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description=Halide Compression builds image encoders and measurement tools. Iris-WebP produces files 27% smaller than libwebp at equal quality and speed.;

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halide compression skip to content halide compression about iris blog smaller images better quality halide compression builds image encoders and the tools to measure them our first product iris webp produces files 27 smaller than the reference webp encoder at equal visual quality and equal speed explore iris webp consulting services what we do frontier compression engineering we write encoders we measure them with perceptual metrics and we help teams put the results into production our tuning targets what the human eye sees encoder engineering encoders written from scratch and speed and efficiency work on existing codecs in c zig and assembly perceptual quality we evaluate every change against the best perceptual metrics consulting on site and remote consulting on encoder selection tuning and image video pipelines at scale our product iris webp a webp encoder tuned for the human visual system compared to libwebp the reference encoder iris webp produces smaller files at the same visual quality and the same encode time full results are on the iris webp page 27 smaller files than libwebp at equal cvvdp score and equal speed 13 by ssimulacra2 29 by ms ssim 26 smaller files than libjpeg turbo at equal cvvdp score 24 by ssimulacra2 35 by ms ssim drop in output is standard webp every browser that shows webp today shows iris output unchanged explore iris webp from the blog encoder write ups metric comparisons and interviews with people who work on compression oct 07 2026 introducing iris avif iris avif is our new avif encoder and the best image encoder we know how to build it sets a new frontier for how small a beautiful image can be read more oct 02 2026 introducing wpd faster safer webp decoding for everyone read more sep 05 2026 limitations of perceptual metrics as encoders mature metrics become less valuable read more all posts talk to us we license iris webp and take on consulting work send us a note about your image pipeline and we will reply email us about halide halide compression frontier compression technology for a more beautiful internet site about iris blog privacy policy contact mail halide cx atom feed 2026 halide compression llc all rights reserved