Method for generating beautified two-dimensional code
A two-dimensional code and code word technology, which is applied to record carriers, instruments, computer parts, etc. used in machines, can solve the problems of inability to see the background clearly, affect the visual effect, etc., so as to improve the visual effect and maintain the visual integrity. Effect
Active Publication Date: 2015-11-18
NANJING FENGLIJIAN IT CO LTD
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Problems solved by technology
In the existing similar two-dimensional code beautification method, there are more dark and light noise modules on the faces of the characters in the background image, and some of them can’t even see the background clearly, which greatly affects the visual effect
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[0046] The present invention will be further described below in conjunction with drawings and embodiments.
[0047] Such as figure 1 As shown, a method for generating a beautified two-dimensional code is characterized in that it comprises the following steps:
[0048] Step 1. Construct codeword distribution map
[0049] According to the QR code standard [ISO / IEC180042006], there are certain rules for the division of RS blocks in a certain version and the distribution of codewords in each RS block. This method utilizes the arrangement rule of the code words, marks the code words in each RS block, and constructs a code word distribution map. The RS block is a code word grouping structure defined in the two-dimensional code. This type of two-dimensional code has a built-in RS error correction algorithm to generate an error correction codeword, and place the error correction codeword after the data codeword. The data codewords and error correction codewords in each group form ...
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The invention discloses a method for generating a beautified two-dimensional code. A code word distribution map is generated according to an RS block in the two-dimensional code structure and the code word distribution characteristic of the RF block; a significance detection technology is utilized to detect a region of interest in a background picture to generate a significance graph; the code word distribution map is combined with the significance graph to calculate the significance value of each code word block, a code word order table is generated according to the significance values, m frontmost code cords are selected to form a replaceable region based on a redundancy principle of a error correction coding mechanism, and the rest part serves as a non-replaceable region; background images of code word modules in the replaceable region are directly replaced; and modules in the non-replaceable region are replaced in the threshold-based layered replacement rule. In addition, The shape of a URL of a dual rectangular shape in the function region is transformed. Thus, content of the two-dimensional code is more diverse and interesting, the two-dimensional code is more customized, and the visual effect of the appearance of the two-dimensional code is improved.
Description
technical field [0001] The invention belongs to the technical field of two-dimensional codes, and in particular relates to a method for generating beautified two-dimensional codes. Background technique [0002] Quick Response Code (QuickResponseCode), referred to as QR code, is a two-dimensional barcode invented by Densowave Corporation of Japan in 1994. QR code was approved by ISO international standard ISO / IEC18004 in June 2000. QR code is an open standard with open specifications. QR codes usually consist of a series of black and white square modules arranged according to certain rules to form a matrix. QR code has a larger storage information capacity than one-dimensional barcode, rich coded character set, strong error correction ability, and unique positioning function can resist rotation. With the popularity of smart phones with cameras, QR code applications are becoming more and more popular, such as electronic coupons, train tickets, scanning code payment, billboar...
Claims
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Inventor 李黎吴国峰
Owner NANJING FENGLIJIAN IT CO LTD