Method for establishing calligraphy and painting paper output quality prediction model

Abstract

The invention provides a method for establishing a calligraphy and painting paper output quality prediction model. The method comprises the following steps: measuring calligraphy and painting paper surface performance parameters; measuring surface curtain parameters of the calligraphy and painting paper; establishing a total variation model in an MATLAB environment; determining values in the totalvariation model parameters; measuring a chromatic value of the calligraphy and painting paper subjected to curtain removal processing, and calculating a chromatic aberration value between the chromatic value and a standard set value; establishing a GRNN prediction model; constructing a GRNN prediction model to train a data sample; obtaining an optimal smoothing factor; verifying prediction accuracy. According to the method, the total variation model can be used for removing the paper curtain lines of calligraphy and painting, a color difference evaluation mode more conforming to visual characteristics is obtained, a printing output quality prediction model is constructed, and the prediction result is accurate and reliable.

Description

technical field [0001] The invention mainly relates to the field of printing adaptation prediction, in particular to a method for establishing an output quality prediction model of calligraphy and painting paper. Background technique [0002] The current research on the prediction model of paper printability mostly uses surface physical parameters such as roughness, whiteness, opacity, weight, and gloss to predict the final output quality, while the research on the printability prediction of calligraphy and painting paper is relatively limited. few. During the copying and molding process of calligraphy and painting paper, a unique bamboo curtain fishing paper molding process is adopted, and light and dark curtain patterns are produced on the surface of the paper, and the texture has obvious periodicity and directionality. As a unique attribute of calligraphy and painting paper, the curtain pattern will eventually affect the output quality of the paper. The gap between curt...

AI Technical Summary

Problems solved by technology

The curtain pattern gap can be regarded as image background noise, which will interfere with the evaluation of the color difference of calligraphy and painting paper, resulting in problems such as poor accuracy of the results and inconsistencies with the visual senses

[0003] Based on the research on the influence of texture information on color difference evaluation, the research objects are mostly fabrics, leather, plates, etc. Since the curtain pattern in calligraphy and painting paper belongs to a type of signal that needs to be blanked in color difference evaluation, and the curtain pattern is used for printing on calligraphy and painting paper. Less detailed reporting of quality studies

And the fabric texture extraction method combining FFT and Gabor filter in the prior art, the texture extraction effect of this method is better, but it is not suitable for the multi-channel color feature extraction required for color difference evaluation

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