[Scilab-users] {EXT} image area mask for applying for filter

[Dang Ngoc Chan, Christophe]

Hello,

> De : users [mailto:users-bounces at lists.scilab.org] De la part de Erhy
> Envoyé : samedi 10 décembre 2016 21:34
>
> My interest ist to image processing.
> Are there tools to mask an area of an image, that a filter is only applied for the masked area?

Tools for image processing are in dedicated toolboxes, see
https://atoms.scilab.org/categories/image_processing
but I don't know these so I can't advise you.

Concerning a mask, you may extract a part of the image.
Let us suppose your image is a matrix called mpict.
If your mask is represented by a condition,
then you can create a matrix of booleans, called e.g. mbool, in which
the (m, n) boolean is true when the condition is true for the (m, n) element of the picture.

You can then extract the zone with
mpict(mbool)

HTH

--
Christophe Dang Ngoc Chan
Mechanical calculation engineer
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