gbad

Gaziosmanpaşa Bilimsel Araştırma Dergisi

2146-8168 2146-8168

Tokat Gaziosmanpasa University

Engineering

Mühendislik

Tuz-Biber Gürültüsünde Tekrarsız Medyan Filtre

Erkan

Uğur

Gökrem

Levent

08 31 2017

6 2 11 19 06 08 2017

2012

Journal of Gaziosmanpasa Scientific Research

Buçalışmada lineer olmayan alçak geçiren bir filtre geliştirilmiştir. Bu yeniyöntem yeni piksel değerine, pencere içerisinde piksellerden yeni bir kümeoluşturarak karar vermektedir. Yöntemin gürültü sonuçları tuz-bibergürültüsünde test edilmiştir. Yöntemi karşılaştırmak için Peak Signal to NoiseRatio (PSNR) ve Structural Similarity (SSIM) ölçütleri kullanılmıştır. Yenigeliştirilen yöntem Median Filtre (MF) ve Adaptive Median Filtre (AMF) ilekarşılaştırılmıştır. Karşılaştırma için 18 adet test görüntüsü kullanılmıştır.Örneğin lena görüntüsü için, tuz-biber gürültü yoğunluğu %30 olduğunda MF veAMF’nin PSNR sonuçları 23.32, 25.22 çıkarken yeni yöntemde 31.29 çıkmıştır. Yenigeliştirilen yöntem 18 adet test görüntüsüne ait tüm PSNR sonuçlarında diğeryöntemlerden daha başarılı olmuştur.

Tuz-biber gürültüsü Medyan Filtre Alçak geçiren filtre gürültü azaltma

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