Cinema industry has chosen Digital Cinema Package (DCP) as encoding format for the distribution of digital films. DCP uses JPEG2000 for video compression. An efficient implementation of coding and decoding for this format is complex, however. Currently deployed equipment is expensive and has high maintenance costs, preventing art-house cinema theaters from acquiring it. Therefore, we conduct th...

The JPEG2000 standard defines two methods for region of interest (ROI) coding, the maximum shift and the general scaling. In the maximum shift method, an ROI can have any shape that does not need to be transmitted to the decoder, but does not have the flexibility to select an arbitrary scaling value to compromise the ROI quality compared with the background. The general scaling based method sup...

We work on multiresolution transforms, used in compression systems of image and video in which JPEG2000 is an update to JPEG. We process the basis constructions for the wavelet transforms, and estimate some of their characteristics with those of hierarchical transforms. In the compression performance as measured by PSNR(peak signal to noise ratio), the best performance is provided by H.264, but...

In this paper we analyse the effects that JPEG and JPEG2000 compression have on subspace appearance-based face recognition algorithms. This is the first comprehensive study of standard JPEG2000 compression effects on face recognition, as well as an extension of existing experiments for JPEG compression. A wide range of bitrates (compression ratios) was used on probe images and results are repor...

This paper presents a binary matrix code based on QR Code (Quick Response Code), denoted as CQR Code (Colored Quick Response Code), and evaluates the effect of JPEG, JPEG2000 and H.264/AVC compression on the decoding process. The proposed CQR Code has three additional colors (red, green and blue), what enables twice as much storage capacity when compared to the traditional black and white QR Co...

With the tremendous growth and usage of digital images nowadays, the integrity and authenticity of digital content is becoming increasingly important, and a growing concern to many government and commercial sectors. Image Forensics, based on a passive statistical analysis of the image data only, is an alternative approach to the active embedding of data associated with Digital Watermarking. Ben...

With the increasing use of multimedia technologies, image compression requires higher performance as well as new functionality. To address this need in the specific area of still image encoding, a new standard is currently being designed: JPEG2000. We will see in this paper what the exact goals are of this future standard, which applications it addresses and the current standardisation process....

JPEG2000 encryption has become a widely discussed topic and quite a number of contributions have been made. However, little is known about JPEG2000 compression parameters and their influence on the security and performance of format, compliant encryption schemes. In this work, a thorough analysis of this topic is presented with a focus on format-compliant packet body encryption as sketched in t...