Added page_qr_ocr

Author: yushulx

examples/official/page_qr_ocr/README.md

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+# Page QR + Page Number OCR
+
+This folder contains a small PySide6 desktop app for fixed-layout pages where a QR code sits near the top-left corner and the printed page number appears just to the left of it.
+
+The project uses a single Dynamsoft Capture Vision template to do both tasks in one pass:
+
+- decode the QR code
+- run OCR in a barcode-referenced ROI
+- choose the most likely page number from the OCR hits
+- draw both results as overlays in the GUI
+
+## Project Layout
+
+- `app.py` — Python desktop app and scanner logic
+- `page_qr_ocr_template.json` — combined barcode + OCR template
+- `requirements.txt` — runtime and synthetic-data dependencies
+- `synthetic/` — generated images plus `manifest.json`
+
+## Requirements
+
+- Python 3.9+
+- `dynamsoft-capture-vision-bundle>=3.4.2001`
+- `PySide6>=6.5`
+- `opencv-python>=4.8`
+- `numpy>=1.24`
+
+## Install
+
+```bash
+pip install -r requirements.txt
+```
+
+## Run the GUI
+
+```bash
+python app.py
+```
+