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How to process bmp pictures with libvips #1528

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LebronCurry opened this issue Jan 15, 2020 · 5 comments
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How to process bmp pictures with libvips #1528

LebronCurry opened this issue Jan 15, 2020 · 5 comments
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@LebronCurry
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For example:
vipsthumbnail test.bmp -s 200x200 -o out.jpg
But it is not available now.
@jcupitt
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jcupitt commented Jan 15, 2020

Hello, libvips uses ImageMagick to load BMP files. It should work, as long as you have IM enabled.

@LebronCurry
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Hello, I use this command to compile:
./configure --with-magickpackage=GraphicsMagick
Then display:
Magick package: GraphicsMagick
Magick API version: magick6

But still not:
vipsthumbnail: unable to thumbnail 0002.bmp
VipsForeignLoad: "0002.bmp" is not a known file format

@jcupitt
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jcupitt commented Jan 15, 2020

I guess there's something strange about GraphicsMagick. I'll have a look.

jcupitt added a commit that referenced this issue Jan 15, 2020
@jcupitt
improve imagemagick init
fc9edfe 
graphicsmagick, in some configurations, needs to be told to init the
various loaders.

Thanks @LebronCurry

See #1528
@jcupitt
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jcupitt commented Jan 15, 2020

It seems GM needs to be told to init the various loaders, at least in some configurations.

It seems to work for me now. This improvement will be in 8.9.1.

Thanks for reporting this!

@LebronCurry
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Ok,thank you for your answer.

@jcupitt jcupitt closed this as completed Mar 10, 2020
@jsinge jsinge mentioned this issue Apr 4, 2024
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@jcupitt @LebronCurry