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| ヒストグラム均等化× | 輪郭解析× | |
|---|---|---|
| 分野 | コンピュータビジョン | コンピュータビジョン |
| 系統 | Machine learning | Machine learning |
| 提唱年≠ | 1970s | 1985 |
| 提唱者≠ | Signal processing community | Satoshi Suzuki and Keiichi Abe |
| 種類≠ | Contrast enhancement and preprocessing | Shape and contour analysis |
| 原典≠ | Gonzalez, R. C., & Woods, R. E. (1992). Digital Image Processing. Addison-Wesley, 2nd edition, Chapter 3. link ↗ | Suzuki, S., & Abe, K. (1985). Topological structural analysis of digitized binary images by border following. Computer Vision, Graphics, and Image Processing, 30(1), 32–46. DOI ↗ |
| 別名 | Histogram stretching, Contrast enhancement | Edge-based contours, Boundary analysis |
| 関連 | 5 | 5 |
| 概要≠ | Histogram equalization is an image preprocessing technique that redistributes pixel intensities to improve contrast and visibility of details. By spreading the histogram of pixel values evenly across the available range, histogram equalization enhances images with poor contrast, making features more visually distinct and easier to process algorithmically. | Contour analysis is the process of detecting and analyzing the boundaries of objects in images by identifying connected edges and extracting shape information. The Suzuki-Abe algorithm provides an efficient method for finding contours in binary images, enabling shape-based object classification and segmentation. |
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