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I have the following b&W image with the ROI (Region of Interest) shown as dashed green lines with the solid line in the centre. I am hoping to develop some code where the ROI can be automatically drawn in by adding 30% of the distance between the two solid green lines to either side of both solid green lines (as shown in the image as dashed green lines). I am then hoping to get the number of black and white pixels within both areas between the dashed green lines. Thanks

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Kieran Brennan
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  • Not very clear. What's a *"consistently coloured pixel"* please? Consistent with what? What's 20% of a boundary please? A boundary is a line, so what's 20% of a line? Maybe you could add a third image with the pixels you want to count coloured differently? – Mark Setchell Aug 17 '19 at 01:39
  • Please provide 2 further images - the black and white one without annotations, and just the green annotations, both separately. – Mark Setchell Aug 19 '19 at 22:40
  • Also your diagram doesn't match your textual description. If the dotted buffer around the solid green line is 20% of the distance between the green lines, the buffer should grow fatter where the solid lines are further apart... – Mark Setchell Aug 19 '19 at 22:42
  • Your right, the dotted buffer should get thicker where the distance between the green lines grows. – Kieran Brennan Aug 22 '19 at 04:34

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