منابع مشابه
Digital Compression for Television Pictures
The word "compression" has become very fascinating now days and is being linked with digital technology in general. The advent of digital technology and incorporation of its enhanced capabilities into field of TV technology made the "compression" quite mysterious. It is not only digital domain where recently the compression techniques have started being applied. It is applicable to analog domai...
متن کاملDigital Color Restoration of Faded Motion Pictures
The cinematographic documents recorded on chemical support represent a significant cultural heritage. These films, however, are often very damaged. Using powerful multimedia platforms, motion pictures can be digitized at a high resolution, processed and reproduced, thus allowing a digital restoration of old films. We present in this paper a technique to restore faded color films. This method co...
متن کاملA theory of binary digital pictures
We study 2and 3-dimensional digital geometry in the context of almost arbitrary adjacency relations. (Previous authors have based their work on particular adjacency relations.) We define a binary digital picture to be a pair whose components are a set of lattice-points and an adjacency relation on the whole lattice. We show how a wide class of digital pictures have natural "continuous analogs."...
متن کاملA Robust Algorithm for Information Hiding in Digital Pictures
A problem inherent in information hiding techniques for digital images is that of alignment during data extraction. This alignment problem can be solved using a search approach where a combination of coarse orientation detection, random search and gradient descent methods are employed. When used in conjunction with the Patch Track algorithm, it is possible to create an information hiding and re...
متن کاملMembrane protein clusters at nanoscale resolution: more than pretty pictures.
Fluorescence microscopy is powerful for analyzing the composition and dynamics of cellular elements, but studying precise molecule patterns is precluded due to diffraction limited resolution. This barrier has been lifted now through several superresolution microscopy techniques. They revealed that proteins assemble in defined groups (clusters). A new challenge thus appears for the biologist: to...
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ژورنال
عنوان ژورنال: Information and Control
سال: 1978
ISSN: 0019-9958
DOI: 10.1016/s0019-9958(78)91027-6