MATLAB: How can i label pixels of contour

contourImage Processing Toolboxpixels

hi, Having a binary image like the attached image which have 3 contours. I need to identify pixels of each contour. So, i want to assign the same label to pixels of each contour. It means that the result image contains 3 contours such that pixels of the first contour have label(=value) equal to 1, pixels of the second one have label 2 and pixels of the last contour have 3. Any suggestion will be appreciated.

thanks !

Best Answer

bwlabel()

Related Solutions

MATLAB: Labelling plot lines akin to contour labels

I don't know any way directly. All I can suggest is to look at contour.m to see if you can make you own. Share with us if you do find a way.

Find this interesting note in contour.m. Might it give you some leads? The function is in clabel.m

%   Thanks to R. Pawlowicz (IOS) rich@ios.bc.ca for 'contours.m' and 
%   'clabel.m/inline_labels' so that contour now works with parametric
%   surfaces and inline contour labels.
t=0:0.1:7;
y=sin(t);
z=cos(t);
plot(t,t,'r',t,y,'g',t,z,'b',t,y+z,'k');
Strings={'line','sin','cos','sin+cos'};
LabelLine(gca,Strings);
function LabelLine(h_axes,LabelStrings)
h_line=findobj(h_axes,'type','line');
n=length(h_line);
for k=1:n;
    XData=get(h_line(k),'XData');
    YData=get(h_line(k),'YData');
    Ind=round(length(XData)/2);
    text(XData(Ind),YData(Ind),LabelStrings{n-k+1});
end

MATLAB: Using ‘pixelLabelDatastore’ to label pixels returns the pixels as

The "label" images in 'labelDir' have more than two unique RGB triplet values. If the right RGB triplets are not selected in 'labelIDs', most of the pixels will be marked as undefined because their RGB triplet values do not correspond to the value specified in pixelLabelDatastore.

You can use IMTOOL to see all the different RGB pixel values in the label image.

Best Answer

Related Solutions

MATLAB: Labelling plot lines akin to contour labels

MATLAB: Using ‘pixelLabelDatastore’ to label pixels returns the pixels as

Related Question