PGM_PPM_Reader

Menu options:

1. Read an image file in PPM (p3) format
2. Read an image file in PGM (p2) format
3. Find all segments
4. Color the segments
5. Save the colored image to PGM
6. Compress and save the original image in a compressed format
7. Convert a compressed image to PGM format
8. Convert PPM to PGM (p3 -> p2)
9. Convert PGM to BW (p2 -> p2) 10.Convert PPM to PGM (p6 -> p5) 11.Convert PGM to BW (p5 -> p5)