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Question
Hello everyone, How can I measure the width of a vessel between two intersection?
The attached file is the segmented image. I extracted the intersection as the nodes of a graph and now I wanted to measure the c...
7 years ago | 0 answers | 0
0
answersQuestion
How can I draw link between two nodes which are extracted from retinal vessel network.
The attached file is the plot of nodes. Thanks much for your help
7 years ago | 0 answers | 0
0
answersQuestion
I have a retina fundus image and wanted to extract the skeleton of vessels. But as it can be seen in the image I have a circle boundary around the vessels! How can I get rid the circle?
How can I get rid of the white circle around the vessel network?
7 years ago | 0 answers | 0
0
answersQuestion
I want to subtract (or extract or crop?!!!) a certain part of image and display the result(mean original image minus the extracted part). In my program I2 is the extracted part and I is original image. I need I-I2? Thanks much
The goal is extracting the optic disc from retinal image: I = imread('cameraman.tif'); [I2, rect] = imcrop(I); figure, imsh...
7 years ago | 0 answers | 0
0
answersQuestion
I wanted to extract the intersection in the retinal vascular network(centerlined image), but in one section I have more than one point! how can I modify the code to reach just one point for each intersection? Thanks very much for your help
This is my code: (Attached file is the input of this code.) out= imread('image12.tif'); A=im2double(out); imwrite(A,'...
7 years ago | 2 answers | 0
2
answersQuestion
How can I divide a binary image to some 25x25 size images?
Thank you!
7 years ago | 1 answer | 0
1
answerQuestion
I have a binary image and wanted to find a whit pixel and crop a window size 25x25 around that which the selected white pixel be the center of window...
Thanks very much in advance for your help
7 years ago | 0 answers | 0
0
answersQuestion
For each X point in the attached image, I want to generate an image patch by 25x25 square window, with the annotated coordinates as the center. Would you please help me? thanks very much
Please let me know if you need more explanation.
7 years ago | 2 answers | 0
2
answersQuestion
I wanted to extract intersection in the retinal vessels. This is my code which extract several number of pixels in one intersection! How can I merge them to just one pixel? Thank you for your help in advance :)
out= imread('image12.tif'); A=im2double(out); B= [1 1 1; 1 0 1;1 1 1]; cc= conv2(A,B,'same').*(A==1); ...
7 years ago | 0 answers | 0
0
answersQuestion
I have a matrix A=[1 0 1 1;0 0 1 0; 0 0 1 0; 0 0 0 0] and I wanted to count the neighbor with value one of each pixel with value one. So I need to reach this result: result=[0 0 2 2;0 0 2 0;0 0 1 0;0 0 0 0]. I will be appreciated for your help.
I know that function 'conv2' can count the neighbors with value one but it counts the neighbors of all pixel. I need only count...
7 years ago | 1 answer | 0
1
answerQuestion
This is my code for extracting the intersection on the centerlined retinal image, I wanted to remove the border( the circle around the vessel network) of this image. Is there anybody to help me ? Thanks very much
out= imread('image12.tif'); A=im2double(out); B= [1 1 1; 1 0 1;1 1 1]; cc= conv2(A,B,'same'); [r,c]= find(cc...
7 years ago | 0 answers | 0
0
answersQuestion
I extracted some points from a binary image and now I wanted to detect that is there any link(edge) between them. How can I do that in MATLAB? Thanks very much for your help
A = im2double(I5); B = [1 1 1; 1 0 1; 1 1 1] ; cc = conv2(A, B, 'same'); [r, c] = find(cc > 3); imshow(I5); scatter...
7 years ago | 1 answer | 0
1
answerQuestion
I need to detect the pixels with more than 2 neighbors with value 1, Based on my code the image and point(x) are not exactly aligned and I cannot to save the result! is there anyone to help me? Thanks very much
A = im2double(I5); B = [1 1 1; 1 0 1; 1 1 1] ; cc = conv2(A, B, 'same'); [r, c] = find(cc > 3); imshow(I5); text(...
7 years ago | 1 answer | 0
1
answerQuestion
Hi, I am a beginner in MATLAB and wanted to count the number of neighbors with value 1 for each pixel which included value one in binary image... The target is to point out the pixels which are included value 1and their neighbor with 1 is >2 ?
A= [ 0 0 0 0; 0 1 1 0 ; 0 0 1 0;0 0 0 0 ]; % BW= imread('19-test-bin.tif'); % CC = bwconncomp(BW,4) %fh=fopen('re...
7 years ago | 2 answers | 0