Taking pictures with a camera into images, and then to identify the qr code, the results a lot of can not identify, try so hard, want to ask next everybody how to deal with images or have a more efficient method, using Zxing improve the efficiency of recognition, it is better for the demo source code, thank you,

CodePudding user response:

The first thing you need to identify the qr code area in the picture, this is a algorithm of
https://www.jianshu.com/p/36b1ed153524

CodePudding user response:

I also met, enlarge images can solve a small part, but still many WeChat can identify, can't identify the zxing, open source or not,,,

CodePudding user response:

Zxing algorithm in general, much more than what big software on the market difference, comparison is general requirement of position, size of filling almost the whole picture and so on

CodePudding user response:

Has anyone used opencvSharp processing qr code, so please give me some advice

CodePudding user response:

This is a sister? You send a few pieces of you - I will tell you how to improve the recognition rate? Or ask me to eat a meal also rich with in chengdu

CodePudding user response:

Automatic identification or your hand? Thinking about the qr code decompression manually, automatically consider focusing problem

CodePudding user response:

refer to 6th floor rabbit family - second brother reply:

automatic identification or your hand? Considering the qr code manually extract, automatically consider focusing on

manual picture and identify images

CodePudding user response:

Not ah why must use zxing, I make a qr code card with built-in directly by the QRCodeEncoder, generated is sure to sweep,

CodePudding user response:

refer to the eighth floor rabbit family - second brother reply:

is not ah why must use zxing, I make a qr code card with built-in directly by the QRCodeEncoder, generated is sure to sweep luo,

She would like to ask your answer is not

CodePudding user response:

https://www.cnblogs.com/shuaimeng/p/10996401.html, consider this post, the use of opencv positioning barcode area with several algorithms, and then use the ZXing recognition, I passed some improvement (adjust the adaptive change of opening and closing operation operator), the recognition of images or effect is very good, doing now video capture

CodePudding user response:

refer to the second floor of orange peel ZZZ reply:

I also met, enlarge images can solve a small part, but still many WeChat can identify, can't identify the zxing, open source or not,,,

I'm afraid you have a problem is to call
I am also using zxing

Qr code is a small pocket

CodePudding user response:

Gaussian blur, closed operation, find qr code boundaries, find out the four corners, perspective transformation,,
https://www.linuxidc.com/Linux/2015-01/111962.htm

CodePudding user response:

Try the ThougthWorks library

https://blog.csdn.net/u012803075/article/details/78527157