List of Video Color Check Utilities

HotLimit() - This method is called to perform the video color check for each pixel.

Returns a non-zero value if the color was corrected; otherwise if no problems then zero. These functions may be used to correct a pixel with RGB values that will give "unsafe" values of chrominance signal or composite signal amplitude when encoded into an NTSC or PAL color signal. This happens for certain high-intensity high-saturation colors that are rare in real scenes, but can easily be present in computer generated images.

Parameters:

  • Color48 *thepix - The pixel to check and correct if necessary.
  • int method = HOT_SCALE_LUM - One of the following values:
  • HOT_FLAG - Flag the pixel as black.
  • HOT_SCALE_LUM - Correct by scaling the luminance.
  • HOT_SCALE_SAT - Correct by scaling the saturation.