PImage img; void setup() { size(323, 450); img = loadImage("love.jpg"); } void draw(){ loadPixels(); for (int x = 0; x < img.width; x++) { for (int y = 0; y < img.height; y++ ) { int loc = x + y*img.width; float r = red (img.pixels[loc]); float g = green (img.pixels[loc]); float b = blue (img.pixels[loc]); float distance = dist(x,y,mouseX,mouseY); float adjustBrightness = (100-distance)/100; r *= adjustBrightness; g *= adjustBrightness; b *= adjustBrightness; r = constrain(r,0,255); g = constrain(g,0,255); b = constrain(b,0,255); color c = color(r,g,b); pixels[loc] = c; } } updatePixels(); }