YOGA Image Optimizer

YOGA Image Optimizer v1.2.4 released!

2024-04-08T00:00:00+02:00

YOGA Image Optimizer v1.2.4 was released on this Monday. In this version, the Occitan translation has been completed by a contributor, Python 3.12 is officially supported and Python 3.7 support was dropped. Note that this does not mean that it will stop working on Python 3.7 but it is no more tested and no bug specific to this version will be fixed.

The Windows builds and the Flatpak package have been updated.

Changelog

i18n: Updated Occitan translation (@Mejans, #53)
misc: Added Python 3.12 support (@flozz)
misc!: Removed Python 3.7 support (@flozz)

Screenshots

[bugfix] YOGA Image Optimizer v1.2.3 released!

2023-09-02T00:00:00+02:00

YOGA Image Optimizer v1.2.3 was released today. This version is a maintenance release that fixes a crash that occurs when the locale cannot be determined.

The Windows builds and the Flatpak package have been updated.

Changelog

Bug fix:
- Fixed crash when the system locale cannot be determined (@flozz, #43)

Screenshots

YOGA Image Optimizer v1.2.2 Released With a fix and updated translations!

2022-12-30T00:00:00+01:00

YOGA Image Optimizer v1.2.2 was released today. This version is a maintenance release that fixes a bug that prevented the image list from being properly updated.

This bug affects mostly Linux users that use a distribution released more than one year ago (Ubuntu 20.04, Debian 11,...) and that installed the application from PyPI or from sources. The issue was caused by the use of a Pango markup attribute that was only supported by Pango >= v1.49.0 (released about a year ago).

The Flatpak package and the Windows distribution were not affected by this bug as they are shipped with the right version of the Pango library.

This version also brings updates for the Italian and Spanish translation thanks to @albanobattistella and @haggen88.

Changelog

Bug fix:
- Fixed an issue that prevents the update of the view with older Pango versions (@flozz, #41)
Translations:
- Updated Italian translation (@albanobattistella, #39)
- Updated Spanish translation (@haggen88, #42)

Screenshots

YOGA Image Optimizer v1.2.1 Released With a fix and new translations!

2022-11-22T00:00:00+01:00

YOGA Image Optimizer v1.2.1 was released today.

The previous version introduced an optimization for images preview: on Linux, it used the shared cache to speedup thumbnail generation (read more in the previous article). This optimization was not working with the Flatpak package because it was using its own cache instead of the shared one. This problem is now fixed in v1.2.1.

This version also brings a new Brazilian Portuguese translation thanks to @Kazevic, and the Dutch translation has been updated by @Vistaus.

Finally, YOGA Image Optimizer now officially supports Python 3.11.

Changelog

Fixes / improvements:
- Flatpak: use the real user cache, not the one of the Flatpak application (@flozz)
- Added Python 3.11 support (@flozz)
Translations:
- Added Brazilian Portuguese translation (@Kazevic, #36)
- Completed Dutch translation (@Vistaus, #34)

Screenshots

YOGA Image Optimizer v1.2.0 Released With an Improved Interface and More!

2022-10-20T00:00:00+02:00

YOGA Image Optimizer v1.2.0 is out! This version brings an improved interface and more generally a better user experience.

Improved Interface

The YOGA Image Optimizer interface has been reworked to be more compact and less bloated. Let's see the changes.

Header Bar

First, the header bar. There is not too much to see here, the [+] and [–] buttons have been linked together and the vertical bar between them and the "Remove all" button has disappeared.

Image List

The image list part has more changes. The first one is that some columns have been merged. So the "Input Image" and the "Output Image" columns are now one, and the same goes for the "Status" and "Output Size" column as the status is no more needed once the optimization done. To merge multiple informations in one column, we now use multi-line texts along with font styles (font size and font weight) to keep this readable.

The refactoring of the image list was also the occasion to bring some improvements. You can now double-click on a row to open the associated input image, and when the output image is larger than the input one, a warning icon is added to signal it:

Output Options and Transformations

Finally, the output options section at the bottom of the window has been reorganized. The "basic" output options (image format and output file) has been separated from the "transformation" options. This makes the interface less bloated and will allow adding more transformation options in the future without having a too loaded interface.

Images Preview

A lot of work has been done on image preview in this version.

Before, when you drag-and-dropped a bunch of photo on YOGA Image Optimizer, it froze until all thumbnails were generated. Now, thumbnail generation is asynchronous so the application interface is no more frozen during image importation.

The thumbnail generation has also been sped up for Linux users. When you browse your folders with your favorite file browser (Nautilus, Dolphin, Thunar,...) or when you open an image in some software like GIMP, a thumbnail is generated and placed in a shared cache (generally located in ~/.cache/thumbnails/). YOGA Image Optimizer is now aware of this mechanism and will use the already generated thumbnails from it every time it is possible. This avoids a lot of useless computation and makes the preview loading almost instantaneous!

Download the video

Asynchronous thumbnail loading. The thumbnail generation was slowed down for the video.

Better Error Handling

In previous versions of YOGA Image Optimizer, a broken image (invalid rotation metadata, truncated or corrupted file,...) could crash the image import and optimization processes. This is now fixed. If a thumbnail cannot be generated, it is replaced by a "broken image" icon instead.

And if an error occurs during the image optimization (because of a broken image, a permission issue for the output file, a lack of memory,...), this does not crash the whole process anymore. The error is simply reported in the "Output Size" column.

Note

NOTE: there is currently no way to get the precise error from the graphical interface but errors are logged in the console.

Changelog

Interface / User Experience:

More compact and less bloated interface (#17)
Allow opening input images in the default image viewer by double-clicking on them
Asynchronous generation and loading of thumbnails to not freeze the interface when importing a lot of images (#26)
Sped up thumbnail loading on Linux by using already generated thumbnails from the shared cache
Sped up thumbnail generation using BOX sampling instead of LANCZOS
Displayed a warning icon if the output image is larger than the input one

Bugfix / Code Improvement:

Fixed a crash when generating thumbnails for JPEGs with an invalid orientation EXIF tag (#29)
Fixed inverted width and height with rotated JPEGs
Fixed a crash of the image import process when generating the thumbnail of a broken image (#27)
Fixed a crash of the optimization batch if an error occurs when optimizing an image (#27)
Fixed issues related to concurrent.futures on Python 3.7 and 3.8 (#32)
Updated the code to not use deprecated constants on newer Pillow versions
Various typo fixed (@kianmeng, #31)

Translations:

Dutch translation (incomplete) (@Vistaus, #25)
German Translation (Jürgen Benvenuti)

Screenshots

YOGA Image Optimizer v1.2.0 main view with output options

YOGA Image Optimizer v1.2.0 main view with transformation options

YOGA Image Optimizer v1.2.0 optimization in progress

YOGA Image Optimizer v1.2.0 settings

YOGA Image Optimizer v1.1.2 Released With New Translations!

2022-09-12T00:00:00+02:00

YOGA Image Optimizer v1.1.2 adds Russian and Spanish translations. Turkish translation has been fixed and completed. A big thanks to all contributors!

To make YOGA Image Optimizer simpler to translate, I am trying the POEditor platform that offers a nice web interface to translators. With POEditor, there is no more need to handle .po files manually nor to use Git.

If YOGA Image Optimizer is not available in your language, please help translate it:

First read the contribution section of the README here:
- https://github.com/flozz/yoga-image-optimizer#translating-yoga-image-optimizer
Then join the project on POEditor and start translating:
- https://poeditor.com/join/project/RoQ2r9rv89

Of course, you can still edit .po files with your favorite editor and open a pull request on Github if you prefer the traditional workflow. 😉️

Do not hesitate to open an issue or to join the Discord if you need help, if you have a question or to give me any feedback about POEditor. 🙂️

Changelog

New translations:
- Spanish
- Russian
Updated translation:
- Turkish

Screenshots

[Bugfix] YOGA Image Optimizer v1.1.1 released!

2021-09-29T00:00:00+02:00

YOGA Image Optimizer v1.1.0 introduced a bug that causes a huge amount of process to be created (and never cleaned) while starting an optimization batch. This is now fixed in YOGA Image Optimizer v1.1.1.

For more information, please read the Github issue #13.

Changelog

Fix the abnormal amount of processes created (and not cleaned) when starting an optimization (#13)

Screenshots

YOGA Image Optimizer v1.1.0 Released: Improved JPEG Optimizations, Resize, Multiselection, Settings,...

2021-09-06T00:00:00+02:00

YOGA v1.1.0 and YOGA Image Optimizer v1.1.0 were released today with a lot of improvements.

Main Changes

Improved JPEG Optimizations

In the v1.0.0, YOGA relied only on Guetzli to optimize JPEGs. Now it also uses some optimization from MozJPEG to improve the compression. Thanks to this, JPEGs are now from 2.4 % to 7.3 % smaller, without additional quality loss.

YOGA v1.0.0 vs v1.1.0 on JPEG optimization

This version also adds support for JPEG orientation metadata to avoid having the image wrongly rotated after being processed by YOGA.

Image Resize

YOGA Image Optimizer now allows to resize images. Please note that it can only reduce images' sizes, and that it will always preserve the ratio.

Multiselection / Batch Edition

The multiselection was a highly asked feature, so it is now possible to select multiple images and change their property at the same time.

Multiselection demo

Settings

YOGA Image Optimizer is now configurable. You can now

set how many threads to use for optimizations,
select your favorite GTK theme (mostly useful on Windows),
and choose the default name of output files.

Settings window

Changelog

YOGA updated to v1.1.0:
- Honor the JPEG orientation EXIF tag
- JPEG optimization improved: up to 7.3 % of additional size reduction since previous version.
- YOGA can no more output a PNG larger than the input one when performing a PNG to PNG optimization
Settings were added:
- Theme selection / dark theme preference
- Number of threads used to optimize images
- Setting the default output locations / name or pattern of output files
"Optimize" and "Stop" buttons behavior improved:
- The "Stop" button now stops the running optimizations and not only the pending ones
- Display a "Canceled" status on non-optimized image while the "Stop" button is clicked
- Do not optimize again images that have already been optimized
Allow to resize images (downscale only, preserve ratio)
Multiselection: Multiple files can now be selected and their parameters can be edited all at once
Bug fix / improvements:
- Do not allow to remove images with the <Del> key while an optimization is in progress
- Fix image previews: no more ugly thumbnails with indexed images
- Image previews now honor the JPEG orientation EXIF tag
Windows specific changes:
- Use the Adwaita theme by default on Windows as the "Windows10" GTK theme looks buggy
Translations updated:
- French
- Italian (partial)
- Occitan
- Turkish (partial)
NOTE for packagers:
- YOGA >= 1.1.0 is now required
- YOGA v1.1.0 requires a new dependency: mozjpeg-lossless-optimization

Screenshots

YOGA Image Optimizer v1.1.0 main window

First YOGA Image Optimizer Version (v1.0.0) Released!

2021-06-11T00:00:00+02:00

Today, the first stable version of YOGA Image Optimizer was released. As, this software is brand new, there are some limitations and missing functionalities in this first version, but this will be improved in future releases.

Optimizations

YOGA Image Optimizer allow you to batch convert / optimize your images. It supports most format as input, and can output optimized JPEGs, PNGs and WebPs.

JPEG

YOGA reduces the weight of the JPEGs from -9 % to -45 % (-27 % in average). The optimization is done by (re)encoding the images with Guetzli. The JPEG optimization will be improved further in future releases.

JPEG file reduction on a selection of images

PNG

YOGA reduce the weight of the PNGs up to -75 % (about -20 % in average). The PNG optimizations are done losslessly by the ZopfliPNG library.

PNG file reduction on a selection of images

WebP

YOGA also optimize WebP images but there still a lot to do on this format. There is for now no much gain using YOGA instead using directly cwebp / libwebp, but converting JPEG to WebP and PNG to lossless WebP is very effective to reduce file sizes.

JPEG vs WebP / PNG vs lossless WebP

Benchmark

If you are interested about the image used for the benchmark and the methodology, you will find everything on Github:

https://github.com/flozz/yoga-image-benchmark

You will find more details about this benchmark on my blog (in French):

https://blog.flozz.fr/2021/06/14/optimisez-vos-images-avec-yoga-image-optimizer/

Known Issues

The "Stop" button only cancel future optimization but not the running ones (this is a limitation of the used Python APIs, this will be improved in the next release).
On Windows, the close, maximize and minimize buttons are black on black in the dark version of the "Windows10" GTK theme.

Changelog

Here is the complete changelog, including the ones of the beta versions.

v1.0.0:
- Fix [-] button do not remove selected image
- Update site URL
v0.99.2 (beta):
- Fix package data not installed while installing with pip (#3)
v0.99.1 (beta):
- Fix site URL in setup.py
- Fix version number
v0.99.0 (beta):
- Initial release
- Linux and Windows support
- Optimizes PNG, JPEG and WebP image formats

Screenshot

YOGA Image Optimizer v1.0.0 main window