Quote:
Originally Posted by Want.FR-S
I scale the images based on length rather than height since the height can be changed depends on the source image that you have.
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I would also like to stress the significance of aligning the images to the front wheel.
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Unfortunately you are missing one more thing,
, lens distortion. Lots of car pictures skew the front and rear bumpers because they are near the edges, and are fractionally off. This is why I only use wheel size to start with, and length just to double check.
Front wheel comment: yeah, that. And when I visualize sitting in the driver's seat, I kind of get the idea of weight distribution around me. Driver position in the diagram would be cool too, like road and track does I think.