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24-Bit Color Tool

The 24-bit Color Tool lets you change how a true 24-bit color image is accessed. The HLImage++ 24-bit RGB Color Image (further referred to as the color image) is accessed by tools just as grayscale images are. Unlike grayscale images that only have one color plane (the grayscale color plane), the color image has three color planes (red, green, and blue) and can be accessed in one of four different ways. These four different ways are as follows:

  1. Red plane.
    • Tools will use the red plane of the color image when accessing image data.
  2. Green plane.
    • Tools will use the green plane of the color image when accessing image data.
  3. Blue plane.
    • Tools will use the blue plane of the color image when accessing image data.
  4. Luminance (Y)
    • Tools will use the luminance (intensity) of the color image when accessing image data. The luminance is the luminance of a color image expressed in YIQ format. It is calculated as: Y = 0.299R + 0.587G + 0.114B

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