SmoothToonFilter.java

package com.marshalchen.common.uimodule.imageprocessing.filter.effect;

import com.marshalchen.common.uimodule.imageprocessing.filter.GroupFilter;
import com.marshalchen.common.uimodule.imageprocessing.filter.processing.GaussianBlurFilter;

/**
 * This uses a similar process as the GPUImageToonFilter, only it precedes the toon effect with a Gaussian blur to smooth out noise.
 * blurSize: A multiplier for the prepass blur size, ranging from 0.0 on up
 * threshold: The sensitivity of the edge detection, with lower values being more sensitive. Ranges from 0.0 to 1.0
 * quantizationLevels: The number of color levels to represent in the final image.
 * @author Chris Batt
 */
public class SmoothToonFilter extends GroupFilter {
	public SmoothToonFilter(float blurSize, float threshold, float quantizationLevels) {
		GaussianBlurFilter blur = new GaussianBlurFilter(blurSize);
		ToonFilter toon = new ToonFilter(threshold, quantizationLevels);
		blur.addTarget(toon);
		toon.addTarget(this);
		
		registerInitialFilter(blur);
		registerTerminalFilter(toon);
	}
}