Not really a "technical paper" per say, just a brief article, so I thought it would better fit here. Check out this surface data done on an apple and an orange. Pretty neat to see the difference when scaling is involved.
Apples and Oranges & the Scaling of Surface Data
One of the most powerful tools for understanding surface texture is a picture. A properly scaled profile graph or a beautifully rendered 3D surface can give great insight into surface features that may not be easily described with traditional numbers or parameters.
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