is 24-bit (the industry standard as of 2005), each channel has 8 bits, for red, green, and blue--in other words, the image is composed of three images (one for each channel), where each image can store discrete pixels with conventional brightness intensities between 0 and 255. If the RGB image is 48-bit (very high color-depth), each channel has 16-bit per pixel color, that is 16-bit red, green, and blue for each per pixel.

RGB color sample

Notice how the grey trees have similar brightness in all channels, the red dress is much

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