What is the need for thresholding in image compression?

Tal, Hey, You suf....

...fer from the notion that without abita context weall will know what it's allabout

To compress an image requires segmentation. Thresholding is the simplest method of image segmentation. From a grayscale image, thresholding can be used to create binary images.

Thresholds of various sorts are used throughout image compressors.

Still in the dark C/C but thanks