9/7/2001
CS 461, Copyright G.D. Hager
Storing Images
•Non-lossy schemes
–pbm/pgm/ppm/pnm
•code for file type, size, number of bands, and maximum brightness
–tif (lossless and lossy versions)
–bmp
–gif
–
•Lossy schemes
–jpg
•uses Y Cb Cr color representation; subsamples the color
•Uses DCT on result
•Uses the fact the human system is less sensitive to color than spatial detail