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Why does number of contours differ on picture resolution

Hi all,

Quick question on findContours. I ran findContours on a picture with resolution of 640 x 960 and findContours returned more contours. I resized the same picture to 320x480 and it returned lesser contours.

I'm not sure why is this happening. I would have thought that the resolution is immaterial to findContour.

Any ideas?

Why does number of contours differ on picture resolution

Hi all,

Quick question on findContours. I ran findContours on a picture with resolution of 640 x 960 and findContours returned more contours. I resized the same picture to 320x480 and it returned lesser contours.

I'm not sure why is this happening. I would have thought that the resolution is immaterial to findContour.

Any ideas?