how to separate/crop certain ROI in my image
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I have problem with cropping certain ROI in my image...For instance, in my attach file, I have a face image in grayscale....so, what I need to do is crop only on a nose area....what is the built-in function or any sample codes that I can use? I believe many people have done a similar work with me but I couldn't find any of them yet...
Please let me know if anyone knows about it..Thank you in advance