flash 8: pixel? rgb?? ??
px = bitmap.getPixel(x,y);
r = px >> 16 & 0xff; // red??
g = px >> 8 & 0xff; // green??
b = px >> 0xff; // blue??
br = Math.sqrt(r*r + g*g + b*b); // brightness ??
px = bitmap.getPixel(x,y);
r = px >> 16 & 0xff; // red??
g = px >> 8 & 0xff; // green??
b = px >> 0xff; // blue??
br = Math.sqrt(r*r + g*g + b*b); // brightness ??