Binary image

A Binary image is a kind of raster graphic image. Each pixel of the image can only one of two different values, usually black and white. For this reason, only one bit is needed per pixel. Most of the time, the value 0 is coded as white, and 1 is used for black.

Binary image of a leaf

Binary images are used:

in image processing, for example for edge detection or pattern recognition
In newspaper printing
In laser printers, and fax machines

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