How do I get values from a greyscale image?

I would like to get values 0 (black) to 1 (white) at specific x,y pixel positions from an image. Is that possible?

I know that the advanced random generates various noise types but I want to do the same kind of things but with pre designed greyscale values so I have more control.

Cheers

Hi.

You can load the image into canvas and see what is in the right pixels.

construct.net/en/make-games/manuals/construct-3/plugin-reference/drawing-canvas