Histogram Equalization Demo

Overview

The Histogram Equalization Demo improves image contrast by redistributing pixel intensities. View before/after histograms and see how equalization spreads intensities across the full range. Includes adaptive histogram equalization (CLAHE) for local enhancement. Perfect for understanding contrast enhancement techniques.

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Tips

  • Histogram shows distribution of pixel intensities (0-255)
  • Equalization spreads intensities for better contrast
  • Global equalization: operates on entire image
  • CLAHE (Contrast Limited Adaptive HE): operates on local regions
  • Prevents over-amplification of noise with contrast limiting
  • Best for images with poor contrast (too dark or washed out)
  • Applications: medical imaging, satellite images, photography