Creating a TIFF 16bit image as result of a math expression

[gadenz]

Dear IM users. This is the problem I am facing. I thought it would be possible to solve using IM but so fare I was not able to do it.

I need a TIFF16 for assigning each pixel the elevation value of a Tsunami wave. The real world elevation values are calculated using a math expression acting over pixel values of other three 8 bits images.

I used convert and everithing works fine but the normalisation of the value of the pixel value into the final result. Is there a way to disable the process of normalisation so that the final pixel value reflect the result of the expression?

Any other idea to accomplish this task?

Thanks everybosy

Simone

[fmw42]

Can you be more specific with the steps you are using?

Have you looked at the -fx operator?

What IM quantum number build are you using and have you tried hdri builds?


See


http://www.imagemagick.org/script/fx.php
http://www.imagemagick.org/Usage/transform/#fx
http://www.imagemagick.org/Usage/basics/#depth
http://www.imagemagick.org/script/advan ... lation.php