Spectra: LCH Adjustment — Perceptual Shaping in JPLog2
A perceptual Lightness, Chroma, and Hue processor calibrated for scene-referred workflows
Spectra: LCH Adjustment brings fine-grain perceptual control to the heart of your image. Built for JPLog2 pipelines, it separates image content into Lightness, Chroma, and Hue—then lets you shape each one independently, with zone-based contrast that responds to tonal regions the way your eye expects.
This is a look development tool, not a correction stage. It refines perception after technical moves and before your creative LUT. Hue rotations stay natural, chroma responds to luminance, and contrast shaping is driven by light, not curves.
Key Features
• Lightness, Chroma, and Hue adjustments in perceptual Lab space
• Independent contrast zones for shadows, mids, and highlights
• Soft rolloff and JPLog2-calibrated pivot points
• Chroma compression in shadows and highlights for realistic behavior
• Designed to refine perception, not override it
Recommended Node Placement
Use after CDL and before RGB reversion for color-accurate toning and perceptual refinement. Ideal for look development inside subtractive pipelines.
Suggested Pipeline
IDT → CMY Negative → Paper Contrast → CDL → LCH Adjustment → RGB Reverter → Look LUT → ODT
Spectra: LCH Adjustment — Perceptual Shaping in JPLog2
A perceptual Lightness, Chroma, and Hue processor calibrated for scene-referred workflows
Spectra: LCH Adjustment brings fine-grain perceptual control to the heart of your image. Built for JPLog2 pipelines, it separates image content into Lightness, Chroma, and Hue—then lets you shape each one independently, with zone-based contrast that responds to tonal regions the way your eye expects.
This is a look development tool, not a correction stage. It refines perception after technical moves and before your creative LUT. Hue rotations stay natural, chroma responds to luminance, and contrast shaping is driven by light, not curves.
Key Features
• Lightness, Chroma, and Hue adjustments in perceptual Lab space
• Independent contrast zones for shadows, mids, and highlights
• Soft rolloff and JPLog2-calibrated pivot points
• Chroma compression in shadows and highlights for realistic behavior
• Designed to refine perception, not override it
Recommended Node Placement
Use after CDL and before RGB reversion for color-accurate toning and perceptual refinement. Ideal for look development inside subtractive pipelines.
Suggested Pipeline
IDT → CMY Negative → Paper Contrast → CDL → LCH Adjustment → RGB Reverter → Look LUT → ODT
