Eye Color Changer

This tool recolors iris regions in photographs by substituting the iris color while preserving lighting, texture, and sclera brightness. It targets portrait editors, retouchers, and creators who want to explore variations without hand-painting. Conceptually, the system masks iris regions, converts color data to a space that separates hue from brightness, and applies the target hue with a luminance-preserving blend to maintain natural shading. Core differentiators include tolerance control, per-eye or both-eye processing, and support for manual masking in advanced workflows. The algorithm minimizes spill into surrounding areas and respects skin tone and scleral brightness for a believable result. The tool is designed for quick previews and batch-ready exports via API, emphasizing reliability and predictable color behavior across different lighting conditions. Use cases include testing creative looks, aligning eye color with branding palettes, and producing consistent portraits across a series where eye color is a visual motif.