REGARDING THRESHOLDING

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vishnu
vishnu 2012-2-28
c=imread('caribou.tif')
imshow(c);
CW=wt2d(double(c),h,g,8);
length(find(abs(CW)<=10));
ans=
47424
CW(find(abs(CW)<=10))=0;
CW=round(CW);
ci=iwt2d(CW,rh,rg,8)
imshow(mat2gray(ci));
i am working on the image compression.. this code i found in the book named "INTRODUCTION TO DIGITAL IMAGE PROCESSING WITH MATLAB BY ALASDAIR Mc ANDREW" .. WHEN I RUN THIS CODE I GET THE ERROR UNDEFINED FUNCTION OR VARIABLE h ... any one help this to debug ... thanks

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回答（1 个）

Walter Roberson
Walter Roberson 2012-2-28
Sure enough, that code uses "h" and "g" and "rhs" and "rg" without defining them.
There must have been additional code in the book, or an indication of what those variables are intended to mean.

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