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Suk Tae SEO In Keun LEE Hye Cheun JEONG Soon Hak KWON
Histogram equalization is the most popular method for image enhancement. However it has some drawbacks: i) it causes undesirable artifacts and ii) it can degrade the visual quality. To overcome the drawbacks, in this letter, multi-histogram equalization on smoothed histogram using a Gaussian kernel is proposed. To demonstrate the effectiveness, the method is tested on several images and compared with conventional methods.
Suk Tae SEO Hye Cheun JEONG In Keun LEE Chang Sik SON Soon Hak KWON
An approach to image thresholding based on the plausibility of object and background regions by adopting a co-occurrence matrix and category utility is presented. The effectiveness of the proposed method is shown through the experimental results tested on several images and compared with conventional methods.
Chang Sik SON Suk Tae SEO In Keun LEE Hye Cheun JEONG Soon Hak KWON
We propose a thresholding method based on interval-valued fuzzy sets which are used to define the grade of a gray level belonging to one of the two classes, an object and the background of an image. The effectiveness of the proposed method is demonstrated by comparing our classification results on eight test images to results from the conventional methods.
Soon Hak KWON Hye Cheun JEONG Suk Tae SEO In Keun LEE Chang Sik SON
The thresholding results for gray level images depend greatly on the thresholding method applied. However, this letter proposes a histogram equalization-based thresholding algorithm that makes the thresholding results insensitive to the thresholding method applied. Experimental results are presented to demonstrate the effectiveness of the proposed thresholding algorithm.
Suk Tae SEO In Keun LEE Seo Ho SON Hyong Gun LEE Soon Hak KWON
We propose a simple but effective image segmentation method not based on thresholding but on a merging strategy by evaluating joint probability of gray levels on co-occurrence matrix. The effectiveness of the proposed method is shown through a segmentation experiment.