Openimageio-Tools
- iconvert(1) iconvert -- copy images with format conversions and other alterations
- idiff(1) idiff -- compare two images
- igrep(1) igrep -- search images for matching metadata
- iinfo(1) iinfo -- print information about images
- iv(1) iv -- image viewer
- maketx(1) maketx -- convert images to tiled, MIP-mapped textures
- oiiotool(1) oiiotool -- simple image processing operations