change variable name im to img for consistency #55
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Using the variable name
imginstead ofim(regarding the representation of the original image to be processed) I believe will ensure consistency - and ensuring the downstream code to work with reduced frastration from the student's perspective.For instance, the
cv2.drawContours()procedure downstream overlaycontourstoimg(notim).Keeping the variable name as
img(instead ofim) will ensure thecv2.drawContours()step downstream to run smoothly. (The student also get to see immediately that we are trying to overlay thecontoursto the original image to be processed - rather than some random / abstract images.)