文件名称:jg
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Detect tampering in low quality image. Part of a image is extracted , compressed at different quality original image reinserted in to original image.
Calculate sum of square difference between manipulated image and different resaved version compressed at different JPEG quality.
Tampered region is detected by resaving the image at a multitude of JPEG qualities and detect the spatially localized local minima. These minima, called JPEG ghosts.
The Results shows that for higher quality difference between manipulated image and resaved version gives higher accuracy
-Detect tampering in low quality image. Part of a image is extracted , compressed at different quality original image reinserted in to original image.
Calculate sum of square difference between manipulated image and different resaved version compressed at different JPEG quality.
Tampered region is detected by resaving the image at a multitude of JPEG qualities and detect the spatially localized local minima. These minima, called JPEG ghosts.
The Results shows that for higher quality difference between manipulated image and resaved version gives higher accuracy
Calculate sum of square difference between manipulated image and different resaved version compressed at different JPEG quality.
Tampered region is detected by resaving the image at a multitude of JPEG qualities and detect the spatially localized local minima. These minima, called JPEG ghosts.
The Results shows that for higher quality difference between manipulated image and resaved version gives higher accuracy
-Detect tampering in low quality image. Part of a image is extracted , compressed at different quality original image reinserted in to original image.
Calculate sum of square difference between manipulated image and different resaved version compressed at different JPEG quality.
Tampered region is detected by resaving the image at a multitude of JPEG qualities and detect the spatially localized local minima. These minima, called JPEG ghosts.
The Results shows that for higher quality difference between manipulated image and resaved version gives higher accuracy
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