[Insight-users] 3D Resampling

[Luis Ibanez]

Hi Kevin,

Is this a typo in your email ?


 >> Spacing (or in ANALYZE, Size) (mm):  x = 0.01, y = 0.01, z = 0.00


or
do you *really* expect the Z spacing of your 3D dataset to be NULL ?!!


If that's the actual spacing in your dataset, that can easily be
the source of the problems that you are experiencing.


  Please let us know,


    Thanks


       Luis


=======================
Karthik Krishnan wrote:
> Hi Kevin
> 
> I would first check if you can read your Analyze file. (There have been 
> reports in the past of certain Analyze files not being read in correctly).
> Use InsightApplications/ImageViewer to open your Analyze file and check 
> if you see what you expect to see.
> 
> bye
> -karthik
> 
> Kevin Ming wrote:
> 
>> Hi,
>>
>> I'm trying to rigidly transform some 3D image data for test in 
>> registration, but can't seem to figure out what kind problems I'm 
>> running into:
>>
>> 1)  The program only seems to resample the 1st out of a total of 12 
>> slices from my 3D image, all other slices are just a repeat of the 
>> first slice.  I tried playing around with spacing[2] = x for Dimension 
>> = 3 where x is any value greater than 0, but instead the program would 
>> give me every slice other than the 1st one black.
>>
>> 2)  Also, all the output images seem to give me really high brightness 
>> and contrast values.  For example my original images have brightness = 
>> 2204933.4355 and contrast = 4277002.0027, and the output would be 
>> brightness = 44324303030.1732 and contrast = 9999999.0000.  Does this 
>> have to do with the fact that I changeed the InputPixelType and 
>> OutputPixelType to float?
>>
>> In generally I think it's my spacing and maybe origin values that are 
>> creating these problems, so here are what I think they should be:
>>
>> Spacing (or in ANALYZE, Size) (mm):  x = 0.01, y = 0.01, z = 0.00
>> Origin (same name in ANALYZE) (vxl):  x = 0.00, y = 0.00, z = 0.00
>>
>>
>> Thank You,
>> Kevin
>>
>> ------------------------------------------------------------------------
>>
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