[Insight-users] Enlarging an image

[Francis Girard]

Hello Bill and David,

I finally had time to make it work. I am sorry for the delay but I was busy
in a weekful symposium.

It worked very nicely once I figured out the role of the input and output
spacing and with a very high quality output compared to the opencv lib that
I was using until I needed more advanced functionality like Otsu
thresholding and others.

Really, my very warm thanks.

I will post my solution today or tomorrow. I first need to get it out of my
application code.

I also worked out an adaptation of the CLAHE algorithm for ITK and it begins
to work altough it is not following the rules of a good standard ITK image
filter yet. But if you are interested, I can post the final version of it
somewhere.

Regards,

Francis Girard




2011/4/13 David Doria <daviddoria at gmail.com>

> Francis,
>
> Did you get this to work? If so, would you please post your solution here:
> http://www.itk.org/Wiki/ITK/Examples/WishList/Upsampling ?
>
> Thanks,
>
> David
>
>
> On Sun, Apr 10, 2011 at 12:05 PM, Francis Girard <
> francis.girard07 at gmail.com> wrote:
>
>> Hi,
>>
>> I would like to enlarge an image using a bicubic interpolation. I'm not
>> sure how. Yes I am a beginner.
>>
>> I see there is the InterpolateImagePointsFilter filter but the usage of
>> the method SetInterpolationCoordinate which takes a complete itk::Image with
>> special parameters types seems very strange to me.
>>
>> I also see there is the ResampleImageFilter. But I am a bit loss with all
>> you can do with this when looking at the manual.
>>
>> And there is also the world/physical coordinates spaces.
>>
>> So between all this I am bit loss. What is the simplest way to enlarge and
>> interpolate an image in ITK? Is there an example somewhere showing _just_
>> this?
>>
>> Thank you very much
>>
>> Francis Girard
>>
>>
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