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Questions tagged [libvips]

7 questions
1
vote
1 answer

Resize animated .webp using libvips / golang

I have a Go program where I want to take an animated .webp image, resize it and then write it to .webp again. This worked flawlessly using imagemagick: exec.Command("magick", tmpWebPFile, "-quality", "70", "-resize", resizeStr, "-layers",…
estrar
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1 answer

vips: unknown action "dzsave"

Ok, I am feeling rather stupid right now... I have installed vips on my windows computer from https://github.com/libvips/build-win64-mxe/releases/download/v8.14.2/vips-dev-w64-all-8.14.2.zip Extracted it and typed vips dzsave from with in the bin…
Gina Marano
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Can I get a list of required packages to install libvips, libvips-dev, libvips-tools for version 8.14.4?

I'm trying to install libvips (https://github.com/libvips/libvips/releases/tag/v8.14.4) on a alpine distribution of Linux. Can I please get help with list of required packages? I want to get https://github.com/h2non/bimg working on my golang project…
Sanchit Kulkarni
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1 answer

Efficient "bandmax" function in pyvips?

I'm looking for a way to efficiently find the band that has the maximum value in a large multi-band image. For example if we had an image that looked like band 1 band 2 band 3 [1 2 3] [3 4 5] [0 1 2] [3 2 1] [1 2 3] [1 0 1] [4 5 6] [6 7 5] …
matth
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How to convert 16 bit grayscale image to 8 bit using linear mapping with libvips

I would like to convert a 16 bit grayscale image to 8 bit, where the lowest value of the 16 bit image becomes 0, and the highest becomes 255 As far I can see, I can call vips-hist-norm, which will map it across the full 16 bit range. However its…
Red Riding Hood
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How to package vips for distribution?

I am trying to package the vips repository for distribution so I can double-click on it and install it on any Mac OS version. On Windows, this is easy - I just have to put the folder containing the binaries in the package. For Mac OS, I need to…
Prasad
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Install libvips on golang docker container

How to install libvips on a docker container.
binrebin
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