Evgenij-Gr
Evgenij-Gr
/ Mapping from plane coordinates to image pixels
Last active
August 29, 2015 13:57
Suppose that we have an image on the plane, which borders are parallel to coordinate axis. This procedure does the mapping from plane coordinates to pixels of image.
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| #! /usr/bin/python | |
| # We lay sides of image parallel to axi of planes | |
| # Bigger side of image maps to bigger side of rect | |
| # On images we always have X ~ Width, Y ~ Height (it is true for OpenCV) | |
| def PlaneToImage(Point, LTCorner, RBCorner, resW, resH): | |
| assert(not resW==resH) | |
| if (resW > resH): | |
| if (abs(LTCorner[0]-RBCorner[0]) > abs(LTCorner[1]-RBCorner[1])): | |
| OnImgX, OnImgY = 0, 1 |
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