How the camera sees misregister on a pharmaceutical label
To see misregister on a pharmaceutical label, the crosshairs must be in the field of view. If you cannot see it, change the light or the resolution first. Do not loosen the threshold first. The colour-to-colour crosshairs do not line up.
To see misregister on a pharmaceutical label, the crosshairs must be in the field of view. If you cannot see it, change the light or the resolution first. Do not loosen the threshold first. The colour-to-colour crosshairs do not line up.
Fix the optics first
The colour-to-colour crosshairs do not line up. If the picture cannot separate it, loosening the threshold only paints the legal text and the barcode red. The crosshairs must be in the field of view.
Optics
| Need | Enough | Not enough |
|---|---|---|
| The crosshairs must be in the field of view. | The colour-to-colour crosshairs do not line up. | 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 legal text and the barcode 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 colour-to-colour crosshairs do not line up.
- Count about how many pixels it covers.
- If you cannot see it, change the light or the focus. Do not change the threshold.
