how to convert a matrix given in range 5 to 1000 into matrix 0 to 255

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studentambitious
studentambitious le 20 Sep 2016
Commenté : Walter Roberson le 21 Sep 2016
I have a matrix whose values lies in range from 5 to 1000. I want to convert it into he range of 0 to 255. please mention how to revert back to same range of 5 to 1000. please help
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studentambitious
studentambitious le 21 Sep 2016
please reply, can we convert it back to the same matrix range of 5 to 1000...

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Walter Roberson
Walter Roberson le 20 Sep 2016
round( (Matrix - 5) / (1000-5) * 255 )
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studentambitious
studentambitious le 21 Sep 2016
Thanx for the answer it's perfectly ok ,but how can we convert this new matrix back into its original range of 5 to 1000
Walter Roberson
Walter Roberson le 21 Sep 2016
Restored = double(Scaled_Matrix) * (1000-5)/255 + 5;
Note that you lose resolution when you do this: you will not be able to restore to exactly the same as the original.

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