tx and ty are translation. I think a and d are scale and b and c are some function of rotation. I have videos that are flipped and rotated using arbitrary matrices. How can I make them right-side-up ...
Points 1, 2, 3, 4 originally had irregular ascending y-coordinates, which were transformed and rescaled to an arithmetic progression from -1 to 1 by coordinate-wise ...
A combination of transformations can sometimes be described using a single transformation, eg when a shape is transformed by two consecutive translations, the result can be expressed as a single ...
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