Circular seal character recognition method and device, computer equipment and storage medium
A character recognition and seal technology, applied in the field of image processing, can solve problems such as poor recognition effect, inability to accurately segment characters, and difficulty in character segmentation
Pending Publication Date: 2021-11-09
GRG BAKING EQUIP CO LTD
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Problems solved by technology
However, this scheme is more dependent on the segmentation of characters. Character segmentation has caused certain limitations to the recognition. For the situation where character segmentation is difficult and cannot be accurately segmented, the recognition effect is poor.
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[0045] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.
[0046] In one embodiment, as figure 1 As shown in the figure, a method for character recognition of circular seals is provided, and the method is applied to a terminal as an example for description. It can be understood that the method can also be applied to a server, and can also be applied to a system including a terminal and a server, and Through the interaction between the terminal and the server. In this embodiment, the method includes the following steps S102 to S110.
[0047] S102: Acquire an image to be recognized, where the image to be recognized includes a ...
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The invention relates to a circular seal character recognition method and device, computer equipment and a storage medium. The method comprises the following steps: collecting a to-be-recognized image, wherein the to-be-recognized image comprises a circular seal; performing color segmentation on the to-be-recognized image to obtain the central position and the radius of the circular seal, and extracting a seal area image from the to-be-recognized image according to the central position and the radius of the circular seal; unfolding a circular seal in the seal area image into a rectangle by utilizing coordinate transformation to obtain an unfolded image, and intercepting a character area image from the unfolded image; collecting a starting position and an ending position of a character sequence from the character area image, and transforming the character area image based on the starting position and the ending position to obtain a character sequence image; and performing character recognition on the character sequence image to obtain a seal character recognition result. By adopting the method, the seal character recognition effect can be improved.
Description
technical field [0001] The present application relates to the technical field of image processing, and in particular, to a method, device, computer equipment and storage medium for character recognition of circular seals. Background technique [0002] In the relevant automatic electronic equipment of financial institutions, the identification of character content information on seals has a wide range of application scenarios. When the seal is affixed, there are problems such as indeterminate orientation, lack of ink on the seal leading to missing characters, or background interference caused by the seal on the text, which increases the difficulty of identifying the content of the characters on the seal. [0003] The current circular seal character recognition scheme firstly expands the circular seal into a rectangle, then divides each character, and finally uses the image features to perform pattern recognition on each character to identify the character content information ...
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IPC IPC(8): G06K9/32G06K9/34G06K9/62G06N3/04G06N3/08G06T7/62G06T7/66
CPCG06N3/08G06T7/62G06T7/66G06T2207/10004G06T2207/10028G06T2207/20081G06T2207/20084G06N3/044G06N3/045G06F18/241
Inventor 周小龙王锟孙燕廖梓豪
Owner GRG BAKING EQUIP CO LTD