[Numpy-discussion] Simple pattern recognition

René Dudfield renesd@gmail....
Mon Sep 21 13:11:45 CDT 2009


On Mon, Sep 21, 2009 at 6:45 PM, Gökhan Sever <gokhansever@gmail.com> wrote:
> I asked this question at
> http://stackoverflow.com/questions/1449139/simple-object-recognition and get
> lots of nice feedback, and finally I have managed to implement what I
> wanted.
>
> What I was looking for is named "connected component labelling or analysis"
> for my "connected component extraction"
>
> I have put the code (lab2.py) and the image (particles.png) under:
> http://code.google.com/p/ccnworks/source/browse/#svn/trunk/AtSc450/labs
>
> What do you think of improving that code and adding into scipy's ndimage
> library (like connected_components())  ?
>
> Comments and suggestions are welcome :)
>
>
> On Wed, Sep 16, 2009 at 7:22 PM, Gökhan Sever <gokhansever@gmail.com> wrote:
>>
>> Hello all,
>>
>> I want to be able to count predefined simple rectangle shapes on an image
>> as shown like in this one: http://img7.imageshack.us/img7/2327/particles.png
>>
>> Which is in my case to count all the blue pixels (they are ice-snow flake
>> shadows in reality) in one of the column.
>>
>> What is the way to automate this task, which library or technique should I
>> study to tackle it.
>>
>> Thanks.
>>
>> --
>> Gökhan
>
>

Hi,

cool!  I didn't even know there was an ndimage... :)

Something similar(connected components) can be found in
pygame.transform and pygame.mask.  However that code is in C.

cheers,


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