Electronic water meter reading image recognition method and device based on improved threading method

The invention discloses an electronic water meter reading image recognition method and device based on an improved threading method.The method comprises the steps that an electronic water meter reading image is input, and water meter reading digits in the image are recognized through the improved threading method.The improved threading method recognition comprises the steps that firstly, scanning is conducted from the midpoint of the upper boundary of the digits from top to bottom, scanning from the 3/4 midpoint of the left boundary of the number and the 1/4 midpoint of the left boundary from left to right, and determining the number type according to the results of three times of scanning to obtain the cumulative flow indicating value of the detected water meter. According to a traditional threading method identification mode, seven lines need to be scanned, and the identification efficiency is relatively low; according to the improved threading method, only three lines need to be scanned, the image recognit