
已采纳回答I hope the following suggestions can help you solve the problem:
1. Improve similarity
2. Switch to channels with strong contrast
3. Place the materials at an angle and reduce it to a template angle of about 20 degrees
4. Different materials have varying degrees of sensitivity to light. For example, white and light colored materials are more sensitive to light and require a decrease in camera exposure time. For black and dark colored materials, an increase in exposure time is necessary to achieve clear imaging. As a result, the template becomes clearer and the accuracy is enhanced.










The material I processed has a lighter color, but after several adjustments, the effect has improved significantly. Thank you for your patient guidance