I have a problem with log while implementing vague shadow mask but the R component is already in uint8.

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Aiswarya Krishnan
Aiswarya Krishnan 2016-2-25
回答： Titus Edelhofer 2016-2-25
r=log®; Undefined function 'log' for input arguments of type 'uint8'.

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Titus Edelhofer
Titus Edelhofer 2016-2-25
Hi,
you need to convert back to double:
r = log(double(r));
If you afterwards go back to uint8 (which probably makes little sense), then use uint8 to convert.
Titus

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