I want to be a white-hat hacker! Post: 302574114

2 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Certified Ethical Hacker

hello all, first of all i'm not sure this is correct place to post but i could not find a place about certificates and exams so this seemed most appropriate. i'm interested in CEH if it's any good and where to take exams, and any books you can forward me to. i do have one book but it's couple...

2. What is on Your Mind?

Hacker=Knowlegde Qoute

I don't know if anyone has seen this commercial, either on TV or on the internet, but it's an IBM Linux Prodigy commercial. Linux Prodigy 4Gf6hq8J_DQ At around 33 seconds there is a quote about collecting and sharing data. A couple of friends and I watched this and decided to try to create a...

LEARN ABOUT OPENSOLARIS

ppmtopgm

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)