/*
* HaoRan ImageFilter Classes v0.3
* Copyright (C) 2012 Zhenjun Dai
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation; either version 2.1 of the License, or (at your
* option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation.
*/
package com.marshalchen.common.uimodule.ImageFilter;
import com.marshalchen.common.uimodule.ImageFilter.IImageFilter.Function;
public class SharpFilter implements IImageFilter{
int _step;
public SharpFilter() {
_step = 1;
}
SharpFilter(int step){
_step = step;
}
public Image process(Image imageIn)
{
int height =imageIn.getHeight();
int width =imageIn.getWidth();
Image clone = imageIn.clone();
imageIn.clearImage(0xffffff);
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int[] Laplacian = new int[]{ -1, -1, -1, -1, 8 +_step, -1, -1, -1, -1 };
for (int x = 1; x < width - 1; x++)
{
for (int y = 1; y < height - 1; y++)
{
int r = 0, g = 0, b = 0;
int Index = 0;
for (int col = -1; col <= 1; col++)
{
for (int row = -1; row <= 1; row++)
{
int rr = clone.getRComponent(x + row, y + col);
int gg = clone.getGComponent(x + row, y + col);
int bb = clone.getBComponent(x + row, y + col);
r += rr * Laplacian[Index];
g += gg * Laplacian[Index];
b += bb * Laplacian[Index];
Index++;
}
}
imageIn.setPixelColor(x-1, y-1, Image.SAFECOLOR(r), Image.SAFECOLOR(g), Image.SAFECOLOR(b));
}
}
return imageIn;
}
}