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rigidTransform: only four DoF

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combinations of translation, rotation, and uniform scaling equals four degrees of freedom
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Philipp Hasper 2016-06-15 16:41:39 +02:00 committed by GitHub
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modules/video/include/opencv2/video/tracking.hpp
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@ -226,7 +226,7 @@ CV_EXPORTS_W void calcOpticalFlowFarneback( InputArray prev, InputArray next, In
@param dst Second input 2D point set of the same size and the same type as A, or another image. @param dst Second input 2D point set of the same size and the same type as A, or another image.
@param fullAffine If true, the function finds an optimal affine transformation with no additional @param fullAffine If true, the function finds an optimal affine transformation with no additional
restrictions (6 degrees of freedom). Otherwise, the class of transformations to choose from is restrictions (6 degrees of freedom). Otherwise, the class of transformations to choose from is
limited to combinations of translation, rotation, and uniform scaling (5 degrees of freedom). limited to combinations of translation, rotation, and uniform scaling (4 degrees of freedom).
The function finds an optimal affine transform *[A|b]* (a 2 x 3 floating-point matrix) that The function finds an optimal affine transform *[A|b]* (a 2 x 3 floating-point matrix) that
approximates best the affine transformation between: approximates best the affine transformation between: