How to print regionprops properties on image?

Dear All,

I want to print each labeled region area on the image it self? I calculated label matrix and regionprops matrix using area.

g=regionprops(LB,'Area');

>> g(19) 
ans = 
    Area: 166

Then I want to print these area on image it self. (pixel width is 0.07).

Like this picture.

Thanks for helping

Regards

Chamara

Answer 1

[Walter Roberson]

Does the label need to go in the image, or can it go over the image?

If it can go over the image, then as well as asking for the regionprops Area, also ask for the Centroid, and then text() the Area to the location given by the Centroid. text() will draw over the image.

If you need to create a new image that has the text "burned in" then if you have the Computer Vision Toolbox then there is a insertText() function, or you can use the older Vision.TextInserter for now.

[sacprasanna]

Thanks Walter, I want code over the image. I rewrite code according to your tip.

Pro=regionprops(Lb,'Area','Centroid');

figure,imshow(Original),

for cnt = 2:length(Pro)

text(Pro(cnt).Centroid(1),Pro(cnt).Centroid(2),num2str(Pro(cnt).Area*0.07*0.07),'FontSize',5,'color','red');

end