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What is the range of double??

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Ashish Jain
Ashish Jain 2013-6-3
Is it necessary to convert the uint8 data type to double for processing any image??

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回答（3 个）

David Sanchez
David Sanchez 2013-6-3
A colour image has to be < height x width x 3 > uint8 matrix.
Iain
Iain 2013-6-3
No.
Some image processing functions will need it to be converted.
The range of double is plus and minus 0, 10^-318 to 10^318, with about 16 significant figures.
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Jan
Jan 2013-6-3
编辑：Jan 2013-6-3
But the range used for color images is from 0 to 1 inclusively. Therefore there is no strong relation between the question and this correct statement.

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Jan
Jan 2013-6-3
It depends on the detail hidden in the term "processing". A lot of functions work with UINT8 also, but some don't.

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