Made for my girlfriend :3 Finds the purple blob (which is a diffusing potassium permanganate crystal) overlaid on top of graphing paper and uses that to calculate its real-world area to estimate its volume.
In total, the experiment included 3 crystal experiments (A-C) of 6 photos (1-6) of different moments in time each. Unfortunately, the photos had some variation in lighting and huge variations in quality, affecting the measurement accuracy a lot:
| Original (2048*1536px) | Found blobs | Found lines |
|---|---|---|
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| Original (1200*1600px) | Found blobs | Found lines |
|---|---|---|
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| Original (1200*1600px) | Found blobs | Found lines |
|---|---|---|
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Line distance error: u_l = line thickness/line length = 3.5px/d
Total relative error u_total = 2 * u_l (because the area is calculated with the squared length)