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ヒストグラム均等化

標準のヒストグラム等化または CLAHE (Contrast Limited Adaptive Histogram Equalization) を使用して画像のコントラストを改善します。 CLAHE はローカル タイルで動作し、不均一に照明された画像でより良い結果をもたらします。

低コントラストの写真、スキャン、CV 入力のヒストグラム イコライゼーションまたは CLAHE を使用して、ローカルおよびグローバルのコントラストを向上させます。

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Frequently Asked Questions

What is histogram equalization?

Histogram equalization redistributes pixel intensities so the histogram spans the full range (0–255). This improves contrast, especially in images that are too dark or too bright.

What is CLAHE?

CLAHE (Contrast Limited Adaptive Histogram Equalization) applies equalization locally on tiles rather than globally. It prevents over-amplification of noise by clipping the histogram, producing more natural-looking results.

When should I use CLAHE vs standard?

Use standard equalization for uniformly lit images. Use CLAHE for images with uneven lighting, shadows, or when you want to preserve local detail without over-boosting contrast.

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