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Lossless JPEG

About: Lossless JPEG is a research topic. Over the lifetime, 2415 publications have been published within this topic receiving 51110 citations. The topic is also known as: Lossless JPEG & .jls.


Papers
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Book ChapterDOI
09 Jan 2013
TL;DR: There is a need to develop techniques that reduces the size of image without significantly compromising the quality of digital image so that it can be stored and transmitted efficiently.
Abstract: Advancements in digital image devices have culminated in increase in image size and quali‐ ty. High quality digital images are required in different fields of life for example in medical, surveillance, commercials, space imaging, mobile phones, play stations and digital cameras. As a result, memory requirement for storing these high quality images has been increased enormously. Moreover, if we want to transmit these images over communication channel, it will require high bandwidth. Thus there is a need to develop techniques that reduces the size of image without significantly compromising the quality of digital image so that it can be stored and transmitted efficiently.

1 citations

01 Jan 2014
TL;DR: This paper studies the possibilities of extending the pixel-based compression algorithm LOCO-I, used by the lossless and near lossless image compression standard JPEG-LS, introduced by the Joint Ph ...
Abstract: This paper studies the possibilities of extending the pixel-based compression algorithm LOCO-I, used by the lossless and near lossless image compression standard JPEG-LS, introduced by the Joint Ph ...

1 citations

Proceedings ArticleDOI
26 May 1999
TL;DR: It was shown that images had to be compressed to below 2.5 percent for JPEG and 1.7 percent for Wavelet compression before fine detail was lost, or when image quality was too poor to make a reliable diagnosis.
Abstract: This study was designed to determine the degree and methods of digital image compression to produce ophthalmic images of sufficient quality for transmission and diagnosis The photographs of 15 subjects, which included eyes with normal, subtle and distinct pathologies, were digitised to produce 154MB images and compressed to five different levels using JPEG and wavelet image compression The images were analysed by three different methods: (i) objectively by calculating the RMS error between the uncompressed and compressed image, (ii) semi-subjectively by assessing the visibility of blood vessels, and (iii) subjectively by asking a number of experienced observers to assess the images for quality and clinical interpretation Results showed that as a function of compressed image size, wavelet compressed images produced less RMS error than JPEG compressed images Blood vessel branching could be observed to a greater extent after Wavelet compression compared to JPEG compression to the same image size Assessment of the compressed images by experienced observers showed that Wavelet compression produced better images than JPEG compression for a given image size Overall, it was shown that images had to be compressed to below 25% for JPEG and 17% for Wavelet compression (image size about 37 kbytes and 25kbytes respectively) before fine detail was lost, or when image quality was too poor to make a reliable diagnosis

1 citations

Journal Article
TL;DR: Experimental results showed the proposed image watermarking technique was robust against JPEG lossy compression, but sensitive to the malicious attacks on the watermarked image.
Abstract: A semi-fragile image watermarking technique that accepts JPEG lossy compression was developedWith the high sensitivity on initial value of chaotic mapping and the invariant properties of DCT coefficients before and after JPEG compressions,the pre-quantified low DCT coefficients and a watermarking key are combined as the initial value of logistic maps for generating the watermarkThe watermarked image was obtained by modifying the DCT coefficients according to the watermarkThe number of the image blocks are mapped into the iteration times of chaotic system to resist the counterfeiting attacks on block-wise independent watermarking shemesExperimental results showed the proposed technique was robust against JPEG lossy compression,but sensitive to the malicious attacks on the watermarked imageAt meantime,it can localize the tampers correctly and accurately

1 citations

Journal Article
TL;DR: Based on discussing the standard proce ss of JPEG, an adaptive quantization technique for JPEG is suggested and the validity and feasibility of the method are verified.
Abstract: Based on discussing the standard proce ss of JPEG,an adaptive quantization technique for JPEG is suggested.A serial of experiments is finished,and the validity and feasibility of the method are verif ied.

1 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202321
202240
20215
20202
20198
201815