[Insight-users] Re: About ITK IO problem

[Luis Ibanez]

Hi zhuyiyang16,

The best way of reading and writing .raw images
is by using the MetaImage approach.  If you need
to read a raw image, you must create for it a
header file with extension .mhd. Please follow
the instructions in the Data web page

     http://www.itk.org/HTML/Data.htm

regarding how to write a MetaImage header.
This is a text file that can be created with
any simple text editor.

The content of a typical header file will look like:

     NDims = 3
     DimSize = 181 217 181
     ElementType = MET_UCHAR
     ElementSpacing = 1.2   1.2   3.4
     Offset = 13.4  27.5  43.2
     ElementByteOrderMSB = False
     ElementDataFile = myImage.raw



Writing a .raw image is extremly simple.
Just pass a file name with extension ".mhd" to
the ImageFileWriter. It will create the header
file with extension ".mhd" and a raw file with
extension ".raw".


You *DONT NEED* to deal with the ImportPointer
in order to read RAW image.


Please read the IO chapter of the software guide


    http://www.itk.org/ItkSoftwareGuide.pdf


Chapter 7, pdf-page 219-240.



   Regards,


     Luis



----------------
?? ? wrote:
> Hello Luis !
> 
>  I met a problem .How to read and write *.raw image ? I have tried with 
> the way with a ImageIO class explicitly ,but I  failed.So how to solve 
> the problem?
> 
> Othermore,when you use a function   concering with  IO ,that is
> void SetImportPointer (PixelType *ptr, Dimension long num, bool 
> LetFilterManageMemory) ,
> if  I use a void* pITKBuffer here, and when to call the 
> SetImportPointer() function, cast  void* pITKBuffer to PixelType* 
> pITKBuffer to fit in the parameter, and then  I set  
> LetFilterManageMemory true,it means ITK do the delete buffer task,so 
> problem comes,I should have delete the buffer as 
> delete[](PixelType*)pITKBuffer,but can ITK do this with a cast to delete 
> the void pointer?
> 
> ¡¡¡¡¡¡¡¡¡¡¡¡Thank you!
> 
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