angle estimation accuracy in C++ cv::phase
In phase documentation is stated:
The angle estimation accuracy is about 0.3 degrees.
Can you explain how that number is computed?
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I am guessing that they use a float percision, which means that a degrees in radian (which is done internally) is rounded. Small differences however when rounding vector dimensions could lead to a change in degrees when using sine and cosine functionality to calculate the angle. This is basic math, that sine and cosine do have rounding errors if you want processing to be fast enough.
