related to image processing

Question

aman 2014-3-13

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/121310-related-to-image-processing

评论： Image Analyst 2014-3-13

hi, I have made the following program which is used for refinement in image coding. mark=zeros(1,4); out1=zeros(1,4); out=zeros(1,4); x=[1 3 7 8]; for n=3:-1:1; t=2^n; for i=1:4; if (x(i)>=t);

        switch mark(i)
            case 0
                out1(i)=sign(x(i));
                mark(i)=1;
            case 1
                z=dec2bin(x(i),4);
                out1(i)=z(1);
                mark(i)=2;
            case 2
                z1=dec2bin(x(i),4);
                out1(i)=z1(2);
                mark(i)=3;
            otherwise
        end
    else
        out1(i)=0;
    end
    end
end

when I run this program I get finally out1 as 0 1 48 48 . Instead I should get 0 1 0 0. Can any body tell me what is the problem with my program.

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John D'Errico 2014-3-13

编辑：John D'Errico 2014-3-13

Please don't title every post of yours exactly the same "related to image processing". This is confusing and it does not help anyone else who may be able to learn from your post.

As well, please don't ask the same question twice!