Character segmentation method, device, equipment and storage medium
A character segmentation and character technology, which is applied in the field of image processing, can solve problems such as character segmentation errors and affect character recognition, and achieve the effect of small noise influence, high accuracy, and simple slope calculation
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Embodiment 1
[0034] figure 1 It is a flow chart of the character segmentation method provided by Embodiment 1 of the present invention. This embodiment is applicable to character segmentation in the process of character recognition, especially applicable to character images with prior information, such as banknote images, license plate images, etc. The method can be performed by a character segmentation device, such as a device with computing and processing functions. Such as figure 1 As shown, the method specifically includes the following steps:
[0035] Step 110, binarize the character image to be segmented to obtain a binary image.
[0036] Wherein, the image of the character to be segmented may be an image whose boundary (upper boundary, lower boundary, left boundary and right boundary) of the entire character has been determined, and the method for determining the boundary of the character may use an existing method. The existing binarization method can be used to binarize the ima...
Embodiment 2
[0058] This embodiment provides a character segmentation method on the basis of the first embodiment above, and for character images to be segmented for which the overall character boundary has not been determined, the character boundary can also be determined by using the slope of the curve. Compared with Embodiment 1, this embodiment adds the step of determining the character boundary according to the slope of the curve, wherein, the left boundary and the right boundary of the character can be determined according to the graph of the column number and the integral column sum, and the left boundary and the right boundary of the character can be determined according to the row number and the integral sum. The graph of determines the upper and lower boundaries of the character. In this embodiment, the repeated steps in the first embodiment will not be explained in detail, please refer to the first embodiment for details.
[0059] Such as Image 6 As shown, the character segmen...
Embodiment 3
[0083] This embodiment provides a character segmentation device, which can be used to implement the character segmentation methods described in the first and second embodiments above. Such as Figure 7 As shown, the device includes: an image binarization module 710 , an integral column sum calculation module 720 , a graph creation module 730 , a segmentation position determination module 740 and a character segmentation module 750 .
[0084] The image binarization module 710 is used to binarize the character image to be segmented to obtain a binary image;
[0085] Integral column sum calculation module 720, for calculating the integral column sum of each column in the binary image respectively, wherein the integral column sum is the sum of the number of foreground points of the current column and all columns before it;
[0086] Graph building module 730, used for setting up a graph according to the integral column sum of each column;
[0087] The segmentation position determ...
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