decodemat.asv

来自「EZW的matlab程序 基于小波变换对图像进行压缩编码的研究」· ASV 代码 · 共 33 行

function [DeMat,recvalue]=decodemat(Deflag,quantifier,rIlist,recvalue,qrNum)
global row col

for r=1:row
    for c=1:col
        switch Deflag(r,c)
            case 'P'
                if quantiflag(qrNum)==1
                    qValue=quantifier(rIlist(qrNum),5);
                    recvalue=[recvalue;qValue,r,c];
                    DeMat(r,c)=qValue;
                    qrNum=qrNum+1;
                else
                    qValue=quantifier(rIlist(qrNum),4);
                    recvalue=[recvalue;qValue,r,c];
                    DeMat(r,c)=qValue;
                    qrNum=qrNum+1;
                end
            case 'N'
                if quantiflag(qrNum)==1
                    qValue=quantifier(rIlist(qrNum),5);
                    recvalue=[recvalue;qValue,r,c];
                    DeMat(r,c)=qValue;
                    qrNum=qrNum+1;
                else
                    qValue=quantifier(rIlist(qrNum),4);
                recvalue=[recvalue;qValue,r,c];
                    DeMat(r,c)=qValue;
                    qrNum=qrNum+1;
                    end
            case {'Z','T'}
                DeMat(r,c)=0;
        end