VIPS is a small, quick and memory-conservative 2D image processing C and C++ library. It comes with over 300 functions, for arithmetic processing, histograms, convolutions, morphological operations, frequency filtering, colouring, resampling, statistics and others. It supports most common raster image formats (PNG, TIFF, JPEG, FITS, OpenEXR), or chain to ImageMagick/GraphicsMagick.
8.308 Feb 2016 16:45
Add vips_reduce*()... a fast path for bicubic downsize.
Vips_resize() and vips_similarity use it when they can.
Bicubic is better on 32-bit int images.
8.1.011 May 2015 06:25
add vips_premultiply(), vips_unpremultiply().
change the alpha range rules for vips_flatten() to match vips_premultiply().
vipsthumbnail uses vips_resize() rather than its own code.
vipsthumbnail uses vips_premultiply() for better alpha quality.
8.0.206 May 2015 04:05
fix a refcount error in C++ wrapper, thanks huskier.
reomve a couple of stray header decls, thanks benjamin.
8.0.126 Apr 2015 23:45
Fix some compiler warnings.
8.012 Feb 2015 13:45
remove old doc stuff
add fliphor, flipver, rot90, rot180, rot270 convenience methods to
add shift option to cast
better alpha handling for 16 8 bit colour conversions
7.42.308 Feb 2015 17:25
bump version for back-compat ABI change.
added vips_image_memory, an alias for vips_image_new_memory.
improvements to configure for python.
remove --disable-cxx configure flag.
7.42.022 Nov 2014 08:05
Better default resolution for PNG loading.
Better PBM (one bit) load, better PFM (float) import/export.
Fixed bug with vips_gaussblur() parameters.