Legacy ImageMagick Discussions Archive

Thank You !That is realy good !
This will help very much!

Sorry , no difference.
My thought was that some kind of windowing or LUT took place that changed the pixel values. Like -define dcm:display-range=reset or somethng with LittleEndian or signed/unsigned 16bit with 12bit stored.

The Dicom Image is Greyscale MONOCHROME2.

From dicom standard ...

HI!
Yes I get the same result as You.

I get the same pixel values if i convert with other tools too. But they are for best display for the human eye.

Version: ImageMagick 7.0.7-11 Q16 x64 2017-11-12 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC
License: http://www.imagemagick.org/script/license.php
Visual C++: 180040629
Features: Cipher DPC HDRI
Delegates (built-in): bzlib cairo flif freetype jng jp2 jpeg ...

Hi!
Any help is appreciated
I whant to extract the CT pixeldata for computation.
> convert -compress none CT.dcm CT.pgm
Gives me a .pgm ASCII file that looks like this:
I get 15568(3CD0 Hex) instead of 973(03CD Hex). The Pixel value is not what I expected!
"P2
512 512
65535
15568 15568 15568 ...