Q4) [5 points] Given the following sub-image of a 24-bit image (RGB image) where each pixel is given by the three values r,g, b. Convert the image to an 8-bit image showing the pixel values and the needed color lookup table. 100,100,100 100, 200, 50 100,100,100 100,100,100 50,50,50 0,0,0 100, 200, 50 0,0,0 50,50,50 1,1,1 100, 200, SO 0,0,0 1,1,1 0,0,0 100, 200, 50 1,1,1