Run Length Encoding in PGM image

• This is a C program that can compress PGM image and edit color values

• takes P2 format PGM file as an input.

• Customizations you can do in a pgm image:

                    -Compressing image
                    -Decoding image
                    -Replace a color with another
                    -change a specefic pixels value
                    -create color histogram
  

!! you should compress the image before editing it. !!