Hello,
I am planning a web site with thousands of music sheets (grayscale).
To reduce space I tried to make png files with 2 or 4 bits pixel depth.
I experimented a lot with
convert -verbose test.gif -define png:color-type{'3'} -define
png:bit-depth{'2'} -colors 4 test.png
or also
convert -verbose test.gif -define png:color-type{3} -define
png:bit-depth{2} -colors 4 test.png
or
convert -verbose test.gif PNG2:test.png
and many other variants.
I succeeded to get 8-bit and one time black-white, but never 2 - or 4 bit.
Reading the according search results in the nabble forum, it seems, that
this is not supported at all.
I am using ImageMagick 6.5.4-9
Any help would be greatly appreciated
Kind regards and many thanks in advance
Richard
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