Image simulation generation method for dot matrix character printing effect

Abstract

The invention discloses an image simulation generation method for a dot matrix character printing effect. The method comprises the steps of, first, generating needle characters, namely, reading printing character generation parameters specified by a user from a program interface, reading a font file of a specified font size from a font library, analyzing font library dot matrix information of thefont file to generate an image of specified text content, obtaining a dot matrix distribution condition from the image by utilizing a sampling technology, and drawing each printing point of dot matrixcharacters by utilizing a random stroke generation algorithm; then simulating printing defects, which comprises random parameter and random selection control lens fuzzy simulation, noise simulation,excessive ink effect simulation, random damage simulation, texture interference simulation and the like; and finally, zooming the generated simulation image to a set size, and outputting the simulation image as a sample to a file. According to the invention, more data samples are automatically generated according to the statistical characteristics of new data in an idle period by using the server,and intelligent iteration and updating of the bill character recognition algorithm are formed through autonomous incremental training learning.

Description

technical field [0001] The invention relates to the field of data set generation for Chinese character image recognition processing, in particular to an image simulation generation method for printing effect of dot matrix characters. Background technique [0002] Machine-printed bills are an important part of modern life. Common machine-printed bills include invoices, train tickets, cash register slips, bank receipts, etc. Paper bills play an important role as a valid certificate for goods or services, and are still irreplaceable in the short term. However, it is difficult to effectively manage a large number of fragmented bills, and its electronic trend is an inevitable development direction. At this current stage, it is urgent to use digital image recognition technology to establish a mapping mechanism from paper media to digital semantic information to achieve cross-media information sharing and dissemination. [0003] Due to the small size and low printing quality of t...

AI Technical Summary

Problems solved by technology

At the current stage, the collection of bill information still adopts the traditional manual collection and entry method, and manual collection and entry requires a lot of cost and time, which not only increases operating costs, but also is inefficient, resulting in the inability to transmit bill information in a timely and effective manner, resulting in Unnecessary outflow of funds, affecting business efficiency

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