Ahmed N, Natarajan T and Rao K R have explained basics of Discrete Cosine Transforms, and its use in image compression [4]. The JPEG2000 Standard basics and algorithms are explained by Karen L. Gray [5]. The ba
Optimizing JPEG on the TMS320C6211 2-Level Cache DSP Jungki Min, Vishal Markandey Digital Signal Processing Solutions ABSTRACT This application report describes the implementation and optimization techniques of the Joint Photographic Experts Group (JPEG), the still image compression standard on the ...
16x16 pixel synthetic example of a phone line hanging against a blue sky — traditionally a case where JPEG compression algorithms suffer from artifacts. Uncompressed original is on the left. Guetzli (on the right) shows less ringing artefacts than libjpeg (middle) and has a smaller file size....
- 2004 () Citation Context ...e itsproved itself to be one of the best image compression algorithmssavailable for the moment. It outperforms the previous DCT-basedsJPEG compression in terms of image quality and compressionsratios =-=[23]-=-, besides it does not suffer from blocking ...
Currently, most robust steg- anography algorithms rely on the resistance of embedding to the general JPEG recompression process. The opera- tions in a specific compression channel are usually ignored, which reduces the robustness performance. Besides, to acquire the robust ...
The images returned as being similar to the query image could then be processed by a more sophisticated and restrictive set of algorithms with the expectation that most of the images to which the algorithms are applied will have similar characteristics. ...
What It Is Available as a free trial, the regularly priced $99 JPEGmini Pro is a simpleLightroom pluginor Photoshop CC extension that applies its algorithms on photo export to remove redundant binary data from your images. Explained simply: think of how the MP3 file type compresses file size...
Karl M. Marks, (“A JBIG-ABIC compression engine for digital document processing,” IBM Journal of Research and Development, Vol42, No. 6 pp.753-758 (November 1998)) describes a chip that can encode or decode the bi-level image compression algorithms JBIG and ABIC. Thus conversion ...
However, the technique of the present invention is not limited to JPEG, but may be extended to compression algorithms that use other linear-transform-based basis functions including the discrete sine transform, the discrete hadamard transform and wavelet transforms. We begin by providing a brief ...
entropy Article Image Statistics Preserving Encrypt-then-Compress Scheme Dedicated for JPEG Compression Standard Dariusz Puchala * , Kamil Stokfiszewski and Mykhaylo Yatsymirskyy Institute of Information Technology, Lodz University of Technology, 90-924 Lodz, Poland; kamil.stokfiszewski@p.lodz.pl (K...