Hi GiNN,
I'm not sure that it is possible with such a simple expression, as the doc
said :
*For instance, it is not possible to add vectors of different dimensions
(this implies the addition of a row vector with a column vector),or add a
scalar to a vector or a matrix, or divide two vectors, and so on...Thus, it
is important to remember that a pixel of n components is always represented
as a row vector.*
However, if you know the number of bands in your image, and if d and e are
scalars, you might try to use vector syntax in your expression like that :
im1*{d^2,d^2,d^2,d^2}/{cos e, cos e, cos e, cos e}
Arnaud
Le mercredi 22 avril 2015 21:02:15 UTC+2, GiNN a écrit :
>
>
> I have three-band images and I want to apply the same expression to each
> band and get a three-bad output.
> I am just starting with OTB and Monteverdi. Used installer on a 64 bit W7
> machine.
>
> The expression is very simple: output_pixel = (input_pixel*d^2)/cos e
>
> I read the cookbook recipe, and concluded BandmahX is what I need. But I
> am not sure how to formulate the expression so that the application goes
> through all pixels in all three bands.
>
> Any assistance is greatly appreciated.
>
> Gin
>
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