[magick-users] Number of colors (identify -verbose)

Anthony Thyssen anthony at griffith.edu.au
Sun Nov 4 18:17:02 PST 2007


Al Bogner on  wrote...
| I changed from Suse 10.2 to Suse 10.3, which changed the IM version too from
| 
| Suse 10.2
| identify -version
| Version: ImageMagick 6.3.0 10/12/07 Q16
| 
| Suse 10.3
| identify -version
| Version: ImageMagick 6.3.5 09/25/07 Q16
| 
| Suse 10.2
| identify -verboset test.jpg | grep "Colors:"
|   Colors: 373602
| 
| Suse 10.3
| no result
| 
| Was the number of colors removed or did Suse something wrong?
| 
Errr..  try removing the 't' from   "-verboset"


And you are right 'Colors:' appears missing.

But you can get them using
   identify -format %k test.jpg

NOTE: the number of colors in a JPEG image is actually rather usless as
a jpeg does not store 'colors' but foruier waves.  That is the actual
color is generated whenever the image is read, often resulting in a
unique color for each and every pixel.


  Anthony Thyssen ( System Programmer )    <A.Thyssen at griffith.edu.au>
 -----------------------------------------------------------------------------
  Machines cannot be liked or disliked; they are immune to emotion.
  We can use them or misuse them, so the problem of machines is a human
  problem like all others.       -- Stainless Steel Rat (Saves the World)
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     Anthony's Home is his Castle     http://www.cit.gu.edu.au/~anthony/


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