/**
* @param id desired filter to be applied to a bitmap
* @param src bitmap source image to be filtered
* @return src bitmap with filter applied
*/
public static Bitmap applyFilter(int id, Bitmap src) {
FastBitmap img = new FastBitmap(src);
img.toRGB();
// Interface for generic filter
IBaseInPlace filter = null;
switch (id) {
case FILTER_NONE:
break;
case FILTER_SEPIA:
filter = new Sepia();
break;
case FILTER_GRAYSCALE:
filter = new Grayscale();
break;
case FILTER_EMBOSS:
filter = new Emboss();
break;
case FILTER_INVERT:
filter = new Invert();
break;
case FILTER_BLUR:
filter = new Blur();
break;
case FILTER_SHARPEN:
filter = new Sharpen();
break;
case FILTER_MORPH:
filter = new Morph();
break;
case FILTER_BRIGHTNESS:
filter = new BrightnessCorrection();
break;
case FILTER_GAUSSIAN:
filter = new GaussianBlur();
break;
default:
break;
}
if (filter != null) {
filter.applyInPlace(img);
}
return img.toBitmap();
}
@Override
public void applyInPlace(FastBitmap fastBitmap) {
if (fastBitmap.isRGB()) {
fastBitmap.toGrayscale();
}
if (invert) new Invert().applyInPlace(fastBitmap);
int size = fastBitmap.getWidth() * fastBitmap.getHeight();
int min = ImageStatistics.Minimum(fastBitmap);
int max = ImageStatistics.Maximum(fastBitmap);
fastBitmap.toRGB();
for (int i = 0; i < size; i++) {
int[] rgb = GrayscaleToHeatMap(fastBitmap.getRed(i), min, max);
fastBitmap.setRGB(i, rgb);
}
}