IMAGE PROCESSING APPARATUS AND METHOD

PROBLEM TO BE SOLVED: To encode or decode an image more easily.SOLUTION: The image processing apparatus includes an effective digit encoding section for encoding the information about the maximum effective digit, i.e., the effective digit of coefficient data having a largest absolute value, for each...

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Bibliographic Details
Main Author HOSAKA KAZUHISA
Format Patent
LanguageEnglish
Published 04.07.2013
Subjects
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:PROBLEM TO BE SOLVED: To encode or decode an image more easily.SOLUTION: The image processing apparatus includes an effective digit encoding section for encoding the information about the maximum effective digit, i.e., the effective digit of coefficient data having a largest absolute value, for each set of predetermined multiple number of coefficient data generated from image data, a zero-run encoding unit for encoding zero-run consisting of a set composed only of the coefficient data having a value of 0, an absolute value encoding unit for encoding the absolute value of each coefficient data, for each set, for the coefficient data other than the zero-run, and a sign encoding unit for encoding the positive and negative signs of each coefficient data, for each set, for the coefficient data other than the zero-run. The invention is applicable to an image processing apparatus.
Bibliography:Application Number: JP20110280577