Non-Destructive Curves, Levels & Color Grading
Full 32-bit floating point color pipeline with live interactive histograms. Edit individual RGB, Lab, or CMYK channels, create cinematic split-toning, and apply gradient maps with instant real-time GPU feedback.
OmniPhoto lets you grade photos with non-destructive adjustment layers. Curves and Levels evaluate color mathematically in WebAssembly, preventing banding and preserving raw image dynamic range.
How-To Guide
Create Adjustment
Choose Layer › New Adjustment Layer › Curves from the top menu.
Manipulate Curve Points
Click along the diagonal baseline to create control points, dragging upward to brighten or downward to darken.
Target Color Channels
Switch from the Composite RGB channel to Red, Green, or Blue to adjust color casts.
Mask the Adjustment
Paint onto the built-in adjustment mask to restrict the color grade to specific image regions.
Frequently Asked Questions
Does color grading cause posterization or banding in OmniPhoto?
Can I import 3D LUT files (.cube)?
Related Creative Tools
PSD Online Editor & Photoshop File Viewer
Open, edit, and save layered Adobe Photoshop PSD and PSB files directly in your web browser with 100% fidelity.
Professional Photo Retouching & Healing Studio
Remove blemishes, heal skin imperfections, clone textures, and dodge/burn portraits with pixel-level precision.
Multi-Layer Stack & Non-Destructive Masking
Composite multiple images with unlimited layer stacks, raster alpha masks, clipping masks, and live vector paths.