Method and device for detecting printing quality
A technology for printing quality and detecting dots, which is applied in the field of image processing and can solve problems such as difficulty in identifying the problem, distortion of dot patterns, and inability to find the root cause of the problem.
Active Publication Date: 2019-12-03
BEIJING VISION BRILLIANCE TECH CO LTD
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Problems solved by technology
[0003] In the process of printing dot graphics, the dot graphics may be distorted, and the printing results may be wrong due to some environments or improper operation. However, due to too many dots in the dot graphics, it is difficult to distinguish the problem with the naked eye, and for some For technicians who do not understand the rules of dot graphics, it is impossible to find the root of the problem
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[0059] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work all belong to the protection scope of the present invention.
[0060] refer to figure 1 , which shows a schematic flow chart of a method for detecting printing quality provided by an embodiment of the present invention. In this embodiment, the method includes:
[0061] S101: Obtain a data point group of a point pattern from the point pattern to be detected;
[0062] In this embodiment, the detection process of the data point group may include:
[0063] Binarize the area where the code point is located to obtain a ...
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The invention discloses a method and device for detecting printing quality. The method comprises the following steps: acquiring a data point group of a dot pattern from a to-be-detected dot pattern; extracting information of each nominal position in the dot pattern according to the data point group in the dot pattern; detecting the printing index of the dot pattern according to code points of thedot pattern, the nominal position and a preset coding rule of the dot pattern; and determining the printing quality of the dot pattern according to the printing index. In this way, automatic detectionof the printing quality of the dot pattern is realized without the need for manual intervention, and even the technical personnel who do not know the dot pattern generation rule can use the method inthe embodiment of the invention to detect the quality of the dot pattern.
Description
technical field [0001] The invention relates to the field of image processing, in particular to a method and device for detecting printing quality. Background technique [0002] With the development of graphic coding technology, in recent years, optical geometric figures arranged in certain rules to record characteristic data have appeared on various printing media in recent years. These figures usually use blocks of different colors, or consist of sparse dot matrix Composition, these geometric patterns can be used to record characteristic data symbol information, and the graphics composed of sparse dot matrix are dot graphics. [0003] In the process of printing dot graphics, the dot graphics may be distorted, and the printing results may be wrong due to some environments or improper operation. However, due to too many dots in the dot graphics, it is difficult to distinguish the problem with the naked eye, and for some For technicians who do not understand the rules of dot...
Claims
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Login to View More IPC IPC(8): G01N21/956B41F33/00
CPCG01N21/95607B41F33/0036G01N2021/95615
Inventor 刘燕刘春祥
Owner BEIJING VISION BRILLIANCE TECH CO LTD