RBX Photo Editor

RBX Photo Editor Online provides a client-side image editing pipeline designed for speed and privacy. Users import images, perform edits in layered canvases, and preview results in real time without uploading data to a server by default.
The tool operates on a layered, non-destructive editing model in the browser, implemented with the canvas API and optional WebGL acceleration. Required features include: import, crop, resize, rotate, exposure and color adjustments, sharpening, and a stack of adjustable layers with masks and blend modes. Optional advanced features include history/undo, presets, selective edits, batch processing, and export quality controls.
Inputs include image file (JPEG/PNG/WEBP), optional project save, and export settings (format, quality). Outputs are edited image files and a portable project state. Validation covers file size limits, supported formats, color space handling (sRGB default), and export quality bounds. Algorithms apply per-channel scaling, gamma correction, white balance, and bicubic resizing; masks perform alpha compositing; layers use common blend modes. Non-destructive history enables reconstruction of the final bitmap from the layer stack.
Error handling covers large files, unsupported formats, and missing inputs; graceful fallback mechanisms retain work and prevent data loss. Industry standards include sRGB color space by default and web-friendly formats; localization is managed at the app level. Assumptions include client-side processing by default with optional cloud export; exclusions cover server-side processing and UI-only considerations.