Our planned planning camera inspection of reflective parts in a precision metal-parts inspection area has Fairino FR5 presenting a polished metal cover to a fixed camera.
The example images contain bright streaks that shift with small presentation differences, yet those streaks are being labelled as scratches.
Before commissioning, I'd like to establish reliable references and image conditions for threshold tuning.
Check whether the suspected scratches were confirmed on physical samples under the agreed appearance procedure. Link each image to its sample identity and inspection result first.
I've found that some labels were assigned from the images themselves. The samples are still available, but those labels have no corresponding physical inspection results, making the reference circular.
Keep the image-only labels uncertain pending physical inspection. A controlled comparison of lighting and presentation can then investigate whether the moving streaks indicate reflection effects.
@PavelBrown0875 A scratch's visibility can change with presentation too. Don't let 'moving streak' quietly become the rule for relabelling something acceptable.
You're right to qualify that. The streak behaviour motivates an imaging investigation; it doesn't replace physical classification under the agreed inspection procedure.
@NadiaAllen0291 Keep them explicitly undecided, with the sample link. Don't use them as confirmed examples of either class until the physical review settles them.
@PavelBrown0875 I've checked the image folders and found that exposure and presentation both changed between them. Their improved appearance can't be attributed to either change individually.