[Insight-users] Getting size of an image in a file

Luis Ibanez luis . ibanez at kitware . com
Thu, 15 May 2003 23:06:59 -0400


Hi Jolinda,

The ImageIOBase class and some of its derived classes
define the following methods:

- GetImageSizeInBytes();
- GetImageSizeInComponents();
- GetImageSizeInPixels();

http://www.itk.org/Insight/Doxygen/html/classitk_1_1ImageIOBase.html

The values are probably valid only after reading
the image into memory.

If you are using the ImageFileReader, you may have to read the image,
then get the ImageIO object from the ImageFileReader and finally query
it using the methods above.


Regards,


    Luis


---------------------
Jolinda Smith wrote:
> Hi all,
> 
> If I want to know the size of an image in a file, do I have to:
> 
> 1. read the image
> 2. get the largest possible region from that image
> 3. get the size of that region
> 
> or is there another way?
> 
> Jolinda Smith
> Lewis Center for NeuroImaging
> University of Oregon
> jolinda@uoregon.edu
> 
> 
> 
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