| View Poll Results: How do you like your coffee | |||
| Cappuccino |
   
|
9 | 37.50% |
| Black |
  
|
8 | 33.33% |
| Espresso |
  
|
7 | 29.17% |
| I don't drink coffee. |
  
|
6 | 25.00% |
| Latte |
  
|
6 | 25.00% |
| Cream |
  
|
4 | 16.67% |
| Sugar |
|
4 | 16.67% |
| Cream and Sugar |
|
2 | 8.33% |
| Iced Varieties |
|
2 | 8.33% |
| Other |
|
2 | 8.33% |
| Decaf |
|
0 | 0% |
| Multiple Choice Poll. Voters: 24. This poll is closed | |||
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ppmtopgm(1) General Commands Manual ppmtopgm(1) NAME
ppmtopgm - convert a portable pixmap into a portable graymap SYNOPSIS
ppmtopgm [ppmfile] DESCRIPTION
Reads a portable pixmap as input. Produces a portable graymap as output. The output is a "black and white" rendering of the original image, as in a black and white photograph. The quantization formula used is .299 r + .587 g + .114 b. Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any ppm program can read pgm (and pbm ) files automatically. pgmtoppm is for colorizing a pgm file. Also, see ppmtorgb3 for a different way of converting color to gray. And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate the original colors, not necessarily a way that looks like a black and white photograph. QUOTE
Cold-hearted orb that rules the night Removes the colors from our sight Red is gray, and yellow white But we decide which is right And which is a quantization error. SEE ALSO
pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5) AUTHOR
Copyright (C) 1989 by Jef Poskanzer. 10 April 2000 ppmtopgm(1)
