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Updated Image formats (markdown)

Chuck Walbourn 2020-06-04 12:59:44 -07:00
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Image-formats.md

@ -40,7 +40,7 @@ The ``JPG`` or ``JPEG`` file format is a lossy compressed image file format comm
# PNG (Portable Network Graphics)
The ``PNG`` file format is a commonly used lossless compressed image file format, which has largely taken over for ``GIF`` in use for general web graphics. See [libpng](http://libpng.org/pub/png/libpng.html) and [Wikipedia](https://en.wikipedia.org/wiki/Portable_Network_Graphics) for more details and history.
# PPM/PFM (Portable PixMap)
# PPM/PFM (Portable PixMap/Portable Float Map)
The ``PPM`` file is an 80s era extremely simple file format that supports RGB values in ASCII or binary format. ``PFM`` is an extension of this format for floating-point RGB values. This format does not support compression or alpha channels, and it's primary utility is for loading some academic-provided image data.
These formats are not generally useful enough to be put into the DirectXTex library, but [[texconv]] supports them for interop with these academic repositories.