README.md

September 22, 2026 · View on GitHub

A gray mountain rotated 45 degrees clockwise with a lowercase letter j rotated 90 degrees clockwise

IzzyOnDroid Codeberg direct apk Obtainium config

An offline compression artifact remover and denoise application for Android designed with M3E

Models list available here, see examples for how to use them.

Caution

Running for an extended amount of time can make your device run hot, please monitor device temperature

Contributing

Translate: https://translate.codeberg.org/projects/dejpeg

Additional details

If you'd like to use models on PCs (Linux/Mac/Windows), look at chaiNNer (for FBCNN, install this custom node and use PyTorch models from the FBCNN repo).

This app will not be on the Play Store.

For faster processing, the extra releases contain the LiteRT backend which supports .tflite 1x models

building

For onnx-only builds (what's on IzzyOnDroid), run ./gradlew assembleOnnxOnlyDebug

To set up Intel® Oidn Denoising, see oidn/readme.md.

credits and license

This is a GUI for 1x image processing models, used under their respective licenses

DeJPEG v4 and onward is licensed under AGPLv3-or-later with certain components under Apache-2.0

Older versions (v3 and under) are under GPLv3-only.

Credits to @adrianerrea for a starting point, FBCNN and SCUNet creators plus all other model owners.

DeJPEG is not affiliated or related with Topaz DEJPEG or any other similarly named software/project. Although I've wondered if the term 'JPEG' is copyrighted/trademarked due to it literally being the acronym for Joint Photographic Experts Group, for this reason I might need to change the app's name if legal issues start to occur