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 | 1 | initial version |
Yes, that is true because DFT will generate a matrix of complex numbers with negative and positive values of real and imaginery parts. So when you display, or save to disk as images, that results, you should first call the normalize function to normalize these values to [0..255] ranges (integer-CV_8U) or [0..1] range (CV_23F).
| | 2 | No.2 Revision |
Yes, that is true because DFT will generate a matrix of complex numbers with negative and positive values of real and imaginery parts. So when you display, or save to disk as images, that results, you should first call the normalize function to normalize these values to [0..255] ranges (integer-CV_8U) range (integer, CV_8U) or [0..1] range (CV_23F).(float, CV_23F).
| | 3 | No.3 Revision |
Yes, that is true because DFT will generate a matrix of complex numbers with negative and positive values of real and imaginery parts. So when you display, or save to disk as images, that results, you should first call the normalize function to normalize these values to [0..255] range (integer, CV_8U) or [0..1] range (float, CV_23F).CV_32F).
