Concept

ImageMagick

Publications associées (15)

Transmission of Images over Noisy Channels Using Error-resilient Wavelet Coding and Forward Error Correction

A novel embedded wavelet coding scheme is proposed for the transmission of images over unreliable channels. The proposed scheme is based on the partitioning of information into a number of layers which can be decoded independently provided that some import ...

Institute of Electrical and Electronics Engineers2003

Multiwavelet-Like Bases for High Quality Image Interpolation

Michaël Unser, Thierry Blu

We present a simple but generalized interpolation method for digital images that uses multiwavelet-like basis functions. Most of interpolation methods uses only one symmetric basis function; for example, standard and shifted piecewise-linear interpolations ...

SPIE2003

Method and Apparatus for Generating Digital Half-tone Images Using a Rotated Dispersed Dither Matrix.

Method and apparatus enabling color or black/white bi-level or multi-level halftone images to be displayed or printed on various raster output devices, in particular on display devices (cathode ray tubes, plasma displays, liquid crystal displays) or on pri ...

1995

Method and Apparatus for Generating Halftone Images by Discrete One-to-one Dither Tile Rotation

Roger Hersch

The invention relates to a method and apparatus for automatic high-speed generation of digital angled halftone screens, specially suited for obtaining screens approximating the irrational angles which are generally required by high-quality colour reproduct ...

1995

RASTER ROTATION OF BILEVEL BITMAP IMAGES

Roger Hersch

A fast raster rotation algorithm based on nearest-neighbour interpolation is described. Essentially, the computation consists of two additions/subtractions and two rounding operations per rotated image pixel. The rotation time is about equal to the time ne ...

North-Holland, Amsterdam, Neth1985

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