What a camera needs to see edge wave on a food web
To see edge wave on a food web, look first at whether the web edge is uneven. A blurry camera can come from that. If you can't see it, change the light or the resolution first. Don't loosen the threshold first.
To see edge wave on a food web, look first at whether the web edge is uneven. A blurry camera can come from that. If you can't see it, change the light or the resolution first. Don't loosen the threshold first.
If you can't see it, fix the optics first
The web edge waves, and local register and wrinkles follow it. If the image can't separate it at all, changing the threshold only paints the ingredient panel and the heat-seal area of the food web red. Look first at whether the web edge is uneven. A blurry camera can come from that.
Optics
| Need | Enough | Not enough |
|---|---|---|
| Look first at whether the web edge is uneven. A blurry camera can come from that. | The web edge waves, and local register and wrinkles follow it. | Only a blurry circle left |
| About 3 pixels across | Shows steadily | It comes and goes, and you still log it as detectable |
| The ingredient panel and the heat-seal area are in the field of view | The critical spot is seen | You only light the decorative edge |
Try it on a sample
- Confirm you can separate it in the image: The web edge waves, and local register and wrinkles follow it.
- Count about how many pixels it covers.
- If you can't see it clearly, change the light or the focus. Don't change the threshold.
