What a camera needs to see fine-type bridging on a cosmetics carton
There must be pixels between the strokes. Only then can you call a join. If you cannot see it, change the light or the resolution first. Do not loosen the threshold first.
There must be pixels between the strokes. Only then can you call a join. If you cannot see it, change the light or the resolution first. Do not loosen the threshold first.
If you cannot see it, change the optics first
Neighbouring strokes join. If the picture cannot separate it at all, moving the threshold only paints the brand colour on the cosmetics carton as a field of red. There must be pixels between the strokes. Only then can you call a join.
Optics
| Needed | Enough looks like | Not enough looks like |
|---|---|---|
| There must be pixels between the strokes. Only then can you call a join. | Neighbouring strokes join. | Only a blurred circle left |
| About 3 pixels across | It shows steadily | It comes and goes, yet you write that it can be detected |
| The brand colour is in the field of view | The critical place is seen | The light only hits the decoration edge |
Try it on a sample sheet
- Confirm the picture can separate this: Neighbouring strokes join.
- Count about how many pixels it covers.
- If you cannot see it clearly, change the light or the focus. Do not change the threshold.
