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Rotation-Based Compression
ckground In the late 19th to mid 20th century, the United States Department of Agriculture hired dozens of artists to paint watercolors of every fruit that grows in the United States. The collection contains 7,497 watercolor paintings, 87 line drawings, and 79 wax models created by approximately 21 artists.
I thought this would make a great set of images to choose a random photo every day to use as my desktop wallpaper. I believe there’s either some minor compression happening related to the Discrete Cosine Transform or a lossless saving from the Huffman Encoding, but I’m not 100% confident on either option. The final thing I noticed is that this method seems particularly effective on the set of images that are stored in a significantly higher quality than most other JPEGs, so that’s worth considering as well.
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