Based on PyImageSearch article: https://pyimagesearch.com/2022/03/14/improving-text-detection-speed-with-opencv-and-gpus/
- Add opencv_text_detector.py using EAST model with CUDA support
- OCRProcessor now uses PaddleOCR first, falls back to OpenCV
- OpenCV text detection: ~97 FPS on GPU vs ~23 FPS on CPU (4x faster)
- No heavy dependencies (PyTorch/PaddlePaddle) required for OpenCV mode
- Auto-downloads EAST model on first use
LemonNexus