Dear list members,
I am new to this list but using ImageMagick since a long time. It's
really great software, but since today I have a serious problem:
The dithering seems not to work anymore!
While I am usually compiling IM by myself, there is one machine where
I'm still using SuSE (I know...) and on this machine, until today I used
the Yast2-Package of IM. It was the version 6.2.5.
So today I wanted to check out the "-unique-colors" parameter and
therefore installed the newest version 6.4.0 from source. Everything
seems to work fine so far, but the dithering is not working anymore.
I used the following command:
convert source.png -monochrome dest.png
This resulted in a nicely dithered black&white picture.
The same time, I made a non-dithered image:
convert source.png +dither -monochrome dest.png
This worked fine, too!
With the new version, I get the SAME image in both cases, and I would
say that both are images with no dithering. I do not get the old nicely
dithered image like in the old version 6.2.5.
On the "usage examples", it is said somewhere that "at the moment"
"+dither" does not work with "-monochrome". What does that mean?
Why doesn't dithering work anymore? Did I make a mistake? Do I need any
special parameter when compiling to get the nice old dithering function?
Any help would be very appriciated! Thank you very much in any case!!
Best regards,
Hermann
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