Test Images
===========

The image files in this folder are from the test image set <https://qoiformat.org/qoi_test_images.zip> from <https://qoiformat.org/>

After searching for the images sources, I conclude with the following origins

| image         | src                                                                                                           |
| ------------- | ------------------------------------------------------------------------------------------------------------- |
| dice          | <https://commons.wikimedia.org/wiki/File:PNG_transparency_demonstration_2.png>                                |
| edgecase      | <https://qoiformat.org/>                                                                                      |
| kodim10       | <https://r0k.us/graphics/kodak/index.html>                                                                    |
| kodim23       | <https://r0k.us/graphics/kodak/index.html>                                                                    |
| qoi_logo      | <https://qoiformat.org/>                                                                                      |
| testcard      | <https://fossies.org/linux/zstd/build/single_file_libs/examples/testcard.png>                                 |
| testcard_rgba | derived from testcard?                                                                                        |
| wikipedia_008 | <https://commons.wikimedia.org/wiki/File:Air_Force_Academy_Chapel,_Colorado_Springs,_CO_04090u_original.jpg1> |