https://github.com/novomesk/qt-jpegxl-image-plugin
Qt plug-in to allow Qt and KDE based applications to read/write JXL images.
https://github.com/novomesk/qt-jpegxl-image-plugin
imageformats jpeg-xl jpegxl kde qt
Last synced: about 1 year ago
JSON representation
Qt plug-in to allow Qt and KDE based applications to read/write JXL images.
- Host: GitHub
- URL: https://github.com/novomesk/qt-jpegxl-image-plugin
- Owner: novomesk
- License: gpl-3.0
- Created: 2020-11-28T19:17:35.000Z (over 5 years ago)
- Default Branch: main
- Last Pushed: 2025-02-18T15:16:46.000Z (over 1 year ago)
- Last Synced: 2025-03-30T08:09:56.074Z (about 1 year ago)
- Topics: imageformats, jpeg-xl, jpegxl, kde, qt
- Language: C++
- Homepage:
- Size: 3.33 MB
- Stars: 100
- Watchers: 6
- Forks: 8
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# qt-jpegxl-image-plugin
## Table of Contents
1. [Description](#Description)
2. [Installation](#Installation)
3. [Test](#Test)
# Description
Qt plug-in to allow Qt and KDE based applications to read/write JXL images.
Work in progress experimental implementation using [libjxl](https://github.com/libjxl/libjxl)
**kimageformats 5.89** contains almost identical plug-in like this one already. If you have `kimg_jxl.so` installed, don’t install qt-jpegxl-image-plugin. If your distribution maintainer built kimageformats without JPEG XL support, you may install qt-jpegxl-image-plugin. It is not recommended to have `libqjpegxl.so` and `kimg_jxl.so` installed at the same time.
# Installation
### 1. Clone, build and install JPEG-XL
**!Important!** Clone must be `--recursive` to include third party packages
Code for download and compilation:
```
git clone --depth 1 https://github.com/libjxl/libjxl.git --recursive
cd libjxl
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr -DJPEGXL_ENABLE_PLUGINS=ON -DBUILD_TESTING=OFF -DJPEGXL_WARNINGS_AS_ERRORS=OFF -DJPEGXL_ENABLE_SJPEG=OFF ..
make
```
Code for installation (run as root):
`make install`
### 2. Update mime database file
Check if the `image-jxl.xml` file was installed to `/usr/share/mime/packages/` folder and run (as root):
`update-mime-database /usr/share/mime/`
### 3. Build qt-jpegxl-image-plugin
Make sure that the Qt 5 base development packages (`qtbase5-dev` on Debian/Ubuntu) are installed. At least Qt 5.14 is required.
Download and build:
```
git clone --depth 1 https://github.com/novomesk/qt-jpegxl-image-plugin
cd qt-jpegxl-image-plugin
./build_libqjpegxl_dynamic.sh
```
Install (run as root):
`make install`
### 4. Add `image/jxl` to `/usr/share/kservices5/imagethumbnail.desktop`
1. Open `/usr/share/kservices5/imagethumbnail.desktop` with editor of your choise
2. Find line that starts with `MimeType=` and add `image/jxl;` to it's end, so line looks like `MimeType=image/cgm; ... ;image/rle;image/avif;image/jxl;`, save file.
3. Run `update-desktop-database`
# Test
```
cd testfiles
gwenview jpegxl-logo.jxl
```
Expected result:
# Enjoy using JXL in applications
### digiKam
JPEG XL support has to be explicitly enabled in digiKam. Go to Settings -> Configure digikam -> Views -> Mime Types and add `jxl` to the to the Additional image file extensions field:
### KolourPaint
### KPhotoAlbum
### LXImage-Qt
### qimgv
### qView
### PhotoQt
### YACReader
