Butterworth Bandpass Filter for Image Processing 1.0

Date Added: March 27, 2013 | Visits: 593

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Butterworth Bandpass FilterThis simple function was written for my Digital Image Processing courseat Eastern Mediterranean University taught byAssoc. Prof. Dr. Hasan Demirelfor the 2010-2011 Spring Semesterfor the complete report:http://www.scribd.com/doc/51981950/HW4-Fre...dpass-FilteringWritten By:Leonardo O. Iheme (leonardo.iheme@cc.emu.edu.tr)23rd of March 2011 I = The input grey scale image d0 = Lower cut off frequency d1 = Higher cut off frequency n = order of the filterThe function makes use of the simple principle that a bandpass filtercan be obtained by multiplying a lowpass filter with a highpass filterwhere the lowpass filter has a higher cut off frquency than the high pass filter.Usage BUTTERWORTHBPF(I,DO,D1,N)Exampleima = imread('grass.jpg');ima = rgb2gray(ima);filtered_image = butterworthbpf(ima,30,120,4);

Requirements: No special requirements

Platforms: Matlab

Keyword: Bandpass, Filter, Higher, Image, Input, Makes, Obtained, Order, Principle, Scale

Users rating: 0/10

License: Shareware

Size: 10 KB

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