SolStretch v1.3.0 – PCA-based decorrelation stretch for RGB images

SolStretch
SolStretch is a Shiny web application designed to apply decorrelation stretch to RGB raster images (TIFF or JPEG), enhancing visual contrast and improving feature visibility through a PCA-based transformation.

🔍 Ideal for:
Enhancing faint rock art and cave paintings

Highlighting subtle color variations in sedimentary profiles or stratigraphic imagery

🆕 What’s new in version 1.3.0:
✅ Improved package installation process

⚠️ Error handling implemented for image loading and processing

⏳ Processing now includes a progress indicator

🔒 Added validation to ensure high_pct > low_pct

🧭 Cleaner interface with tabs and before/after comparison view

📚 Added a dedicated Help tab with user documentation

🧩 Image processing functions have been modularized

🎛️ Added RGB color channel controls

📸 Interface preview: