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Hi everyone, I am working on an app using OpenCV249 on android and would like to find means to obtain the coordinates of the pixels that are lighted at a specific color relative to the image. For instance if I draw a green dot using android's canvas and drawables on an image, is there a way to obtain the coordinates of that green dot relative to the image?

And if this process is extended to more complicated random sketches, ie circles or rectangles, is there a way to obtain those points as well?

Hi everyone, I am working on an app using OpenCV249 on android and would like to find means to obtain the coordinates of the pixels that are lighted at a specific color relative to the image. For instance if I draw a green dot using android's canvas and drawables on an image, is there a way to obtain the coordinates of that green dot relative to the image?

And if this process is extended to more complicated random sketches, ie circles or rectangles, is there a way to obtain those points as well?well? Do note that I am developing for android, thanks!