OpenCV DNN Sample Text Detection

An Efficient and Accurate Scene Text Detector
有效又精確的文字檢測

參考 EAST text detector
下載 frozen_east_text_detection.pb

samples/dnn/(sample)text_detection

Configuration Properties/Debugging/Command Arguments
--model="D:\OpenCV_4\OpenCV OCR\opencv-text-detection\frozen_east_text_detection.pb" --width=640 --height=480

Configuration Properties/Debugging/Environment
PATH=D:\TensorFlow\OCR\tesseract\win64\bin\Debug;D:\Anaconda3\Library\bin;C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v10.0\bin;%PATH%
QT_PLUGIN_PATH=D:\Anaconda3\Library\plugins

Edit text_detection.cpp 使用 OPENCL 加快速度(只能用 Intel, 不能使用 NVIDIA GPU)

    Net net = readNet(model);
    net.setPreferableTarget(DNN_TARGET_OPENCL);