Thresholding
- intensity threshold ¿¡ µû¶ó gray scale image¸¦ binary image·Î º¯È¯ÇÏ´Â °Í
- ¹°Ã¼¿Í ¹è°æÀ» ºÐ¸®ÇÒ ¶§ ÁÖ·Î »ç¿ë(ÄÄÇ»ÅÍ¿¡°Ô´Â ¸Å¿ì ¾î·Á¿î ÀÏ)
Def] Region
A region is a subset of an image
Def] Segmentation(partitioning of an image into regions)
Segmentation is grouping pixels into regions, , such that
1. Entire image
2.
3. Each region satisfies a predicate; that is, all points of the partition have some common property.
4. Pixels belonging to adjacent regions, when taken jointly, do not satisfy the predicate.
¡Ø PredicateÀÇ ÇÑ ¿¹: uniform intensity.
¡Ø For binary vision, segmentation and thresholding are synonymous.
Thresholding
: original gray scale image
: binary image (: threshold) where
- ¹àÀº ¹è°æ¿¡ ¾îµÎ¿î ¹°Ã¼ÀÎ °æ¿ì
- ¹°Ã¼ÀÇ intensity°¡ »çÀÌ¿¡ ÀÖÀ» ¶§,
- ÀϹÝÀûÀÎ thresholding scheme:
: a se¡¦(»ý·«)
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