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Two low cost algorithms for improved diagonal edge detection in JPEG-LS

open access: yes, 2001
JPEG-LS is the latest lossless and near lossless image compression standard introduced by the Joint Photographic Experts Group (JPEG) in 1999. In this standard simple localized edge detection techniques are used in order to determine the predictive value
Grecos, Christos   +2 more
core   +1 more source

File forensics for RAW camera image formats [PDF]

open access: yes, 2012
Recent research in multimedia forensics has developed a variety of methods to detect image tampering and to identify the origin of image files. Many of these techniques are based on characteristics in the JPEG format, as it is the most used file format ...
Gloe, Thomas   +2 more
core  

A Parallel Pipelined Implementation for JPEG-LS Encoders

open access: yes, 2010
隨著醫學電子的蓬勃發展,在醫學影像的處理上勢必越來越受重視,而且畫素也會隨著科技的進步來不斷的提升,造成圖片尺寸越來越大,適當運用無失真壓縮技術不但能方便儲存管理圖片,也可以使用在可攜式的電子醫學儀器上,讓使用者方便儲存以及讀取圖片。PEG-LS是國際標準的壓縮技術之一,在本論文中我們使用Verilog HDL來實作JPEG-LS編碼器,最後在FPGA (Field Programmable Gate Array )上面做驗證,在此我們提出在不需要增加額外的硬體電路時,利用平行化、管線化、模組化的特點 ...
Lin, Chia-Hsiang, 林家興
core  

Lossless Medical Image Compression by Using Difference Transform. [PDF]

open access: yesEntropy (Basel), 2022
Rojas-Hernández R   +5 more
europepmc   +1 more source

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