Four-color high-fidelity printing process capable of realizing network low-precision pictures

Abstract

The invention discloses a four-color high-fidelity printing process capable of realizing network low-precision pictures, belongs to the technical field of printing, and can realize the printing of a network 'low-precision picture, four-color printing high-definition and high-fidelity picture album 'by means of image collection, conversion, interpolation amplification and image leveling. Accordingto the method, the low-precision RGB picture can be randomly selected, and certainly, the high-precision RGB picture is better, that is, the selection range is wider; the high-fidelity printing colorgamut is expanded by more than 30% compared with the conventional four-color printing, so that the capability of expressing bright colors is greatly improved, the printing color gradation linearity ismore accurate, and the capability of expressing color depth change is enhanced; the adjustment of the brightness order linearity not only enables the color change in the dark tone color to be more obvious, but also enables the stereoscopic impression of a printed image to be enhanced.

Description

technical field [0001] The invention belongs to the technical field of printing, and in particular relates to a printing process capable of realizing "low-precision pictures, four-color printing of high-definition, high-fidelity albums" on the Internet. Background technique [0002] For a long time, due to various reasons such as shooting and storage, the compiled and printed pictures of many important events, ancient calligraphy and paintings and other precious historical video materials can only be downloaded from some large-scale photography and picture websites, collectors, museums, auction companies and other publicity websites. The small picture has low precision and basically cannot be used for album printing. [0003] At the same time, for decades, CMYK traditional four-color printing has become a treasure in the printing industry, and it has been used for a long time. However, when painters, collectors, and photographers hold a picture album exuding the fragrance of...

AI Technical Summary

Problems solved by technology

Therefore, compared with the colors of natural scenery and ancient calligraphy and painting, traditional four-color printing reproduces heavy colors, large tonal distortion, unreal layering, and weak three-dimensional effect. Even if the picture is accurate enough, the printing quality is still not high.