
* @param src a valid BufferedImage object
* @param os the OutputStream to which the output image is to be written
* @param format the format in which the output image is to be written
* @param params an optional parameters map (nulls permitted)
* @throws ImageWriteException in the event of a format violation,
* unsupported image format, etc.
* @throws IOException in the event of an unrecoverable I/O exception.
* @see ImagingConstants
*/
public static void writeImage(final BufferedImage src, final OutputStream os,
final ImageFormat format, Map<String,Object> params) throws ImageWriteException,
IOException {
final ImageParser imageParsers[] = ImageParser.getAllImageParsers();
// make sure params are non-null
if (params == null) {
params = new HashMap<String,Object>();
}
params.put(PARAM_KEY_FORMAT, format);
for (final ImageParser imageParser2 : imageParsers) {
final ImageParser imageParser = imageParser2;
if (!imageParser.canAcceptType(format)) {
continue;
}
imageParser.writeImage(src, os, params);
return;
}
throw new ImageWriteException("Unknown Format: " + format);
}
}