How the camera sees banding on corrugated preprint
To see banding on corrugated preprint, the band must cross the field of view, or you cannot split it from a local hickey. If you cannot see it, change the light or the resolution first. Do not loosen the threshold first.
To see banding on corrugated preprint, the band must cross the field of view, or you cannot split it from a local hickey. If you cannot see it, change the light or the resolution first. Do not loosen the threshold first.
Fix the optics first
Light and dark bands run across the web or around it. If the picture cannot separate it, loosening the threshold only paints the barcode and the product name red. The band must cross the field of view, or you cannot split it from a local hickey.
Optics
| Need | Enough | Not enough |
|---|---|---|
| The band must cross the field of view, or you cannot split it from a local hickey. | Light and dark bands run across the web or around it. | 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 barcode and the product name 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: Light and dark bands run across the web or around it.
- Count about how many pixels it covers.
- If you cannot see it, change the light or the focus. Do not change the threshold.
