Bit Plane

This filter selects the bit position of each plane for display. Selecting 'None' for a plane will replace all values with 0x80 (middle gray for Y and no color for U or V). Selecting 'All' will send the display plane as is. Selecting 'Bit [1-8]' will display only that specific bit position of each pixel of the plane. For the Y plane a pixel will display as black is that bit is '0' or white is that bit is '1'. For U a pixel will be yellow-green if '0' purple if '1'. For V a pixel will be green for '0' and red for '1'. Generally lossy video codecs will show blocky structured patterns at higher numbered bit positions. See the bit plane entry in Wikipedia for more information about the application of bit plane filtering.