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how to create a UV mapping (?) of a texture onto a product photograph based on a calibration pattern
To my knowledge there's no way to use UV data in Photoshop and I'm not sure it would help with this example because the deformation is quite strong: it'd be a job for vector displacement filter (which Photoshop also doesn't have). If I had a task like this I'd go 3d and since you have Blender as a tag, here's a little breakdown of how I'd approach this:
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My guess is that sample was created using Phantasm from AstuteGraphics.com -- it excels at custom halftone-like fills.
You merely create black and white objects or a gradient-filled object
Set the options in the plug in....
Then add additional fills or objects for the secondary color....
This equates to black areas creating larger characters and then ...
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JPG artifacts are most often noticeable at the edges of large areas containing similar color... there are very few such areas in your particular sample image.
However, there are some considerable artifacts.
What Amazon uses, I'm afraid would require Amazon to answer.
Ultimately, the quality of the final jpg depends highly upon the image itself and any ...
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I have sort of a similar to @Wolff's comment idea, but a bit easier to maintain.
Here're are my SOs:
Duplicate your image using Image > Duplicate
Select all the smart objects in the duplicate doc and using the Move Tool move them to the original document holding the Shift button: this way they'll get to the same positions as original layers
Well, that's ...
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how to create a UV mapping (?) of a texture onto a product photograph based on a calibration pattern
I repeat my old comment: As long as your images do not have common simple shapes such as straight lines or circles very loose warping should be plausible enough. But the light and shadows should be right. Could you accept it? If yes you can do it in 2D.
An example
One of your unused socks is clipped and pasted over an image of a foot as a new layer. A mesh ...
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Make a selection around the buttons
Menu Image → Adjustment → Desaturate
Make a Solid Color Layer with the RGB settings
Change the blend mode to Color
Adjust the Color Layer Mask applying a Minimum Filter
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