image-processing - 画像処理 - 「非最大抑制」と「極大値」

Question

画像処理のテキストでは、非最大抑制として説明されているアルゴリズムがよくあります。私の質問は、極大値を見つけることの違いは何ですか?

Answer 1

Non-max suppression is typically encountered in two contexts: edge detection and local maxima detection.

In the context of edge detection, it refers to a thinning algorithm specialized for images of gradient magnitude.

In the latter context, it is equivalent to local maxima detection in its classical meaning (not morphological minima, etc.), where pixels which are not greater than their neighbors are set to zero.