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METHOD FOR TAMPERED REGION LOCALIZATION OF COLOR IMAGES BASED ON JPEG COMPRESSION NOISE
METHOD FOR TAMPERED REGION LOCALIZATION OF COLOR IMAGES BASED ON JPEG COMPRESSION NOISE
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机译：JPEG压缩噪声的彩色图像局部区域定位方法
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摘要
A method for tampered region localization of color images based on JPEG compression noise includes: performing JPEG compression on the color image to be tested, then taking the difference between the newly obtained image and the original image, and getting the JPEG compression noise; extracting the high frequency quantization noise from the JPEG compression noise; performing normalization and morphology operation on the high frequency quantization noise, and getting the template for the tampered region localization at last. Since the present invention does not need to embed watermark in the image beforehand, just analyze the image itself, and does not need a lot of training library for machine learning, thus can be used effectively under the environment of content forensics, such as a large scale of data communication, multimedia transmission and so on.
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