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**Describe the bug**
the file from an old issue from gitlab https://gitlab.com/wg1/jpeg-xl/-/issues/215 seems to be still failing to encode
compressing https://mega.nz/file/gExDAQRI#O52UgV1bpfNLIol0…
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I wrote some code using the encoder API that was accidentally setting the blend mode for the first/only frame to `JXL_BLEND_BLEND`. Under specific conditions, this produces a file that fails to decod…
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**Describe the bug**
When using as input a simple b/w checkerboard pattern the lossless compression is fine. But using VarDCT (default settings) the result shows a good visible 64 by 64 px pattern if…
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### Problem
There are modern formats intended for long-term storage of images that are more efficient (in terms of size) than both JPEG and PNG. Among these, JPEG XL is intended to be the replacement…
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I encountered an image with very poor lossless compression performance in comparison to png.
base - [pingo](https://css-ig.net/pingo) optimized png: 313943
png encoded with imagemagick: 426922
`c…
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**Describe the bug**
From my understanding, in lossy mode, JPEG XL transforms images to the XYB color space. Additionally, the ICC profile embedded within the image is always in the XYB color space…
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For Java/JVM usage, currently, there is only a [JNI wrapper](https://github.com/libjxl/libjxl/tree/main/tools/jni/org/jpeg/jpegxl/wrapper) available for the Decoder. I wish for an Encoder.
Addition…
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These issues or PRs to other crates are needed for `wondermagick`. Each category is roughly ordered by priority.
## Critical blocking issues
https://github.com/image-rs/image-png/pull/488
## …
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Since the format is not yet widely adopted and is finishing up finalizations, this is a placeholder request for later.
The request is to completely support all features of the format, including anima…
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I'm trying to find a good compression ratio for my images
```python
import pillow_jxl
from PIL import Image
original_file='IMG_0058.jpg'
for quality in range(10, 100, 10):
with Image.ope…