How to know if a pixel is inside a selection ?

[YuriGagarine]

Hi all,

I want to know if a pixel is inside a selection thanks to the txt file that I get after saving the ROI. The text file only give the tops of the polygon selection and what I want to have is a binary mask that distinguish pixel that are in the selection from the other.

Thanks in advance and sorry for my english.

[Rainer M. Engel]

I don't know what you already have tried to solve your problem but there
is a function to check if a point is inside a selection.

selectionContains(x, y)


Am 11.04.2014 13:18, schrieb YuriGagarine:
> Hi all,
>
> I want to know if a pixel is inside a selection thanks to the txt file that
> I get after saving the ROI. The text file only give the tops of the polygon
> selection and what I want to have is a binary mask that distinguish pixel
> that are in the selection from the other.
>
> Thanks in advance and sorry for my english.

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[YuriGagarine]

Thanks a lot, it worked !