How the camera sees trailing dots on food flexible packaging
To see trailing dots on food flexible packaging, the direction must be clear. If it is blurred, focus first, then judge. If you cannot see it, change the light or the resolution first. Do not loosen the threshold first.
To see trailing dots on food flexible packaging, the direction must be clear. If it is blurred, focus first, then judge. If you cannot see it, change the light or the resolution first. Do not loosen the threshold first.
Fix the optics first
The dot trails a small tail, and the direction stays the same. If the picture cannot separate it, loosening the threshold only paints the ingredient list and the heat-seal area red. The direction must be clear. If it is blurred, focus first, then judge.
Optics
| Need | Enough | Not enough |
|---|---|---|
| The direction must be clear. If it is blurred, focus first, then judge. | The dot trails a small tail, and the direction stays the same. | Only a blurred circle left |
| About 3 pixels across | It stays | It comes and goes, and you still write that it can be caught |
| the ingredient list and the heat-seal area in the field of view | The critical place is seen | Only the decorative edge is lit |
Try it on a sample
- Confirm the picture can separate it: The dot trails a small tail, and the direction stays the same.
- Count about how many pixels it covers.
- If you cannot see it, change the light or the focus. Do not change the threshold.
