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comparison python/cvutils.py @ 159:115f7f90286d

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updated calibration-translation and added function to convert point correspondences
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Mon, 12 Sep 2011 16:38:47 -0400
parents 2eef5620c0b3
children b0719b3ad3db
comparison
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158:2d7c6d767a39 159:115f7f90286d
41 #draw.line([p1.x, p1.y, p2.x, p2.y], pen) 41 #draw.line([p1.x, p1.y, p2.x, p2.y], pen)
42 del draw 42 del draw
43 43
44 #out = utils.openCheck(resultFilename) 44 #out = utils.openCheck(resultFilename)
45 img.save(resultFilename) 45 img.save(resultFilename)
46
47 def matlab2PointCorrespondences(filename):
48 '''Loads and converts the point correspondences saved
49 by the matlab camera calibration tool'''
50 from numpy.lib.io import loadtxt, savetxt
51 from numpy.lib.function_base import append
52 points = loadtxt(filename, delimiter=',')
53 savetxt(utils.removeExtension(filename)+'-point-correspondences.txt',append(points[:,:2].T, points[:,3:].T, axis=0))
46 54
47 def computeHomography(srcPoints, dstPoints, method=0, ransacReprojThreshold=0.0): 55 def computeHomography(srcPoints, dstPoints, method=0, ransacReprojThreshold=0.0):
48 '''Returns the homography matrix mapping from srcPoints to dstPoints (dimension Nx2)''' 56 '''Returns the homography matrix mapping from srcPoints to dstPoints (dimension Nx2)'''
49 #cvSrcPoints = arrayToCvMat(srcPoints); 57 #cvSrcPoints = arrayToCvMat(srcPoints);
50 #cvDstPoints = arrayToCvMat(dstPoints); 58 #cvDstPoints = arrayToCvMat(dstPoints);