Edge detection method for image cropping

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RX Ragul
RX Ragul 2021-3-14
评论： Image Analyst 2021-3-24
For this image I need to get the silver part alone as image for detecting the defects in it. I have written the code for detecting defects. I need a support to crop the silver part and save it as seperate image.

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回答（2 个）

Matt J
Matt J 2021-3-14
Image Analyst
Image Analyst 2021-3-14
编辑：Image Analyst 2021-3-14
Wow - so many problems with that, where do I start? First of all your image capture conditions are horrible. You should use a black background to make thresholding easier. Black velvet will work nicely. Secondly, from the perspective warp we can tell you're not using a telecentric lens. And it looks like you don't have a mounting jig. Using a mounting jig would ensure that your part is in the same position in every image and you can just use a fixed template to mask off where the part is known to be. Your illumination is horrible. How can you find defects when you have a specular area that's totally saturated!?!?
There's more, but that's enough for starters.
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RX Ragul
RX Ragul 2021-3-24
Can you help me out with an example output and a code snippet, because i cannot get you.
Image Analyst
Image Analyst 2021-3-24
Post an image from your now improved image capture system, and indicate exactly where in the image the defacts are.

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