APPARATUS AND METHOD FOR COMPRESSING IMAGE USING VECTOR QUANTIZATION AND METHOD FOR GENERATING VECTOR QUANTIZATION CODE BOOK

摘要

PURPOSE: An apparatus and a method for compressing an image using a vector quantization and a method for generating vector quantization code book are provided to maintain a high compressibility and, simultaneously, restore an image quality excellently, and compress an image in real time. CONSTITUTION: An apparatus for compressing an image using a vector quantization includes apparatuses(12) to divide a pixel block and make into a vector dividing an inputted image into a unit pixel block to make into a vector, input vector size and element variance calculators(13) to calculate a size of an input vector which is made into a vector and inputted and the variance of a vector element, fragment selector(14) for code book inspection establishing a range of a reference vector, which is the subject of inspection, from the inner color based on the calculated vector size and the element variance, a code book(15) consisted of aligned reference vectors according to a size of a vector and a size of an element variance, and an apparatus(16) for searching the closest reference vector to search the closest reference vector to an inputted vector in the searching fragment of the code book and output a compressed image data consisted of address rows of the reference vector.