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Method for identifying image authenticity

An identification method and authenticity technology, which can be used in image analysis, image data processing, instruments, etc., to solve problems such as degraded image quality, abnormal application of images, and degradation of digital image quality.

Inactive Publication Date: 2015-06-03
706 INST SECOND RES INST OF CHINAAEROSPACE SCI & IND
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. Digital watermarking technology will reduce image quality
Digital watermarking technology embeds copyright information into digital images in a visible or non-visual manner, which will lead to a decrease in the quality of digital images, and may cause the normal application of images in professional fields such as medical imaging and photography.

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  • Method for identifying image authenticity

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Embodiment Construction

[0024] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] figure 1 Shown is the block diagram of the image authenticity identification system of the present invention, as figure 1 As shown, the digital image authenticity verification system includes 6 modules, including: a computer-generated image detection module 11, which is used to classify the images to be tested, and distinguish the computer-generated images from the images captured by the camera. The color interpolation filter detection module 12 is configured to divide the image captured by the camera into regions based on the camera color interpolation matrix, and mark suspicious regions. The detection module 13 based on the variable window is used for detecting the JPEG compression feature of the variable win...

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Abstract

The invention discloses a method for identifying the image authenticity. The method comprises the following steps: step 1, performing computer generated feature detection on an image to be detected; step 2, performing color interpolation filter detection on the image passing the computer generated feature detection, if a detection value is greater than a threshold, judging the image as an unreal image, and if the detection value is smaller than a passing threshold, executing the step 3; step, performing the detection based on a variable window on the image passing the color interpolation filter detection, if a detection value is greater than the threshold, judging the image as the unreal image, and if the detection value is smaller than the passing threshold, executing the step 4; step 4, performing the detection based on a sliding window on the image passing the color variable window detection, if a detection value is greater than the threshold, judging the image as the unreal image, and if the detection value is smaller than the passing threshold, executing the step 5; step 5, performing consistency detection on the image, if a detection value is greater than the threshold, judging the image as the unreal image, and if the detection value is smaller than the passing threshold, judging the image as a real image.

Description

technical field [0001] The invention belongs to the technical field of digital content security, in particular to a digital image authenticity identification method based on JPEG compression features. Background technique [0002] Digital images are one of the most important information carriers in the Internet age, and because the information carried by images is more intuitive and credible, digital images are tending to replace text as the primary information carrier. Accompanied by the rapid development of digital images, there are also digital image processing technologies. At present, there are many mature image processing software. The emergence of professional image processing software such as Adobe Photoshop, Visio Viewer, and iPhoto brings great convenience to ordinary users. It also brings hidden dangers to the use of digital images. The function of image processing software is very powerful, and the functions that can be realized are not limited to the modificati...

Claims

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Application Information

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IPC IPC(8): G06T7/00
Inventor 孟宪哲段翼真毛俐旻曾淑娟黄晨
Owner 706 INST SECOND RES INST OF CHINAAEROSPACE SCI & IND
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