Tag Archives: Color

RGB Color

RGB (Red, Green, Blue) is a way of describing color. Each color is described by a set of three numbers. For example, (102, 51, 255) describes THIS COLOR.

The color’s RGB value, written (n, n, n), describes the intensity of the red, green, and blue channels that make up that color. The range of values for each channel depends on the channel’s bit-depth, or how many bits are used for each channel.

Bit Depth Range
8 bit 0 – 255
16 bit 0 – 32768
32 bit 0.000 – 1.000

For example, in an 8-bit RGB each channel can have a value from 0 to 255. Zero means no brightness for that channel, 255 means maximum brightness. 8 bit RGB colors can range from (0, 0, 0) to (255, 255, 255) and every combination in between, or 2563 = 16,777,216 different colors.
Note that a 32 bit RGB should have an integer range between 0 and 232-1 or 4,294,967,295. However, this is normalized to a decimal value between 0.000 and 1.000.

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Black and White Digital Photos

Balancing Rock

There used to be only two ways to create black and white digital photos: either set your camera to black and white and take a picture, or use expensive photo editing software. Both methods left something to be desired, either in terms of poor quality or high cost.

Today there are more options for creating great looking black and white digital photos.

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