[magick-users] Reducing output range

[Anthony Thyssen]

Illtud Daniel on  wrote...
| Hi,
| 
| I'm working with 8 bit greyscale images and I need to convert
| down to 5 bit (5 bits of level in each byte, still keeping 8 bits
| per pixel, top 3 bits always 0 - don't blame me, blame the printer
| language I'm fighting with).
| 
| I can simulate this in gimp or photoshop by reducing the output
| level range to 0-31, but I can't find a similar way of adjusting
| levels in Imagemagick (I'm actually using perlmagick).
| 
| Any help gratefully received.
| 
This is something I requested and is present in IM future proposals.

In the mean time you can use a LUT to reduce the number of colors

   http://www.cit.gu.edu.au/~anthony/graphics/imagick6/color/#color_lut


  Anthony Thyssen ( System Programmer )    <A.Thyssen at griffith.edu.au>
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