Bit Depth Sort

Each pixel is passed to a mapping formula that determines, for each RGB channel, the minimum bit depth it takes to display it (or in other words, 8 minus log2 of the lowest base 2 divisor of the RGB values – f(113) = 8, f(212) = 6, f(32) = 3, f(128) = 1). The results are used to sort the pixels, combining the RGB values. In 4 different ways: - Frame 1 (Maximum): max(f(R), f(G), f(B)) - Frame 2 (Minimum): min(f(R), f(G), f(B)) - Frame 3 (Sum): f(R) + f(G) + f(B) - Frame 4 (Combinations): f(R) * 81 + f(G) * 9 + f(B)