- use bwselect to select specific blob. Assign pixels value: red - 1, green - 2, blue - 3
- create your own colormap and use it to display colors
In labelled binary image, fill the blobs with different colors defined by me.
3 次查看(过去 30 天)
显示 更早的评论
Hello,
I have this labelled binary image with multiple blobs. I want to fill the labelled blobs with colors defined by me. For example: as shown in image, blobs of label 2,4 and 8, I want them to be filled with green color. Similarly, blobs of label 5,6 and 11, I want them to be filled with red color. Rest blobs should be filled with blue color. I know about label2rgb command but dont know how to do this color filling with label2rgb.
How to do this?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/300723/image.png)
0 个评论
采纳的回答
darova
2020-5-25
I1 = bwselect(I,coord_red); % choose pixels in red group
I2 = bwselect(I,coord_green); % choose pixels in green group
I3 = bwselect(I,coord_blue); % choose pixels in blue group
II = I1*1 + I2*2 + I3*3; % create new image
% create new colormap
cmap = [0 0 0 % black
1 0 0 % red
0 1 0 % green
0 0 1]; % blue
ishow(II,cmap) % display new image with new colors
2 个评论
darova
2020-5-26
Try this simple examlpe
I0 = imread('im1.png');
I1 = im2bw(I0);
cmap = jet(5); % experiment with colormap
II = 0*double(I1);
subplot(211)
imshow(I1)
for i = 2:5
p = ginput(1); % pick point
I2 = bwselect(I1,p(1),p(2)); % select region
II = II + I2*i; % paint region in
subplot(212)
imshow(II,cmap)
end
更多回答(0 个)
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!