کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10369441 | 875449 | 2011 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Color impulsive noise removal based on quaternion representation and directional vector order-statistics
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
پردازش سیگنال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Color impulsive noise removal based on quaternion representation and directional vector order-statistics Color impulsive noise removal based on quaternion representation and directional vector order-statistics](/preview/png/10369441.png)
چکیده انگلیسی
A new method for detecting and suppressing impulsive noise in color images is presented in this paper. The proposed method is a type of switching vector filters, where the impulse detection is based on the order-statistic information about the color samples in the horizontal, vertical, and diagonal directions. The new solution first uses quaternion-based representation of color differences and median deviation-based techniques to search for the edge direction with the maximum number of similar pixels, and then utilizes the samples aligning with this edge direction to judge whether the current pixel is noisy or not and control the switching between identity (no filtering) and vector median filtering actions. Extensive experimental comparisons exhibit the validity of the proposed approach by showing significant performance improvements over other well-known color image filtering techniques.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 91, Issue 5, May 2011, Pages 1249-1261
Journal: Signal Processing - Volume 91, Issue 5, May 2011, Pages 1249-1261
نویسندگان
Lianghai Jin, Hong Liu, Xiangyang Xu, Enmin Song,