So sánh phương pháp

	Phân đoạn Watershed	Cân bằng lược đồ mức xám
Lĩnh vực	Thị giác máy tính	Thị giác máy tính
Họ	Machine learning	Machine learning
Năm ra đời	1979	1970s
Người khởi xướng	Serge Beucher and Christian Lantuéjoul	Signal processing community
Loại	Morphological image segmentation	Contrast enhancement and preprocessing
Công trình gốc	Meyer, F. (1994). Topographic distance and watershed lines. Signal Processing, 38(1), 113–125.	Gonzalez, R. C., & Woods, R. E. (1992). Digital Image Processing. Addison-Wesley, 2nd edition, Chapter 3.
Tên gọi khác	Watershed transform, Water shedding segmentation	Histogram stretching, Contrast enhancement
Liên quan	5	5
Tóm tắt	Watershed segmentation is a morphological image processing technique that automatically segments an image into distinct regions by treating image intensity as a topographic landscape where each object corresponds to a valley. Introduced by Beucher and Lantuéjoul in 1979 and refined by Meyer, the watershed algorithm is particularly effective for separating touching or overlapping objects.	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.