Soft Paint Bucket Fill: Colour Equality

Question

I\'m making a small app where children can fill preset illustrations with colours. I\'ve succesfully implemented an MS-paint style paint bucket using the flood fill argorith

Answer 1

Made something that works:

                c = b.getPixel(xx,yy);
                if (c == to) continue;
                if (c != from) d = 
                    Math.pow(f1 - (c & 0xFF), 2) +
                    Math.pow(f2 - (c >> 8 & 0xFF), 2) +
                    Math.pow(f3 - (c >> 16 & 0xFF), 2)
                if (c == from || d < tres) {