| 21 |  | getinfo.c       program to read info. header from file | 
| 22 |  | glimage.c       simple program to display image on SGI | 
| 23 |  | greyscale.c     program to produce grey test levels | 
| 24 | + | macbethcal.c    program to calibrate image conversion using Macbeth chart | 
| 25 |  | mt160r.c        program to dump pixel file to Mannesman-Tally 160 | 
| 26 |  | neuclrtab.c     neural network color quantization code | 
| 27 |  | oki20.c         program to dump pixel file to OkiMate 20 monochrome printer | 
| 35 |  | pfilt.c         program to post-process picture file | 
| 36 |  | pflip.c         flip picture file horizontally and/or vertically | 
| 37 |  | pinterp.c       interpolate and extrapolate pictures with different views | 
| 38 | + | pmapgen.c       affine transformation for image mapping used by macbethcal | 
| 39 |  | protate.c       program to rotate picture file 90 degrees clockwise | 
| 40 |  | psign.c         produce picture from text | 
| 41 |  | psum.c          program to sum pictures | 
| 67 |  | xshowtrace.c    display a picture under X11 and watch the rays get traced | 
| 68 |  | falsecolor.csh  C-shell script to produce false color pictures | 
| 69 |  | normpat.csh     C-shell script to normalize pictures for tiling patterns | 
| 70 | < | pdfview.csh     post-process picture and depth map to simulate depth of field | 
| 70 | > | pdfblur.csh     compute views for depth of field blurring | 
| 71 | > | pmblur.csh      compute views for motion blurring | 
| 72 | > | xyzimage.csh    display images correctly for a particular monitor's primaries | 
| 73 |  | libtiff/        TIFF image library |