OmaPhoto

OmaPhoto is a layered image editor for Linux, made first for Omarchy. It follows your Omarchy theme and switches with it.

It is a Linux port of Compositor by Wonder Assembly, a macOS app written in Swift. Compositor's source is the specification: OmaPhoto keeps its tools, its menus and its shortcuts (Ctrl for ⌘, Alt for ⌥). It reads and writes Compositor's .comp projects, so a project moves between the two apps. OmaPhoto is independent of Wonder Assembly.

What it does

• Layers, folders, masks, clipping masks, blend modes and opacity
• Selections: marquee, lasso, magic wand, load from a layer, expand and contract
• Brush, eraser, spot healing, clone stamp, smudge, blur and liquify, gradient, shapes, type
• Move, transform and distort layers and selections
• Levels, Curves, Hue/Saturation, Exposure, Gradient Map and Grain, as edits or as adjustment layers
• Layer effects: stroke, drop shadow, color overlay, inner shadow
• Filters: Gaussian and motion blur, noise, lens correction, Content-Aware Fill and Remove Background (U²-Net on ONNX Runtime, offline)
• Crop, canvas size, image size; PNG and JPEG export
• Imports JPEG, PNG, TIFF and HEIC

Install

Each script downloads the newest release's package, checks it against the release's SHA256SUMS and installs it with your system's package manager. Packages are built for x86_64.

Arch and Omarchy:

curl -fsSLO https://raw.githubusercontent.com/ZacharyZhang-NY/OmaPhoto/main/scripts/install/arch.sh && bash arch.sh

Ubuntu 24.04 or later, and its derivatives (Linux Mint 22, Pop!_OS 24.04):

curl -fsSLO https://raw.githubusercontent.com/ZacharyZhang-NY/OmaPhoto/main/scripts/install/ubuntu.sh && bash ubuntu.sh

The DEB uses Ubuntu's package names, so Debian itself builds from source (below).

Fedora:

curl -fsSLO https://raw.githubusercontent.com/ZacharyZhang-NY/OmaPhoto/main/scripts/install/fedora.sh && bash fedora.sh

Fedora's own libheif decodes no HEVC. For HEIC import, add RPM Fusion and install libheif-freeworld; the script reminds you.

NixOS installs from the flake into your profile:

curl -fsSLO https://raw.githubusercontent.com/ZacharyZhang-NY/OmaPhoto/main/scripts/install/nixos.sh && bash nixos.sh

Or add github:ZacharyZhang-NY/OmaPhoto as a flake input and put its packages.x86_64-linux.default in your configuration.

The packages themselves sit on the releases page.

Build from source

The build runs in Docker, so the host needs only Docker:

scripts/dev.sh build   # configure and build in Ubuntu 24.04
scripts/dev.sh test    # every test, headless
scripts/dev.sh run     # the app on your Wayland display

By hand: C++20, Qt 6.4 or later (Widgets, Concurrent, image formats), CMake, Ninja, libheif, fontconfig and ONNX Runtime. -DOMAPHOTO_MODEL=path/to/u2net.onnx installs Remove Background's model. scripts/distro-check.sh arch|fedora|nixos builds and tests on those systems.

Licence

MIT, as Compositor is; see LICENSE. Remove Background uses U²-Net (Apache-2.0, licenses/U-2-Net.txt) through ONNX Runtime (MIT). The Ubuntu package carries ONNX Runtime with its notices.