1. Improving Document Photo Contrast
When photographing documents with a phone, poor lighting or shadows can make text hard to read. Enhancing contrast and exposure helps restore readability.
2. Local Canvas Filters
Our Photo Enhancer applies brightness, contrast, and threshold filters locally. Increasing contrast isolates black ink from gray shadows, turning camera snaps into clean, high-contrast, scanner-like documents.
2.1 Grayscale Conversion for Text
Converting document images to grayscale removes color noise, improving contrast and making details stand out.