bluescan

An image and texture viewer for tga, png, apng, exr, dds, pvr, ktx, ktx2, astc, pkm, qoi, gif, hdr, jpg, tif, ico, webp, and bmp files. Uses Dear ImGui, OpenGL, and Tacent. Useful for game devs as it displays information like the presence of an alpha channel and querying specific pixels for their colour.

A C++ library implementing linear algebra, text and file IO, UTF-N conversions, containers, image loading/saving, image quantization/filtering, command-line parsing, etc.