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2013-01-22 01:13:17 -0600 | asked a question | Question about polar or radial angle calculation in the image coordinate system Hi, I have general questions, not explicitly about OpenCV, but related to image processing: The image coordinate system normally has the x-axis pointing from left to right, and the y-axis pointing DOWNWARDS. However, in math, normally, the y-axis points upwards.
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2013-01-15 23:18:38 -0600 | asked a question | Question about cvLine() Hi, I have a question about the function cvLine. Is there a notion of a specific direction, i.e., the first point is always the "from" point, and the second point is always the "to" point in the argument list of the function? Thanks. |