Hi,
I'm considering a binary image from which I extract its edges using cv::Canny. Consequently, I perform cv::findContours, storing all the contours points coordinates in a > vector < vector < Point >>
.
I noticed that the number of pixels (Points) in this structure is greater than the number of pixels I get by computing
> vector white_pixels; > findNonZero(silhouette, white_pixels);
on the same image.
Therefore I'm wondering if this happens because findContours includes duplicate points in its result or because findNonZero is less precise.
E.g. on a 200x200 sample image with the first method I get 1552 points while with the second I get 877.
In case the first hypothesis is correct, is there a way to either ignore the duplicates or remove them?
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