[BUG] "Scan your card" feature seems faulty

[amijsul]

Describe the bug
Our dev and qa team are trying to test the scan your card feature and getting spotty results. There are a variety of cards that are being ignored and not pulling the details of the image.

To Reproduce
Steps to reproduce the behavior:

1. Go to Adyen Drop In
2. Click on Cards
3. Click on "Scan your card"
4. Use a few different card colors and you will see that many do not get scanned properly. Even perfectly lining up the card that is in like-new condition can still fail to get any scan results.

Expected behavior
The scanner parses the card details for a like-new card.

Screenshots
The screenshots are blurry but any card with light colors and white text should work. It seems the contrast needs to be higher for the scan to work.

Environment

• Device: iPhone 17
• iOS Version: 26.0.1
• SDK Version: 5.23.1
• Adyen API Version: [e.g 67]
• Package management system: SPM
• Xcode version: 26.4
• Mac OS type: M3

Relevant source code
Add any source code causing the problem here.

Additional context
Add any other context about the problem here.

[nauaros]

Hi @amijsul! Thanks for the feedback. What country and issuers are these cards you are testing with from?

The feature is currently on pilot phase and adjustments to it are expected.

[amijsul]

I've tested with a HealthEquity Visa card in America.
It looks like this

[nauaros]

@amijsul The card scanner performs a Luhn check on the card number. The posted card does not pass the Luhn check.
Are you testing with real cards or mocks ones?

[amijsul]

We are testing with real cards, I just refrained from posting a real credit card on github. It seems the contrast of the card colors may have to do with it, which is why I found a picture of a similar card.