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- import java.awt.Color;
- /**
- * Ujian Akhir Semester
- * Kelas PBO B
- * @author Hendra Ramadani (05111740000055)
- * 10 December 2018
- */
- public class ThresholdFilter extends Filter
- {
- /**
- * Constructor for objects of class ThresholdFilter.
- * @param name The name of the filter.
- */
- public ThresholdFilter(String name)
- {
- super(name);
- }
- /**
- * Apply this filter to an image.
- *
- * @param image The image to be changed by this filter.
- */
- public void apply(OFImage image)
- {
- int height = image.getHeight();
- int width = image.getWidth();
- for(int y = 0; y < height; y++) {
- for(int x = 0; x < width; x++) {
- Color pixel = image.getPixel(x, y);
- int brightness = (pixel.getRed() + pixel.getBlue() + pixel.getGreen()) / 3;
- if(brightness <= 85) {
- image.setPixel(x, y, Color.BLACK);
- }
- else if(brightness <= 170) {
- image.setPixel(x, y, Color.GRAY);
- }
- else {
- image.setPixel(x, y, Color.WHITE);
- }
- }
- }
- }
- }
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