A Rust implemention of the “Quite OK Image” format for fast, lossless image compression.
See Phoboslab's original C implementation for more details.
License
Apache-2.0 OR MIT.
To do
- Add tests for decoding using 3 and 4 channels where the source has the opposite number of channels.
- Include benchmarks for the C implementation
- More tests
Generating test images
You'll need to build the C qoiconv utility with this hack applied:
diff --git a/qoiconv.c b/qoiconv.c
index 6e7ad36..c91d2e0 100644
--- a/qoiconv.c
+++ b/qoiconv.c
@@ -84,7 +84,12 @@ int main(int argc, char **argv) {
.channels = channels,
.colorspace = QOI_SRGB
});
- }
+ } else if (STR_ENDS_WITH(argv[2], ".raw")) {
+ encoded = 1;
+ FILE* fp = fopen(argv[2], "wb");
+ fwrite(pixels, w * h * channels, 1, fp);
+ fclose(fp);
+ }
if (!encoded) {
printf("Couldn't write/encode %s\n", argv[2]);Copy it to cqoiconv
Download https://phoboslab.org/files/qoibench/images.tar
Run ./create_tests.sh <path to images.tar>