Support for HEIFv2 regions (rgan) and user annotations (udes). This enables to annotate regions in the image with several geometric primitives and assign user text descriptions to them. Mask support will be added soon.
Previously, chroma was downsampled and upsampled with a simple nearest-neighbor method. We now included the sharp-yuv chroma downsampling algorithm. This gives improved image quality when images are downsampled to 4:2:0 and upsampled with bilinear interpolation.
The bilinear chroma upsampling and averaging downsampling algorithms are also new. You can choose what to use.
We added experimental support for decoding uncompressed images according to ISO/IEC 23001-17:2023. This is work in progress and currently decoding only.
There are new APIs to query the image transformations. Thus, you may choose to get the original image and apply the transformations yourself.
A longstanding bug writing non-compliant 'ispe' boxes (image size) has been fixed. Files should be standard compliant now.
How to install
Updates may require up to 24 hours to propagate to mirrors. If the following command doesn't work, please retry later:
This update has been submitted for testing by ngompa.
This update's test gating status has been changed to 'ignored'.
This update has been pushed to testing.
This update's test gating status has been changed to 'waiting'.
This update's test gating status has been changed to 'ignored'.
This update has been submitted for stable by bodhi.
This update has been pushed to stable.