qr-code

问题 I came across this APIserver to generate the QRCode but I was wondering is it possible to just use HTML to generate the QRcode for example this is what I was thinking <input id="text" type="text" value="Please Enter Your NRIC or Work Permit" style="Width:20%"/> <img src="https://api.qrserver.com/v1/create-qr-code/?data=HelloWorld&size=100x100" alt="" title="HELLO" /> In the "title" I believe it is where you will write your text and the QR code would generate, I was wondering how can I create

问题 I came across this APIserver to generate the QRCode but I was wondering is it possible to just use HTML to generate the QRcode for example this is what I was thinking <input id="text" type="text" value="Please Enter Your NRIC or Work Permit" style="Width:20%"/> <img src="https://api.qrserver.com/v1/create-qr-code/?data=HelloWorld&size=100x100" alt="" title="HELLO" /> In the "title" I believe it is where you will write your text and the QR code would generate, I was wondering how can I create

问题 I was looking for QR code example. And I found the below link for creating QR code from a string. This solution is working fine but if I have a class lets say Student and have fields: id,name,phone. Then create an object of Student class and want to make QR code out of all the info of an object(Which should be information of 1 student). How am I going to do it? And after making the QR code, how am I going to retrieve it back to the original object? 回答1: A QR code can contains arbitrary text,

问题 I was looking for QR code example. And I found the below link for creating QR code from a string. This solution is working fine but if I have a class lets say Student and have fields: id,name,phone. Then create an object of Student class and want to make QR code out of all the info of an object(Which should be information of 1 student). How am I going to do it? And after making the QR code, how am I going to retrieve it back to the original object? 回答1: A QR code can contains arbitrary text,

问题 I used Zbar and OpenCV to read the QR code in the image below but both failed to detect it. For ZBar, I use pyzbar library as the python wrapper. There are images that QR is detected correctly and images really similar to the successful ones that fail. My phone camera can read the QR code in the uploaded image which means it is a valid one. Below is the code snippet: from pyzbar.pyzbar import decode from pyzbar.pyzbar import ZBarSymbol import cv2 # zbar results = decode(cv2.imread(image_path)

问题 I am looking for qrcode generator for python window version. Can anyone help me to find out. I didn't get anywhere. Please help me. Thanks, manu 回答1: either you have to Compile it yourself; or if you only need to generate the codes (i.e. encoding but no decoding), use pyqrencode that you can get from PyPi (e.g. pip install pyqrencode ) If you don't have pip, I suggest you start by installing setuptools and then use easy_install to install pip (of course, you can cut corners by just doing an

问题 I am trying to read a bmp file using below function in c++ HANDLE hBmp = LoadImage(0, L"C:\\Users\\abhinay\\Desktop\\Sample.bmp", IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION | LR_LOADFROMFILE); In my scenario the sample.bmp is a QRCode which is generated by a 3rd part QRCode library. When i try to read QRCode generated with above "LoadImage" function i get hBmp as "NULL". I opened QRCode image "sample.bmp" with MS paint and saved it as .bmp in 24-bit Bitmap and now i am able to load the file

问题 I've got the following ZPL code which prints a QR code with fielddata X50X-8091X-11111. ^XA^PON^FWN^FO30,10^BQN,2,6^FDx50x-8091x-12345^FS^XZ But what the scanner scans from the QR code is this: 0X8091X11111. So the first X50 is not printed. What can I do? 回答1: The ZPL manual has a very detailed explanation of the data switches for QR codes: ^BQ Command Edit: Sorry @Veve, the explination is VERY long. Here is the simplified explination: 回答2: The chars immediately following ^FD are switches (as

问题 I'm writing an application to generate QR codes with custom dot shapes. What's the best way to do this using zxing? So far, I've dug through the source code and I see that the data bits are written in com.google.zxing.qrcode.encoder.MatrixUtil.embedDataBits(). I think I could add some code on to the end of this function which would allow me to mask the dots but I'm not sure how to do this in Java. I can't extend the class because it's declared as final. Would it be a good idea and if so how

问题 I'm writing an application to generate QR codes with custom dot shapes. What's the best way to do this using zxing? So far, I've dug through the source code and I see that the data bits are written in com.google.zxing.qrcode.encoder.MatrixUtil.embedDataBits(). I think I could add some code on to the end of this function which would allow me to mask the dots but I'm not sure how to do this in Java. I can't extend the class because it's declared as final. Would it be a good idea and if so how