Inverse halftone image processing method, terminal equipment and readable storage medium
An image processing and inverse halftone technology, which is applied in the field of image processing and can solve problems such as low image quality
Inactive Publication Date: 2021-08-06
中国人民警察大学
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[0003] In view of this, the embodiment of the present application provides an inverse halftone image processing method, a terminal device and a readable storage medium to solve the problem of low image quality existing in the current halftone image information recovery technology
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[0027] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
[0028] In order to illustrate the technical solutions described in this application, specific examples are used below to illustrate.
[0029] The research on using neural network to construct conversion model in the research of inverse halftone technology is still in its infancy. In 2008, Huang, Su et al proposed a hybrid neural network model for image halftone and inverse halftone ...
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The invention is suitable for the technical field of image processing, and provides an inverse halftone image processing method, terminal equipment and a readable storage medium, and the method comprises the steps: obtaining a to-be-recovered halftone image; processing the halftone image according to a preset halftone image recovery network model to generate a corresponding initial continuous tone image; and processing the initial continuous tone image according to a preset depth residual network removing model to generate a corresponding target continuous tone image. According to the inverse halftone image processing method, the terminal equipment and the readable storage medium provided by the embodiment of the invention, the halftone image information which is severely degraded is gradually recovered by constructing the evolved deep network model, and the network point or recording point noise information in the recovered continuous tone image information is identified and removed, and thus, a high-quality continuous tone image is obtained.
Description
technical field [0001] The present application belongs to the technical field of image processing, and in particular relates to an inverse halftone image processing method, a terminal device and a readable storage medium. Background technique [0002] The ultimate goal of inverse halftone technology is to convert the halftone image into a high-quality continuous tone image that satisfies people's visual experience. In the process of halftone screening of images, whether it is the dot aggregation orderly dithering screening method or the error diffusion screening method, there will be a nonlinear transformation between the two data spaces due to quantization, and a degraded halftone will be generated. image. Without any prior information such as dot size, screening method, etc., it is a pathological problem to restore a halftone image with a certain amount of information loss to a continuous tone image from the perspective of mathematical analysis, that is, to restore halfto...
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IPC IPC(8): G06T5/00G06N3/04G06N3/08
CPCG06N3/08G06T2207/20081G06T2207/20084G06N3/045G06T5/00
Inventor 张燕
Owner 中国人民警察大学