[magick-users] Converting 16-bit GRAY files to 8 bits
Fred Weinhaus
fmw at alink.net
Mon Feb 2 12:12:32 PST 2009
>I do have Q16. I did some variants of the 'convert gradient:' commands
>in your other message and got both 8-bit and 16-bit grey-scale PNG's.
>It seems that the statement
> To force the use of an single 8bit greyscale channel use either
> convert input.jpg -type Scale gray.png
> convert input.jpg -type GrayScale gray.png
>at http://www.imagemagick.org/Usage/formats/#png_formats
>is incorrect.
>
>But I still don't know how to change my 12-bit pixels to 8 bits :-(
There is no such thing as -type Scale as far as I know.
convert -list type
will show you all the options for -type
I do not agree that
http://www.imagemagick.org/Usage/formats/#png_formats
is incorrect.
But I don't know how to help you further with changing 12-bits to 8-bits.
Hopeufully Anthony or Magick can help further.
You could also post to the Users forum at
http://www.imagemagick.org/discourse-server/viewforum.php?f=1
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