[Insight-users] Local texture Features

[Julien Malik]

Hi,

We have filters to compute local textures descriptors in Orfeo Toolbox, 
based on ITK classes.

Code is here :
http://hg.orfeo-toolbox.org/OTB/file/tip/Code/FeatureExtraction

The filters computing local textures around a neighborhood are :
otb::ScalarImageToTexturesImageFilter (based on 
itk::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator)
otb::ScalarImageToAdvancedTexturesImageFilter
otb::ScalarImageToHigherOrderTexturesImageFilter (based on 
http://www.insight-journal.org/browse/publication/231)

The filters are streamed and multithreaded, so they can be applied on 
images of arbitrary size.

Cheers,
Julien



Le 29/04/2011 10:42, M.Staring at lumc.nl a écrit :
> Hi,
>
> The following at least provides code to get plain GLCM operators working:
>
> https://github.com/ITKTools/ITKTools/tree/master/src/texture
>
> HTH,
>
> Marius
>
> -----Original Message-----
> From: insight-users-bounces at itk.org [mailto:insight-users-bounces at itk.org] On Behalf Of Neal R. Harvey
> Sent: donderdag 28 april 2011 18:15
> To: insight-users at itk.org
> Subject: Re: [Insight-users] Local texture Features
>
> Neil Panjwani Wrote:
>
>> Hi,
>>
>> I'm interested in computing local texture maps. I found a few filters
>> in ITK, including the
>> GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator,
>> which does compute many of the features I'm interested in. However, it
>> does so over an entire image, a masked image, or given a cooccurrence
>> matrix (which is usually generated from the entire image) and only
>> returns one texture value for each feature given that input. I'd like
>> to compute these features locally, in say a 9x9 neighborhood much like
>> the MATLAB function
>> entropyfilt() (
>> http://www.mathworks.com/help/toolbox/images/ref/entropyfilt.html)
>>
>> How can I utilize these filters to compute local features?
>      I am also very interested in doing exactly the same thing.
>      For example, if I have a segmentation and a number of objects
>      labeled in an image, I would like to get texture measures for each
>      individual object.
>
>      When I looked into this I wasn't even able to get the code for the
>      ITK plain vanilla GLCM operators working properly, let alone
>      something more complicated. In the end, I went to OpenCV and
>      modified some of the code there to do what I needed.
>
>      If anyone can provide examples of code that successfully implements
>      the ITK GLCM operators, that can provide results that correlate well
>      with applying some other GLCM tools such as those available in
>      matlab, it would be very much appreciated. If anyone is able to
>      provide a solution to the more complicated problem as elucidated by
>      Mr Panjwani, that would be wonderful.
>
>      Cheers
>
>