How to generate QR code of image in MATLAB R2019b.

70 次查看（过去 30 天）
Balkar Singh
Balkar Singh 2021-3-16
评论： Balkar Singh 2022-12-8
I want to generate QR code of document image in MATLAB.
Please help
Thanks in advance
  4 个评论
显示 2更早的评论
Walter Roberson
Walter Roberson 2021-3-17
The largest QR code is too small to hold that image. However it might be the case that it could fit a compressed version of the image.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2021-3-17
filename = 'Tu_logo.png';
[fid, msg] = fopen(filename, 'r');
if fid < 0
error('could not open file "%s" because "%s"', msg)
end
bytes = fread(fid, 'uint8=>char', [1 inf]);
fclose(fid);
qr_array = encode_qr(bytes, [160 160]);
https://www.mathworks.com/matlabcentral/fileexchange/29239-qr-code-encode-and-decode
  12 个评论
显示 10更早的评论
ejs
ejs 2022-12-7
编辑：Walter Roberson 2022-12-7
Hi folks, the Guilty is here,
The updated code, https://se.mathworks.com/matlabcentral/fileexchange/41437-qr-code-encoder is based on the https://se.mathworks.com/matlabcentral/fileexchange/29239-qr-code-encode-and-decode with these differencies (if I recall correctly): UTF-8 as default character set; possibility to specify size of the message, as we needed the fixed dimensions of the QR code; possibility to alter error correction. It's all in the header.
An no, to my understanting it does not use neither Image Processing toolbox, nor has somenting in common with 3D scene control. Not sure how the categories are assigned in the Fileexchange.
I can't recall the exact procedure of specifyining the ZXing libraries. As ZXing written Java, the same as Matlab, there was some simple procedure to add then to the path. If anyone is still interested in it, I can try to restore the procedure.
Again, it was 12 years ago, there was no online QR services at that time.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Startup and Shutdown 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by