Vehicle license plate recognition
2014-09-23
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Map the RGB space to YB space, then YB space into black, blue, gray, yellow and white images of the five values method. China plates, by black and blue merge, white, and yellow combined, the image can be further simplified into three values. Based on three-value image of vehicle license plate recognition based on image and character recognition based on backstepping ternary image segmentation of vehicle license plate location. Three intermediate gray image retention can be based on recognition of license plates the background color as a character identifying the color plate background or character you want, which can compensate for uneven or license plate light "dirty" effect on threshold selection for image thresholding can result in loss of image information, help to improve character recognition accuracy. Reverse license plate image segmentation based on three-value position refers to ensuring that images traverse the premise of efficient, by projection based on three-value images i
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