The research on the existing license plate recognition algorithm finds an algorithm suitable for running on AndroidandIOS platform in many algorithms. First, the camera of the smartphone to obtain the color image of the license plate, and then the captured image processing, including through the YUV model grayscale, piecewise linear transformation of gray-scale, binary, Roberts operator edge detection, mathematical morphology processing, and then through the Hough Transform carries on the license plate correction, then uses the double projection and the gray scale jumps the method realizes the license plate localization, the segmentation, finally through the template matching realizes the license plate recognition.
Moving end sweep sweep the license plate, identify the technical function of the car grade
1. The whole card recognition rate is up to 99.7%, especially the Chinese character recognition is far ahead of similar products;
2. recognition of fast, extremely optimized license plate location and recognition algorithm ;
3. Identification of the number of license plate types: Blue Card, yellow cards, trailer plate, the new forces, police license, the newly armed police plates, coach license plate, the embassy license plate, agricultural license plate, personalized license plate, Hong Kong and Macao entry and exit plates, Australian Taiwan license plate, civil Aviation license plate, consulate license plate, new Energy license plate
4. license plate width requirements are low;
5. Pure C code writing, can be applied across platforms.
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The technical function of license plate recognition algorithm realization