Comments (3)
For the Alpha channel, it should already be removed if it not used. If you ever find a picture with an unused alpha channel that is kept after encoding, please open a bug with the image and the selected options so I can check and fix it :)
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Oh wow that's amazing. I didn't know it was easy/possible to autodetect the relevance of alpha channels!
from yoga.
It is easy to know if it is not used at all. For that, you have to look at each pixels: if the value of the alpha channel is 255 it means the pixel is opaque; and if all pixels are opaque, there is no need of an alpha channel :)
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Related Issues (20)
- Add python needs in documentation
- Add Windows compatibility HOT 1
- GUI planned ? HOT 3
- Multithreading support ? HOT 5
- High memory usage during image conversion HOT 3
- [Feature request] progression indicator HOT 6
- Need more documentation about how to locally build Yoga for development work HOT 2
- Inverted normals on a specific model HOT 6
- Fix installation documentation HOT 3
- Error when executed by user that didn't compiledthepackage on ArchLinux HOT 21
- Option to keep metadata
- Add Draco encoder HOT 1
- YOGA Image crashes when an invalid value is present in a JPEG orientation tag
- Optimize outputted meshes with meshoptimizer HOT 3
- JPEG XL support HOT 2
- Cannot open /var/www HOT 2
- Allow to do a lossless jpeg to jpeg optimization using mozjpeg only HOT 2
- JPEG → JPEG optimization: keep the original image if the output image is bigger than the input one
- Keep metadata when optimizing same format HOT 1
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