Photo Curve Editor

Photo Curve Editor is an interactive RGB tone-curve workstation, 3D .cube LUT
color grading studio, and batch photo processor for Linux desktops.
An independent open-source Linux alternative to Lightroom for precision spline tone
curves, color grading, and batch photo processing, it runs 100% locally with exact
256-entry channel lookup tables and standard 3D .cube LUT processing.

Key Features:
- Interactive Spline Tone Curve & Histogram: Draggable multi-point Monotone Cubic
and Catmull-Rom spline editor for Master RGB, Red, Green, and Blue channels with
real-time 256-entry channel LUTs applied via Pillow Image.point(), paired with
a live 256-bin RGB + Luminance histogram and clip analytics.
- Color Grading & .cube LUT Studio: Real-time Exposure, Contrast, Shadows,
Highlights, White Balance (Temperature/Tint), Vibrance, and Saturation controls
with built-in filmic presets (Cinema Teal-Orange, Matte Fade, High-Contrast B&W,
Warm Golden) plus standard .cube 3D LUT and .json preset import/export.
- Batch Folder Grader: Apply the active curve and grading pipeline across folders
of photos with an interactive split Before/After preview and PNG, JPEG, or WebP
batch export.

Disclaimer: Photo Curve Editor is an independent open-source project by TC Studio and is not affiliated with, endorsed by, or sponsored by Adobe Inc..