A implementation of boxfilter

? ? ? ? ? ? ? ? ?boxfilter 是均值濾波的一種改進。在以下這篇blog里面有介紹。

http://www.cnblogs.com/easymind223/archive/2012/11/13/2768680.html

這里我使用matlab對其進行實現(xiàn)。

可是這里邊界問題沒有處理好，假設viewer有好的意見歡迎告訴我

% % ********************************************************* % code writer : EOF % code file : my_boxfilter.m % code date : 2014.10.21 % e-mail : jasonleaster@gmail.com % % Code description : % Here is my implementation of boxfilter :) % It work correctly in the region where is not close to % the end boundary but will meet problem on some where % close to the image end boundary. % *********************************************************function Filted_Img = my_boxfilter(Image)if size(Image,3) ~= 1fprintf('ERROR Imput-Image must be ##ONE## channel image\n');return;endHeight_Img = size(Image,1);Width_Img = size(Image,2);Buffer = zeros(1,Width_Img);Filted_Img = zeros(Height_Img,Width_Img);% treat this varible as a constantSEARCH_WIN_HEIGHT = 10;SEARCH_WIN_WIDTH = 10;for row = 1: Height_Imgfor col = 1: Width_Imgsum_value = 0;if (row + SEARCH_WIN_HEIGHT) < Height_Imgfor temp = row : (row + SEARCH_WIN_HEIGHT)sum_value = sum_value + Image(temp,col);endelsefor temp = row : Height_Imgsum_value = sum_value + Image(temp,col);end endBuffer(col) = sum_value;endfor col = 1:Width_Imgif (col + SEARCH_WIN_WIDTH) < Width_Imgfor temp = col : col + SEARCH_WIN_WIDTHFilted_Img(row,col) = Filted_Img(row,col) + Buffer(temp);endelsefor temp = col : Width_ImgFilted_Img(row,col) = Filted_Img(row,col) + Buffer(temp);endendendendFilted_Img = Filted_Img./(SEARCH_WIN_HEIGHT * SEARCH_WIN_WIDTH); end

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轉載于:https://www.cnblogs.com/bhlsheji/p/4682760.html

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