Fortune Telling Collection - Comprehensive fortune-telling - Identification process of two-dimensional code
Identification process of two-dimensional code
1, click the+icon. Enter WeChat and click the+icon in the upper right corner. Click to scan. Click on the above to scan. Click the picture icon. Click on the picture icon below. Select a QR code picture. Just select the QR code picture.
2. Save the QR code to your mobile phone. After saving the QR code, open an APP that can scan the code, such as WeChat. Click the picture icon in the upper right corner of the scan. Find the QR code just saved from the photo of the mobile phone.
3. The specific operation process is as follows: log in to WeChat by mobile phone, enter the main interface, and click the plus sign on the upper right. Click "Sweep" and click on the three points in the upper right corner. Click "Select QR code from photo album" and make a selection as needed.
4. There are two kinds of QR code pictures in the mobile phone, one is displayed in WeChat; One is to display it outside the stool's WeChat, such as other applications or web pages, or save it as a picture. The scanning methods of these two cases are introduced here.
5. Question 1: How to use the QR code? How to scan and enter the web page?
What do you think of QR code? Seek details
Coding the information that the mobile phone needs to access and use into a two-dimensional code, and reading it with the camera of the mobile phone is the two-dimensional code of the mobile phone.
Two-dimensional codes usually have specific positioning marks (for example, the two-dimensional code has three large positioning points), and the code reader can correctly identify and interpret the two-dimensional code through the positioning marks, so it can be identified no matter which direction it is read.
Open the debugging software and enter the debugging interface. Turn on the display and adjust the position of the code reader so that the QR code is located in the center of the field of view as much as possible. Click Adjust, and the code reader will automatically adjust all parameters, waiting for the progress bar to be completed. Automatic adjustment completion prompt.
How does the mobile phone recognize the QR code?
Save the QR code in your mobile phone, open WeChat and click the plus sign in the upper right corner. Click to scan. Click on the top right corner. Click below to add an album and find the QR code.
The QR code is actually a digital matrix consisting of many zeros and 65438+ zeros. Two-dimensional bar code is a kind of black and white figure distributed on a plane (two-dimensional direction) according to certain rules, which is used to record data symbol information.
Aim the mobile phone at the QR code, so that the QR code completely appears in the field of vision of the mobile phone, and Alipay will automatically recognize the QR code. Method 2: Scanning a QR code with a QR code scanning tool is the method and steps of scanning a QR code with a mobile phone.
The realization of mobile phone QR code scanning function needs image recognition technology. As a special image, QR code contains a series of black and white pixels. When scanning the QR code, the mobile phone camera will take a picture of it and convert it into digital data.
Apple's mobile phone has a built-in QR code recognition function, which can be identified by using the camera application.
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