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Image processing method and system, storage medium and computing equipment

An image processing and image technology, applied in image data processing, image data processing, computing, etc., can solve the problem that image processing methods cannot cope with attacks such as rotation, scaling, translation, mirroring, cutting, collage, and compression

Pending Publication Date: 2021-09-14
ALIBABA GRP HLDG LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides an image processing method and system, a storage medium, and a computing device to at least solve the problem that the image processing method in the related art cannot deal with attacks such as rotation, scaling, translation, mirroring, cutting, collage, and compression. question

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  • Image processing method and system, storage medium and computing equipment
  • Image processing method and system, storage medium and computing equipment
  • Image processing method and system, storage medium and computing equipment

Examples

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Embodiment 1

[0035] Common attacks on images in real life include rotation, scaling, translation, mirroring, cutting, collage, compression, etc. Related digital image watermarking schemes are often difficult to resist the combined attacks of the above attacks, resulting in digital image watermarking failure and digital image security. The security is low, and there are still problems such as image copyright ownership, anti-counterfeiting and anti-tampering.

[0036] In order to solve the above problems, the embodiment of the present application provides an image processing method. Using the characteristics of Fourier transform, a watermark template method based on discrete Fourier transform is proposed, which has strong robustness and can deal with rotation, Attacks such as scaling, translation, mirroring, cutting, collage, compression, etc., and can give the image's rotation scaling factor, is a watermarking method for image correction. Moreover, this method is a watermark template scheme...

Embodiment 2

[0187] According to an embodiment of the present application, an image processing method is also provided. Figure 11 It is a flowchart of an image processing method according to Embodiment 2 of the present application. Such as Figure 11 As shown, the method includes the following steps:

[0188] Step S112, acquiring a detection image and a binary sequence, wherein the binary sequence is used to generate a watermark contained in the detection image.

[0189] Specifically, the detection image in the above step may be an image that needs to be detected whether it contains a watermark, it may be the above target image, or it may be other images. Since the watermark embedded in the original image adopts a circular shape, the target magnitude image may be a polar coordinate magnitude image.

[0190] It should be noted that the construction of the binary sequence satisfies at least one of the following conditions: the traversal result obtained from traversing from the head of th...

Embodiment 3

[0213] According to an embodiment of the present application, an image processing device for implementing the above image processing method is also provided, such as Figure 12 As shown, the apparatus 1200 includes: an acquisition module 1202 and a modification module 1204 .

[0214] Wherein, the obtaining module 1202 is used to obtain the original image and a binary sequence, wherein the binary sequence is used to generate a watermark embedded in the original image; the modification module 1204 is used to perform the first Fourier transform of the original image based on the binary sequence The coefficients are modified to obtain the target image, wherein the target image contains a watermark.

[0215] It should be noted here that the above acquisition module 1202 and modification module 1204 correspond to steps S302 to S304 in Embodiment 1, and the examples and application scenarios realized by the two modules are the same as those of the corresponding steps, but they are no...

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Abstract

The invention discloses an image processing method and system, a storage medium and computing equipment. The method comprises the steps: acquiring an original image and a binary sequence, wherein the binary sequence is used for generating a watermark embedded into the original image; and modifying the first Fourier transform coefficient of the original image based on the binary sequence to obtain a target image which contains a watermark. The technical problem that an image processing method in the related technology cannot cope with attacks such as rotation, zooming, translation, mirroring, cutting, collaging and compression is solved.

Description

technical field [0001] The present application relates to the technical field of image watermarking, and specifically relates to an image processing method and system, a storage medium, and a computing device. Background technique [0002] With the rapid development of the Internet, the speed of information dissemination has far exceeded any previous period. As a common information carrier, digital image is widely used in today's digital information age. However, digital images are easy to spread, easy to copy, and easy to be tampered with. In practical applications, there are still problems such as image copyright ownership, anti-counterfeiting and anti-tampering that are difficult to define. In order to solve the above problems, digital image watermarking technology is proposed. Digital image watermarking technology is to embed some identification information into digital images without affecting the use value of the original carrier. Through the information hidden in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/00
CPCG06T1/005
Inventor 刘永亮范航宇
Owner ALIBABA GRP HLDG LTD
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