printing symbols onto an image?

Question

I want to ask that how can i add symbols like 'x' or 'o' onto an image permanently?

I know how to write it in a function

figure; imshow(I)
hold on
plot(CentroidTermX,CentroidTermY,'ro','linewidth',2)
plot(CentroidBifX,CentroidBifY,'go','linewidth',2)

but i want to use the resultant image in another file and also in displaying it in a gui but when i use the I as an output argument

function I = detection(X,Y)

it gives the original image without the 'ro' and 'go'. What could be the way to do it?

Help will be appreciated.

Answer 1

There are functions for that in the Computer Vision System Toolbox:

• insertMarker
• insertShape
• insertText
• insertObjectAnnotation