I am using readJPEG function to read a jpeg image which results in an R matrix with values between 0 and 1.
Is there a way to convert these to integer values between 0 and 255?
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Jeru Luke
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Wayne Williams
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1Multiply by 256 and use `ceiling()` to round up? – Gregor Thomas Jan 13 '17 at 01:15
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plus one to @Gregor, but try `ceiling()` :-) – Ben Bolker Jan 13 '17 at 01:16
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Thanks Ben, edited – Gregor Thomas Jan 13 '17 at 01:17
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1I don't know much about colorspaces, but `?rgb` suggests you might want 0 to 255 not 1 to 256. Depends on how you're using it, I suppose. – Gregor Thomas Jan 13 '17 at 01:19