Adding text labels to opencv image

Question

I have an image in opencv and I want to add labels to the axis. Actually, I want a similar implementation to be executed as xlabel and ylabel matlab functions. How to do this, add labels both in the x axis and in the image axis?

Answer 1

If you have a variable label labelrow the image matrix imgand position xand y, you can do

putText(img, label, Point(x, y), FONT_HERSHEY_PLAIN, 1.0, CV_RGB(0,255,0), 2.0);

Additional options for font attributes.

Answer 2

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