How do I scan custom card?

[matghazaryan]

I have specific cards in my country it looks like as MasterCard or VisaCard but it not scanning at all. Is there any options that I can scan custom card?

[tchernitski]

What digit(s) are at the beginning of the card number of your cards? Visa/mastercard cards must start with 4 or 55 or 56. So there is validation at: https://github.com/faceterteam/PayCards_iOS_Source/blob/848fa0fc82b5db253e6b335362caef8e3e60da97/PayCardsRecognizer/CrossPlatform/Recognizer/NumberRecognizer.cpp#L307

That can be a reason why your card has not been recognized. You can modify CNumberRecognizer::CheckSum method to allow your cards.

[matghazaryan]

My card starts with 9 digit. How could I modify it? I have to import it manually and change the code there?

[tchernitski]

Modify the code in PayCards_iOS_Source project, build framework by yourself and replace old one by new one in your project.

[matghazaryan]

I just modified the class and added this line

if (number[0] != 5 && number[0] != 4 && number[0] != 2 && number[0] != 9) { return false; }

I checked the result it was okay this method was called func payCardsRecognizer(_ payCardsRecognizer: PayCardsRecognizer, didRecognize result: PayCardsRecognizerResult)

but after 1 second app crashing. And I have this error. What is that?

CNameRecognizer::Process(cv::Mat&, std::1::vector<cv::Mat, std::1::allocator >&, std::1::basic_string<char, std::__1::char_traits, std::1::allocator >&) ()

[tchernitski]

Does crash happen after each recognition? or time to time? Does the crash happen for any card or only for specific one? According to the crash log something went wrong with name recognition. Just for test, could you please init the recognition module in the way:

let mode = PayCardsRecognizerDataMode(rawValue: PayCardsRecognizerDataMode.date.rawValue|PayCardsRecognizerDataMode.number.rawValue)! recognizer = PayCardsRecognizer(delegate: self, recognizerMode: mode, resultMode: PayCardsRecognizerResultMode.sync, container: recognizerContainer, frameColor: .green)

There is only number and date recognition.

Will there be crash?

[vitkuzmenko]

I was update pod to version 1.1.4. Please make pod update

[matghazaryan]

It was crashing any time but when I put your code it stopped crashing.

let mode = PayCardsRecognizerDataMode(rawValue: PayCardsRecognizerDataMode.date.rawValue|PayCardsRecognizerDataMode.number.rawValue)!
        recognizer = PayCardsRecognizer(delegate: self, recognizerMode: mode, resultMode: PayCardsRecognizerResultMode.async, container: self.view, frameColor: .green)

I putted self.view as my container. is it correct?

I don't know why but name never has been scanned. Maybe the reason is that name in custom card not the same position as in Master card or VISA card.

What is the difference between your code and the previous code?

[tchernitski]

The code I attached above initializes Recognizer with number/date recognition mode. So it tries to recognize number and date but not the name. So it appears the crash happens during name recognition. "Maybe the reason is that name in custom card not the same position as in Master card or VISA card." - yes it is the reason. There is hardcoded ROI that used for name localization/recognition https://github.com/faceterteam/PayCards_iOS_Source/blob/a189f87473777e6e8b9a03845f10825a3f4f942d/PayCardsRecognizer/CrossPlatform/Recognizer/NameRecognizer.cpp#L21

You can try to change coordinates to other position that fits you (not sure if there are no other dependencies, try not to change height and width of the ROI, change only x/y coordinates). Take into account that processing card image has 660/416 px size

It would be great if you share image of problem card so we can try to figure out that causes the crash. For security reason you can mask number and date, but not the name (seems it causes the crash). I will understand if it's impossible. We will try to figure out the issue by ourselves. Thanks

[matghazaryan]

I will do it later and share the result with you of course. Thank you

[matghazaryan]

I still couldn't fix the crash. When I am adding name recognition part it still crashing I did some changes there (i.e I changed nameWindowRect(25,325,494,80) to another value) but it still crashing. If the rect size will be changed is it going to scan VISA or MasterCard?

Is it possible increase the rect left margin or something else? Or what should we can do that it will scan any the names as well

[tchernitski]

Unfortunately we can't reproduce the crash. It seems it in some way connected with exact card you use. Could you answer some questions:

• Does crash happen after each recognition? or time to time?
• Did you try other your specific cards? What was result? Did you try classic visa/mastercard?
• You told crash happened after didRecognize had called, could you check if there is any recognized name data?

[matghazaryan]

Actually now it is not crashing at all. Maybe you changed something. But I can say that I did a lot of test and now it is working. thank you very much

[Magantiaruna]

please open that..this type of card is not able to scan using this framework please help.

[tchernitski]

The framework recognizes only embossed cards. We are planning to add plain cards recognition.

[Magantiaruna]

when can we expect the plain cards recognition...

[tchernitski]

I hope by the end of this year

[Magantiaruna]

if you dont mine ,can you please refer any one framework to support all the cards to scan.

[MirshodRaupov]

Hi @tchernitski, bro The framework doesn't recognize non embossed cards, If you have solution, please share!