Image Segmentation
Binary images are produced from color images by segmentation. Segmentation is the process of assigning each pixel in the source image to two or more classes. If there are more than two classes then the usual result is several binary images. The simplest form of segmentation is probably Otsu thresholding which assigns pixels to foreground or background based on greyscale intensity. Another method is the watershed algorithm. Edge detection also often creates a binary image with some pixels assigned to edge pixels, and is also a first step in further segmentation.
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“True revolutionaries are like Godthey create the world in their own image. Our awesome responsibility to ourselves, to our children, and to the future is to create ourselves in the image of goodness, because the future depends on the nobility of our imaginings.”
—Barbara Grizzuti Harrison (b. 1941)