How to determine the size of a face in pixels from an image

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Justin Goh
Justin Goh 2022-9-30
回答： Image Analyst 2022-9-30
I am given an image to load onto matlab. I have to determine the size of each face in the image in terms of pixels (i.e 48x48 pixels). Without using any matlab toolboxs, how could I find the size of the face?
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回答（1 个）

Image Analyst
Image Analyst 2022-9-30
Maybe try drawpolygon to trace the face. Then get the x,y coordinates of what you drew and call polyarea.

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