Journal ArticleDOI
Design of optimal filters for error-feedback quantization of monochrome pictures
Jung Guk Kim,Gil Chang Kim +1 more
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TLDR
The minimized-average-error bilevel display algorithm is extended to a general n -level error-feedback filter for picture display and a low-pass filter impulse response is used in the spatial domain to define a more reasonable distortion measure based on the concept of error diffusion.About:
This article is published in Information Sciences.The article was published on 1986-10-01. It has received 14 citations till now. The article focuses on the topics: Filter design & Recursive filter.read more
Citations
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Journal ArticleDOI
Error diffusion procedure: theory and applications in optical signal processing.
Severin Weissbach,Frank Wyrowski +1 more
TL;DR: It is demonstrated that the error diffusion procedure is a powerful means to avoid signal error caused by a nonlinear system and an appropriate filter design method is described.
Journal ArticleDOI
Optimal error diffusion for computer-generated holograms
TL;DR: A probabilistic model is introduced to describe error diffusion (a method of binarization) and this model is solved for general error-diffusion coefficients and leads to an analytic error expression that is minimized to optimize the quality of Binarization.
Patent
Method for quantization of gray level pixel data with extended distribution set
Jeng-Nan Shiau,Shigang Fan +1 more
TL;DR: In this article, a method and arrangement for quantization of the nth pixel in scan line l (i.e., pixel n,l), with error diffusion to a matrix including pixels at pixel locations corresponding to pixels, is presented.
Journal ArticleDOI
Threshold modulation and stability in error diffusion
TL;DR: The lessons that have been learned in two areas of error-diffusion research: threshold modulation and error stability are described, important in understanding how to improve and extend the algorithm.
Patent
Method for quantization gray level pixel data with application of under compensated error diffusion
TL;DR: In this article, a method and arrangement for the application of under compensated error diffusion to a pixel quantizing method in the conversion of image data from a number of input levels that is relatively large with respect to the desired output levels is presented.
References
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Journal ArticleDOI
A survey of techniques for the display of continuous tone pictures on bilevel displays
TL;DR: This work presents a survey of processing techniques for presenting continuous tone still images on such displays by dividing an image into picture elements and comparing the intensity of each element with a threshold value.
Journal ArticleDOI
Two-dimensional spectral factorization with applications in recursive digital filtering
M. Ekstrom,John W. Woods +1 more
TL;DR: In this article, the concept of spectral factorization is extended to two dimensions in such a way as to preserve the analytic characteristics of the factors, and the resulting factors are shown to be recursively computable and stable in agreement with one-dimensional (1-D) spectral factorisation.
Journal ArticleDOI
Reduction of Quantizing Noise by Use of Feedback
H. Spang,P. Schultheiss +1 more
TL;DR: It is shown that considerable reduction in noise power can be obtained by a slight increase in sampling rate, and an increase of 25 per cent in the sampling rate provides a 95 per cent decrease in error-noise power.
Journal ArticleDOI
Stochastic stability for feedback quantization schemes
TL;DR: The type of stochastic stability obtained gives almost-sure convergence of time averages of functions of the joint input-state-output process.
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