An Image Simulation Generation Method of Printing Effect of Dot Matrix Characters

Abstract

The invention discloses an image simulation generation method for dot-matrix character printing effect. First, needle-type characters are generated, which includes reading a user-specified printing character generation parameter from a program interface, reading a font file with a specified font size from a font library, parsing The dot matrix information of its font library is used to generate an image of the specified text content, and the dot matrix distribution is obtained from the sampling technology, and the random stroke generation algorithm is used to draw each printing point of the dot matrix character; then the printing defects are simulated, including random parameters and random selection control. Simulation of lens blur, noise simulation, over-ink effect simulation, random breakage simulation, texture interference simulation, etc.; the final generated simulation image is scaled to a set size and output to a file as a sample. The invention utilizes the server to automatically generate more data samples according to the statistical characteristics of the new data in the idle period, and forms the intelligent iteration and update of the bill character recognition algorithm through autonomous incremental training and 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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