[Insight-developers] Function to check if images have the same information

[Matt McCormick]

On Wed, Nov 16, 2011 at 8:52 PM, Bradley Lowekamp
<blowekamp at mail.nih.gov> wrote:
> Hello Matt,
> I think you are thinking of ImageToImageFllter::VerifyInputInformation.

Yes!  Thank you, Brad.

Matt

> Brad
>
> ========================================================
>
> Bradley Lowekamp
>
> Medical Science and Computing for
>
> Office of High Performance Computing and Communications
>
> National Library of Medicine
>
> blowekamp at mail.nih.gov
>
> On Nov 16, 2011, at 6:46 PM, Matt McCormick wrote:
>
> Hi Cartik,
>
> Thanks for your response, but I think you may have misunderstood my
> question -- I am not looking for a mathematical function to compare
> the content of two images.  I am looking for a coding function to
> compare what in ITK is often called the data Information, the Origin,
> Spacing, Direction matrix, starting Index -- the metadata that
> determine the physical location of a given pixel index.  Filters like
> the BinaryFunctorImageFilter assume that these are the same.
>
> Thanks,
> Matt
>
> On Wed, Nov 16, 2011 at 6:30 PM, Cartik Sharma <cartik.sharma at gmail.com>
> wrote:
>
> Dear Matt,
>
> The Normalized cross correlation computed for pixel intensity values can
> allow for image comparison. Please refer thread..
>
> http://www.sterlinglifesciences.com/slsjob.asp?jid=8232&id=7
>
> Best regards,
>
> Cartik
>
> my iPhone
>
> On 2011-11-16, at 6:15 PM, Matt McCormick <matt.mccormick at kitware.com>
> wrote:
>
> Hi,
>
> I think the was some discussion about this a while ago, but is there a
>
> convenience function that checks where two images have the
>
> information?
>
> There are algorithms that assume correspondence between the physical
>
> location of image pixel indices.  That is, the origin, spacing,
>
> direction matrix, and LargestPossibleRegion are the same.  Is there a
>
> function that can check this?
>
> I see itkIsSame.h, but that only checks if the pixel types are the same?
>
> Thanks,
>
> Matt
>
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