Reduction of JPEG Artifacts using BSDEs
نویسندگان
چکیده
10.24132/CSRN.2021.3101.1
منابع مشابه
Reduction of blocking artifacts in JPEG compressed images
Image compression is a very important issue for several applications in the area of multimedia communications, the objective being reduction of storage and transmission costs. Many efficient coding techniques have been developed for various applications. Amongst them, the Joint Photographic Experts Group (JPEG) has been recommended for compression of continuous tone still images. However, the r...
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In JPEG (DCT based) compresses image data by representing the original image with a small number of transform coefficients. It exploits the fact that for typical images a large amount of signal energy is concentrated in a small number of coefficients. The goal of DCT transform coding is to minimize the number of retained transform coefficients while keeping distortion at an acceptable level.In ...
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JPEG-compatibility steganalysis detects the presence of embedding changes using the fact that the stego image was previously JPEG compressed. Following the previous art, we work with the difference between the stego image and an estimate of the cover image obtained by recompression with a JPEG quantization table estimated from the stego image. To better distinguish recompression artifacts from ...
متن کاملReduction of Blocking Artifacts Using Side Information
Block-based image and video coding systems are used extensively in practice. In low bitrate applications, however, they suffer from annoying discontinuities, called blocking artifacts. Prior research shows that incorporating systems that reduce blocking artifacts into codecs is useful because visual quality is improved. Existing methods reduce blocking artifacts by applying various post-process...
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There is a wide range of methods for lossy compression, but among those most used we find JPEG (Joint Photographic Experts Group) for still images. In this paper we present an intelligent system which is capable of restoring a compressed JPEG image by combining the knowledge extracted from the image domain and the transformed domain. It is based on probabilistic self-organizing maps and functio...
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ژورنال
عنوان ژورنال: Computer Science Research Notes
سال: 2021
ISSN: ['2464-4625', '2464-4617']
DOI: https://doi.org/10.24132/csrn.2021.3101.1