What a camera needs to see fill-in on a cosmetics carton
The resolution has to cover the smallest type size. If it does not, do not promise that it can be seen. A steady view needs about 3 pixels. If it is not clear, do not loosen the threshold.
To see fill-in on a cosmetics carton, the resolution has to cover the smallest type size. If it does not, do not promise that it can be seen. 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
Fine type gets thicker. Reverse type gets smaller or plugs shut. If the picture cannot separate it at all, moving the threshold only paints the brand color of the cosmetics carton red. The resolution has to cover the smallest type size. If it does not, do not promise that it can be seen.
Optics
| What is needed | What enough looks like | What not enough looks like |
|---|---|---|
| The resolution covers the smallest type size. If it does not, do not promise it | Fine type gets thicker. Reverse type gets smaller or plugs shut | Only a blurry circle is left |
| It spans about 3 pixels | It shows steadily | It comes and goes, yet it is written down as detectable |
| The brand color is in the field of view | The critical place is seen | Only the decorative edge is lit |
Try it on a sample
- See whether the picture separates it: fine type gets thicker, and reverse type gets smaller or plugs shut.
- Count about how many pixels it covers.
- If it is not clear, change the light or the focus, not the threshold.
