A grayscale image with a bit depth of XXXXXXXXXXhas pixel values ranging between 146 and 210. We want to apply a contrast stretching to the image. Describe how the method is working as well give the...

A grayscale image with a bit depth of 8 (256) has pixel values ranging between 146 and 210. We want to apply a contrast stretching to the image. Describe how the method is working as well give the expression of the output pixel value as a function of the input pixel value