Not getting correct vein pattern from image after mophological operation
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Sir, in attached image is output of some morphological operation but still some unwanted region is present how to remove this.
clc; close all; %% myFolder = 'E:\MATLAB\R2016b\bin\img\PCA\my_PhD_Programs\Jermanfilter\db\Train'; roiFolder = 'E:\MATLAB\R2016b\bin\img\PCA\my_PhD_Programs\Jermanfilter\dbROI'; filePattern = fullfile(myFolder, '*.bmp'); dataFiles = dir(filePattern);
for k=1:length(dataFiles), [pathstr,name,ext] = fileparts(dataFiles(k).name); fullFileName = fullfile(myFolder,name); currFile = fullfile(myFolder,name); currFile1 = fullfile(roiFolder,name); fname1 = sprintf('%s.bmp',currFile); fname2 = sprintf('%s.bmp',currFile1); I=imread(fname1); %I = imread('201.bmp');
% preprocess the input a little bit Ip = single(I); thr = prctile(Ip(Ip(:)>0),1) * 0.9; Ip(Ip<=thr) = thr; Ip = Ip - min(Ip(:)); Ip = Ip ./ max(Ip(:));
% compute enhancement for two different tau values %V1 = vesselness2D(Ip, 0.5:0.5:2.5, [1;1], 1, false); V2 = vesselness2D(Ip, 0.5:0.5:2.5, [1;1], 0.5, false);
subplot(2,2,1);
imshow(V2);
title ('Jerman filter');
skel = bwmorph(V2,'thin',Inf);
subplot(2,2,2);
imshow(skel);
title ('thin');
B = bwmorph(skel, 'branchpoints'); E = bwmorph(skel, 'endpoints');
[y,x] = find(E); B_loc = find(B);
Dmask = false(size(skel)); for k = 1:numel(x) D = bwdistgeodesic(skel,x(k),y(k)); distanceToBranchPt = min(D(B_loc)); Dmask(D < distanceToBranchPt) =true; end skelD = skel - Dmask;
subplot(2,2,3); imshow(skelD);
hold all; [y,x] = find(B); %plot(x,y,'ro')
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