v0.4.0 - Screen Capture, MJPEG, HTTP Images & QR/Barcode Decoding

What's New

New Features

Screen Capture

• screen_list_monitors - List all available monitors/displays
• screen_save_image - Capture full screenshot of a monitor
• screen_save_region - Capture a specific region of the screen

MJPEG Streams

• mjpeg_save_image - Capture frames from MJPEG streams (IP cameras, ESP32-CAM, Arduino)
• mjpeg_check_stream - Validate MJPEG stream availability

HTTP Images

• http_save_image - Download and save images from any URL
• http_check_image - Check if a URL points to a valid image

QR/Barcode Decoding (requires libzbar)

• decode_qr - Decode QR codes from images
• decode_barcode - Decode barcodes (EAN, UPC, Code128, etc.)
• decode_all - Decode all codes from an image
• decode_and_annotate - Decode and save annotated image with bounding boxes

Improvements

• Added input validation and sanitization across all modules
• Added security headers to streaming endpoints
• Credentials are now masked in error messages and logs
• Better error handling with descriptive messages

New Dependencies

• requests - HTTP client for MJPEG and HTTP image tools
• mss - Cross-platform screen capture
• Pillow - Image processing
• pyzbar - QR/barcode decoding (requires libzbar system library)

Installation Note for QR/Barcode Features

The decode tools require the libzbar system library:

• macOS: brew install zbar
• Linux: apt install libzbar0
• Windows: Download from https://zbar.sourceforge.net/