VIPS 8.15.2

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.

Geeqie 2.3

Geeqie is a free open software image viewer and organiser program for Linux, FreeBSD and other Unix-like operating systems

getNya 2.0

"New nya every time you want." Simple cross-platform java application for downloading pictures from Zerochan.net. You can find images by size or a tag. It's simple. And flat.