[ITK] How to get to get image similarity metrics under .NET ?

[Oleg Subachev]

Hello Dan:

1.png and 2.png are of exactly the same size: 397 x 959 pixels of 24 bit color.

--
Best regards,
Oleg Subachev

On Thu, Nov 19, 2015 at 1:14 PM, Dan Mueller <dan.muel at gmail.com> wrote:
> Hi,
>
> The error message seems to suggest 1.PNG and 2.PNG are differing sizes.
> Perhaps you could crop one of the images so they are equal sizes...
>
> Good luck, Dan
>
> On 19 Nov 2015 5:32 pm, "Oleg Subachev" <osubachev at gmail.com> wrote:
>>
>> Thanks all of you.
>> But now the code:
>> using ( ImageRegistrationMethod method = new ImageRegistrationMethod() )
>> {
>> method.SetMetricAsMattesMutualInformation();
>> double metric = method.MetricEvaluate(
>> SimpleITK.ReadImage( "1.png", PixelIDValueEnum.sitkFloat32
>> ),SimpleITK.ReadImage( "2.png", PixelIDValueEnum.sitkFloat32 ));
>> }
>>
>> throws new exception:
>> {"Exception thrown in SimpleITK
>> ImageRegistrationMethod_MetricEvaluate:
>>
>> ..\\..\\..\\..\\..\\SimpleITK\\Code\\Registration\\src\\sitkImageRegistrationMethod.cxx:922:\nsitk::ERROR:
>> Unexpected error converting initial transform! Possible miss matching
>> dimensions!"}
>>
>> --
>> Best regards,
>> Oleg Subachev
>>
>>
>> On Wed, Nov 18, 2015 at 8:14 PM, Yaniv, Ziv Rafael (NIH/NLM/LHC) [C]
>> <zivrafael.yaniv at nih.gov> wrote:
>> > Hello Oleg,
>> >
>> > The ImageRegistrationMethod only supports images with pixel type
>> > sitkFloat32 and sitkFloat64. You can either specify the pixel type when
>> > reading the image
>> >
>> > (http://www.itk.org/SimpleITKDoxygen/html/namespaceitk_1_1simple.html#a02ff
>> > c30c3c55dd9eeff3f76ba19f35e7) or read the image with its native pixel
>> > type
>> > and then
>> > use the SimpleITK Cast function
>> >
>> > (http://www.itk.org/SimpleITKDoxygen/html/namespaceitk_1_1simple.html#af8c9
>> > d7cc96a299a05890e9c3db911885), casting it to either of these two types.
>> >
>> >    Ziv
>> >
>> >
>> >
>> > On 11/18/15, 9:51 AM, "Oleg Subachev" <osubachev at gmail.com> wrote:
>> >
>> >>Thanks, Brad.
>> >>
>> >>But when I try this code:
>> >>using ( ImageRegistrationMethod method = new ImageRegistrationMethod() )
>> >>{
>> >>method.SetMetricAsMattesMutualInformation( 50 );
>> >>double metric = method.MetricEvaluate( SimpleITK.ReadImage( "1.png" ),
>> >>SimpleITK.ReadImage( "2.png" ) );
>> >>}
>> >>
>> >>I get the exception:
>> >>{"Exception thrown in SimpleITK
>> >>ImageRegistrationMethod_MetricEvaluate:
>>
>> >> >>..\\..\\..\\..\\..\\SimpleITK\\Code\\Registration\\src\\sitkImageRegistrat
>> >>ionMethod.cxx:862:\nsitk::ERROR:
>> >>Filter does not support fixed image type: vector of 8-bit unsigned
>> >>integer"}
>> >>
>> >>What's wrong ?
>> >>What is the simplest way to get similarity value of two image files ?
>> >>
>> >>--
>> >>Best regards,
>> >>Oleg Subachev
>> >>
>> >>On Tue, Nov 17, 2015 at 6:41 PM, Bradley Lowekamp
>> >><blowekamp at mail.nih.gov> wrote:
>> >>> Hello,
>> >>>
>> >>> You should look into SimpleITK's
>> >>>ImageRegistrationMethod::MetricEvaluate( Image, Image ) member
>> >>> function.
>> >>>
>> >>> Here is a Python example of using the method, C# should be similar:
>> >>>
>> >>>
>>
>> >>> >>>http://insightsoftwareconsortium.github.io/SimpleITK-Notebooks/63_Registr
>> >>>ation_Initialization.html
>> >>>
>> >>> HTH,
>> >>> Brad
>> >>>
>> >>> On Nov 17, 2015, at 8:24 AM, Oleg Subachev <osubachev at gmail.com>
>> >>> wrote:
>> >>>
>> >>>> I need to get similarity metrics for 2D images under .NET.
>> >>>> According to ITK documentation
>> >>>> (http://www.itk.org/Doxygen/html/ImageSimilarityMetricsPage.html)
>> >>>> there are several Image To Image metrics available.
>> >>>> ITK itself contains corresponding methods.
>> >>>> But I cannot find those methods in SimpleITK :-(
>> >>>> There is SimpleITK.NormalizedCorrelation(Image, Image, Image) method,
>> >>>> but it seems to have nothing with similarity metrics.
>> >>>>
>> >>>> How to get to get image similarity metrics under .NET ?
>> >>>>
>> >>>> --
>> >>>> Best regards,
>> >>>>
>> >>>> Oleg Subachev
>> >>>> _______________________________________________
>> >>>> Community mailing list
>> >>>> Community at itk.org
>> >>>> http://public.kitware.com/mailman/listinfo/community
>> >>>
>> >>_______________________________________________
>> >>Community mailing list
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>> >
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