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Digital Images Authentication Technique Based on DWT, DCT and Local Binary Patterns
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DOI：10.3390/s18103372.png)
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Abstract
En 中文
In the last few years, the world has witnessed a ground-breaking growth in the use of digital images and their applications in the modern society. In addition, image editing applications have downplayed the modification of digital photos and this compromises the authenticity and veracity of a digital image. These applications allow for tampering the content of the image without leaving visible traces. In addition to this, the easiness of distributing information through the Internet has caused society to accept everything it sees as true without questioning its integrity. This paper proposes a digital image authentication technique that combines the analysis of local texture patterns with the discrete wavelet transform and the discrete cosine transform to extract features from each of the blocks of an image. Subsequently, it uses a vector support machine to create a model that allows verification of the authenticity of the image. Experiments were performed with falsified images from public databases widely used in the literature that demonstrate the efficiency of the proposed method.
Keywords:
digital images
discrete cosine transforms
forgery detection
image forensics
images splicing
local pattern binary
support vector machines
wavelet transforms
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