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Timeline for Counting Grains of Rice

Current License: CC BY-SA 4.0

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Mar 1, 2021 at 15:15 history edited Toby Speight CC BY-SA 4.0
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Nov 3, 2014 at 23:27 comment added Calvin's Hobbies I'm fine with the average area thing. Grain area is (roughly) constant across images.
Nov 3, 2014 at 19:59 comment added Adam Davis Note that this, and all the other solutions using area, fail to follow this rule: Small and large grains are counted alike as one grain each. The results, however, speak well of this method.
Nov 3, 2014 at 19:57 comment added Adam Davis @njzk2 No. Given the rule The images have different dimensions but the scale of the rice in all of them is consistent because the camera and background were stationary. This is merely a value that represents that rule. The result, however, changes according to the input. If you change the rule, then this value will change, but the result will be the same - based on the input.
Nov 3, 2014 at 16:58 comment added njzk2 doesn't that count as hardcoding the result?
Nov 3, 2014 at 16:56 comment added Ell @njzk2 No, only their average area :)
Nov 3, 2014 at 16:52 comment added njzk2 so you need the actual number of grains before measuring them?
Nov 3, 2014 at 16:49 comment added Ell @njzk2 It's precalculated from the foreground area and actual grain count of the test images.
Nov 3, 2014 at 16:26 comment added njzk2 where does avg_grain_area = 3038.38; come from?
Nov 3, 2014 at 12:38 history edited Ell CC BY-SA 3.0
added 59 characters in body
Nov 3, 2014 at 9:57 history edited Ell CC BY-SA 3.0
added 686 characters in body
Nov 2, 2014 at 20:51 comment added Chris Cirefice This is a really clever solution, nice work!
Nov 2, 2014 at 18:19 history answered Ell CC BY-SA 3.0