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License Plate Detection
- Find the x-position of the blue vertical rectangle using a mask in the HSV color space.
- Extract the white elements using a mask in the HSV color space.
- Sort the white elements based on their area and select the ten largest ones.
- Accept the first white element that meets the conditions of area, x-position, and number of corners.
- Perform a perspective transformation on the selected element.
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Character Recognition
- Use adaptive thresholding.
- Sort the found contours based on their area and select the ten largest ones.
- Sort the contours based on their x-position.
- Extract individual characters from the image.
- Compare the extracted characters with the template and select the one with the highest correlation.
- Add the detected characters to the list.