Mercurial > hgrepos > Python2 > PyMuPDF
comparison mupdf-source/thirdparty/zxing-cpp/wrappers/python/README.md @ 2:b50eed0cc0ef upstream
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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| author | Franz Glasner <fzglas.hg@dom66.de> |
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| date | Mon, 15 Sep 2025 11:43:07 +0200 |
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| 1 # Python bindings for zxing-cpp | |
| 2 | |
| 3 [](https://pypi.org/project/zxing-cpp/) | |
| 4 | |
| 5 | |
| 6 ## Installation | |
| 7 | |
| 8 ```bash | |
| 9 pip install zxing-cpp | |
| 10 ``` | |
| 11 or | |
| 12 | |
| 13 ```bash | |
| 14 python setup.py install | |
| 15 ``` | |
| 16 | |
| 17 **Note**: To enable position independent and multi-symbol DataMatrix detection, the library needs to be compiled with a c++20 compiler. Unfortunately some build environments (currently the 32-bit builds for Linux) used by `cibuildwheel` to generate the binary wheels that are published on [pypi.org](https://pypi.org/project/zxing-cpp/) don't include a c++20 compiler. Best chance to enable proper DataMatrix support in that case is by installing from source: | |
| 18 | |
| 19 ```bash | |
| 20 pip install zxing-cpp --no-binary zxing-cpp | |
| 21 ``` | |
| 22 | |
| 23 In that case or if there is no pre-build wheel available for your platform or python version or if you use `setup.py` directly, a suitable [build environment](https://github.com/zxing-cpp/zxing-cpp#build-instructions) including a c++ compiler is required. | |
| 24 | |
| 25 | |
| 26 ## Usage | |
| 27 | |
| 28 ```python | |
| 29 import cv2, zxingcpp | |
| 30 | |
| 31 img = cv2.imread('test.png') | |
| 32 barcodes = zxingcpp.read_barcodes(img) | |
| 33 for barcode in barcodes: | |
| 34 print('Found barcode:' | |
| 35 f'\n Text: "{barcode.text}"' | |
| 36 f'\n Format: {barcode.format}' | |
| 37 f'\n Content: {barcode.content_type}' | |
| 38 f'\n Position: {barcode.position}') | |
| 39 if len(barcodes) == 0: | |
| 40 print("Could not find any barcode.") | |
| 41 ``` | |
| 42 | |
| 43 To get a full list of available parameters for `read_barcodes` and `write_barcode` as well as the properties of the Barcode objects, have a look at the `PYBIND11_MODULE` definition in [this c++ source file](https://github.com/zxing-cpp/zxing-cpp/blob/master/wrappers/python/zxing.cpp). |