I have forgot to say one thing:
you may probably consider also involving some format operation or imposed
ImageLayout to make sure that the intermediate results still can be
represented within the original data type and/or the output datatype allows
to properly represent your data as you need (in case you need float values
instead of rounded integers).
Cheers,
Daniele
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-------------------------------------------------------
On Tue, Oct 8, 2013 at 4:17 PM, Daniele Romagnoli <
daniele.romagn...@geo-solutions.it> wrote:
> Hi Dmitry,
> Right now I'm not sure about how you can efficiently do that...
> However, you may consider doing 2 Adds ops followed by a DivideByConstant.
>
> Result = ((A+B) + C) / 3.
> (since the Add op only takes 2 sources).
> You can take a look to the BinaryOpTest.testAdd test from the gt-coverage
> module to see how to do GeoTools operations.
>
> Hope this helps,
> Daniele
>
>
>
> ==
> Our support, Your Success! Visit http://opensdi.geo-solutions.it for more
> information.
> ==
> Ing. Daniele Romagnoli
> Senior Software Engineer
>
> GeoSolutions S.A.S.
> Via Poggio alle Viti 1187
> 55054 Massarosa (LU)
> Italy
> phone: +39 0584 962313
> fax: +39 0584 1660272
>
> http://www.geo-solutions.it
> http://twitter.com/geosolutions_it
>
> -------------------------------------------------------
>
>
> On Tue, Oct 8, 2013 at 9:47 AM, dementiev <dementie...@gmail.com> wrote:
>
>> Hi Daniele,
>>
>> Thank you for the answer.
>>
>> "Do you want that the first band of the final image is the average of the
>> first band of each image and so on" - yep. My images share the same
>> positions.
>>
>> I just want to know the most rational way of doing this kind of merge.
>>
>> Regards,
>> Dmitry.
>>
>>
>>
>> --
>> View this message in context:
>> http://osgeo-org.1560.x6.nabble.com/merge-rasters-tp5082029p5082307.html
>> Sent from the geotools-gt2-users mailing list archive at Nabble.com.
>>
>>
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