کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
390815 661305 2009 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Efficient impulse noise reduction via local directional gradients and fuzzy logic
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
پیش نمایش صفحه اول مقاله
Efficient impulse noise reduction via local directional gradients and fuzzy logic
چکیده انگلیسی

This paper proposes an efficient noise reduction method for image restoration. A novel pixel classification method by using fuzzy logic and local gradients is first introduced to discriminate noise and noise-free pixels from corrupted images. Then, a switching filtering scheme is employed to noisy images. The noise pixels will be filtered by a weighted median filter with adaptive weights when the noise-free pixels are preserved in the filtered images. Both numerical comparisons and perceptual observations are demonstrated in the experimental simulations. It is found that the proposed method achieves a fairly better performance than a number of other existing methods in noise reduction and image restoration.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuzzy Sets and Systems - Volume 160, Issue 13, 1 July 2009, Pages 1841-1857