4 ms·

Anyone know if it's idempotent? What happens if you run the compression ten times consecutively on one image?

• sdenton4 12y ago
  (Just answered it myself; definitely not idempotent, though on the example images I threw at it, it seemed to converge rather than multiplying artificats and devolving to noise...)
  • duskwuff 12y ago
    "Artificats" makes it sound like errors in the the compression algorithm make felines appear in the image. Come to think of it, given how many cat pictures there are on the Internet, I wonder if there's a place for a compression algorithm tuned for cats (which could make artificats a reality)…
• molf 12y ago
  As you've found out, it's not. We think you get best results by compressing only once, with a source image of enough quality. This applies to both TinyPNG and TinyJPG.