A trademark similarity comparison method based on interval extraction
A technology of similarity and trademark, applied in the fields of instruments, computing, electrical digital data processing, etc., can solve the problems of cumbersome trademark retrieval steps, low accuracy and efficiency, and achieve easy visual distinction, improve work efficiency, and reduce complexity. Effect
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Embodiment 1
[0033] Example 1: Please refer to figure 1 As shown, a trademark similarity comparison method based on interval extraction includes the following steps:
[0034] Step S100: Obtain the user's trademark image to be retrieved; the trademark image to be retrieved is sequentially scaled, matrix stored and binarized to obtain the original matrix of the user image;
[0035] The methods for proportional scaling, matrix storage and binarization of the image specifically include:
[0036] Scale the image to a preset fixed size pixel ratio and store it on the MxN grid matrix (the MxN grid matrix means that the number of rows of the matrix is M and the number of columns is N), where one pixel is stored in one grid , and then perform binarization processing to obtain the original matrix of the image.
[0037] The binarization method specifically includes: when the gray value of the grid matrix pixel is less than or equal to the threshold, the grid is defined as 0; when the gray value o...
Embodiment 2
[0051] Embodiment 2: Different from Embodiment 1, please refer to figure 2 As shown, the trademark similarity comparison method based on interval extraction of the present invention also includes the following steps after step S400:
[0052] If the original matrix of the trademark library image that is completely consistent with the original matrix of the user image is not retrieved, perform the following steps:
[0053] Step S500: the original matrix of all trademark library images is reduced successively by increasing levels to obtain the reduced matrix of each level of the trademark library of all trademark library images;
[0054] Step S600: The original matrix of the user image is successively reduced by increasing levels to obtain the reduced matrix of each level of the trademark to be retrieved;
[0055] The step-by-step reduction processing method includes the following steps: combining the logo values extracted from the original matrix of the trademark library ima...
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