public Channel brightness(float brightness) {
if (brightness > 1f) {
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
putPixelClip(x, y, brightness*getPixel(x, y));
}
}
} else {
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
putPixel(x, y, brightness*getPixel(x, y));
}
}
}
return this;
}