kopia lustrzana https://github.com/animator/learn-python
Merge 4699934a85 into 406004d9c9
Soumyadev Saha
GitHub
commit
519c751b29
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import tkinter as tk
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from tkinter import messagebox, filedialog
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import qrcode
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from PIL import Image, ImageTk
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import cv2
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from pyzbar.pyzbar import decode
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class QRCodeApp:
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def __init__(self, root):
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self.root = root
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self.root.title("QR Code Encoder and Decoder")
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# Main frame that contains the primary buttons
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self.main_frame = tk.Frame(root)
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self.main_frame.pack(pady=20)
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self.main_frame.pack(padx=30)
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# Button to show the encode screen
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self.button1 = tk.Button(self.main_frame, text="Encode Text to QR Code", command=self.show_encode_screen)
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self.button1.pack(pady=10)
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# Button to show the decode screen
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self.button2 = tk.Button(self.main_frame, text="Decode QR Code from Camera", command=self.show_decode_screen)
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self.button2.pack(pady=10)
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self.encode_frame = None
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self.decode_frame = None
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def show_encode_screen(self):
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# Clear the main frame and show the encode frame
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self.clear_frame()
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self.encode_frame = tk.Frame(self.root)
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self.encode_frame.pack(pady=20)
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self.encode_frame.pack(padx=30)
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# Text box to enter text for QR code
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self.text_box = tk.Entry(self.encode_frame, width=50)
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self.text_box.pack(pady=10)
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# Button to convert text to QR code
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self.convert_button = tk.Button(self.encode_frame, text="Convert", command=self.convert_to_qr)
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self.convert_button.pack(pady=10)
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# Button to go back to the main screen
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self.back_button = tk.Button(self.encode_frame, text="Back", command=self.show_main_screen)
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self.back_button.pack(pady=10)
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def convert_to_qr(self):
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text = self.text_box.get()
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if text:
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# Generate QR code from text
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qr = qrcode.make(text)
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# Save the QR code as an image file
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file_path = filedialog.asksaveasfilename(defaultextension=".png", filetypes=[("PNG files", "*.png")])
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if file_path:
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qr.save(file_path)
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messagebox.showinfo("Success", "QR Code saved successfully!")
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else:
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messagebox.showwarning("Input Error", "Please enter text to convert to QR Code.")
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def show_decode_screen(self):
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# Clear the main frame and show the decode frame
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self.clear_frame()
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self.decode_frame = tk.Frame(self.root)
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self.decode_frame.pack(pady=10)
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self.decode_frame.pack(padx=50)
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# Button to start the camera for QR code scanning
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self.start_camera_button = tk.Button(self.decode_frame, text="Start Camera", command=self.start_camera)
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self.start_camera_button.pack(pady=0)
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# Button to go back to the main screen
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self.back_button = tk.Button(self.decode_frame, text="Back", command=self.show_main_screen)
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self.back_button.pack(pady=10)
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def start_camera(self):
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cap = cv2.VideoCapture(0)
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found_qr = False
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while not found_qr:
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ret, frame = cap.read()
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if not ret:
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break
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# Decode QR code from the camera frame
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decoded_objects = decode(frame)
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for obj in decoded_objects:
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points = obj.polygon
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if len(points) > 4:
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hull = cv2.convexHull(points, returnPoints=True)
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else:
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hull = points
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n = len(hull)
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for j in range(0, n):
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cv2.line(frame, tuple(hull[j]), tuple(hull[(j+1) % n]), (255, 0, 0), 3)
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# Extract and display the decoded text
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qr_text = obj.data.decode("utf-8")
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found_qr = True
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cv2.putText(frame, qr_text, (50, 50), cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 255, 0), 2)
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self.display_decoded_text(qr_text)
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cv2.imshow("QR Code Scanner", frame)
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if cv2.waitKey(1) & 0xFF == ord('q'):
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break
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cap.release()
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cv2.destroyAllWindows()
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def display_decoded_text(self, text):
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# Show the decoded text in a message box
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messagebox.showinfo("Decoded Text", text)
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# Save the decoded text to a text file
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file_path = filedialog.asksaveasfilename(defaultextension=".txt", filetypes=[("Text files", "*.txt")])
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if file_path:
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with open(file_path, "w") as f:
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f.write(text)
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messagebox.showinfo("Success", "Decoded text saved successfully!")
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def show_main_screen(self):
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# Clear the current frame and show the main frame
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self.clear_frame()
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self.main_frame.pack(pady=20)
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self.main_frame.pack(padx=30)
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# Re-create the buttons for encoding and decoding
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self.button1 = tk.Button(self.main_frame, text="Encode Text to QR Code", command=self.show_encode_screen)
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self.button1.pack(pady=10)
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self.button2 = tk.Button(self.main_frame, text="Decode QR Code from Camera", command=self.show_decode_screen)
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self.button2.pack(pady=10)
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self.encode_frame = None
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self.decode_frame = None
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def clear_frame(self):
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# Clear all widgets from the current frame
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for widget in self.root.winfo_children():
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widget.pack_forget()
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widget.destroy()
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self.main_frame = tk.Frame(self.root)
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self.main_frame.pack(pady=20)
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if __name__ == "__main__":
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root = tk.Tk()
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app = QRCodeApp(root)
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root.mainloop()
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# QR Code Encoder and Decoder Application
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## Overview
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This project is a QR code encoder and decoder application built using Python and Tkinter. The application allows users to:
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1. Encode text into a QR code and save it as an image file.
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2. Decode QR codes using a webcam and save the decoded text to a file.
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## Features
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- **Encode Text to QR Code**: Converts user-provided text into a QR code and saves it as a PNG image.
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- **Decode QR Code from Camera**: Captures QR codes using the webcam, decodes the text, and allows saving the decoded text to a file.
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## Requirements
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- Python 3.x
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- Tkinter
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- qrcode
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- Pillow (PIL)
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- OpenCV
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- pyzbar
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## Installation
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1. **Install Python**: Make sure you have Python 3.x installed on your system.
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2. **Install Required Libraries**:
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```bash
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pip install qrcode[pil]
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pip install pillow
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pip install opencv-python
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pip install pyzbar
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```
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## Usage
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1. **Run the Application**:
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```bash
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python QRCodeApp.py
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```
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2. **Encode Text to QR Code**:
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- Click the "Encode Text to QR Code" button.
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- Enter the text you want to encode in the text box.
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- Click the "Convert" button.
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- Save the generated QR code image.
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3. **Decode QR Code from Camera**:
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- Click the "Decode QR Code from Camera" button.
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- Click "Start Camera" to begin scanning.
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- The application will decode the QR code and display the text.
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- Save the decoded text to a file.
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## Project Structure
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- `qr_code_project.py`: Main application script containing the Tkinter GUI and logic for encoding and decoding QR codes.
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- `readme.md`: Project documentation.
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## Libraries Used
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- **Tkinter**: For the graphical user interface.
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- **qrcode**: To generate QR codes from text.
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- **Pillow (PIL)**: For handling image files.
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- **OpenCV**: For capturing video from the webcam and processing frames.
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- **pyzbar**: For decoding QR codes from images.
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## How It Works
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### Encoding QR Code
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1. The user enters text into a text box.
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2. The text is converted to a QR code using the `qrcode` library.
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3. The generated QR code is saved as a PNG image.
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### Decoding QR Code
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1. The user starts the camera using the OpenCV library.
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2. Frames from the webcam are captured and processed to detect QR codes.
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3. Detected QR codes are decoded using the `pyzbar` library.
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4. The decoded text is displayed to the user and can be saved to a text file.
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## License
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This project is licensed under the MIT License.
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# List of sections
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- [Section title](filename.md)
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- [QR Code Encoder Decoder](./QRCodeEncoderDecoder/readme.md)
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