[Insight-users] Reading and writing 16bit grayscale images

[Sims Richard (RKB) Clinical Scientist]

Hi

 

I am using the example code ImageReadCastWrite.cxx from /ITK/Examples/IO/ to
read uint16 data in the form of a raw data file and attempting to write a
uint16 dcm file. It appears to work ok but when I attempt to visualise the
contents of the dcm file there is a problem with the pixel values. 

 

I edited the original example code to change the following line:

 

filter->SetOutputMaximum( 255 );

 

to:

 

filter->SetOutputMaximum( 65535 );

 

to ensure that the output is 16bit and not 8bit... but this unfortunately
doesn't change the dcm file - it's the same size and the value remains as
uint8.

 

If I convert the raw data file to uint8 at the very beginning, and leave the
filter maximum at 255, the dcm file looks fine.

 

Can anyone help? Am I missing something simple?

 

Thanks in advance,

Richard.

 

 

 

 

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