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Re: Function BYTSCL
> Of course you can do by hand something similar what bytscl does:
> lets say your array is 'a'
> (2nd line is 'optional')
when I use the 2nd line, then there is no picture displayed!
if I donīt write this line I see a pic, that is only brighter. There is no
more contrast. :(
> but why you should not use bytarr?
> Only point I can guess is that you have 8bit color and dont want to
> use all colors?
no, itīs an exercise, so that we learn, what BYTSCL does.
I 've a pic and I read it with READ_BMP to get an array. that array I have
to transform to get a better contrast.
but unfortunately without using BYTSCL... :(