how to construct this equation in matlab?..for loop is best r something else..?

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Dhines 2013-1-21

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/59378-how-to-construct-this-equation-in-matlab-for-loop-is-best-r-something-else

http://latex.codecogs.com/gif.latex?H'_{i+1}(x,y)=round(\frac{H_{i}(2x-1,2y-1)+H_{i}(2x,2y-1)+H_{i}(2x,2y)}{4})-H_{i+1}(x,y)...

where i values varies 1 and 2.

x and y vale is 51 and 56 if i=1 ,i=2 mean x and y value is 76 and 78

[Merged from duplicate question]

http://latex.codecogs.com/gif.latex?H'_{i+1}(x,y)=round(\frac{H_{i}(2x-1,2y-1)+H_{i}(2x,2y-1)+H_{i}(2x,2y)}{4})-H_{i+1}(x,y)

for this equation i wrote this code.

x=51;
y=52;
H2'(x,y)=((H1(2x-1,2y-1)+H1(2x-1,2y)+H1(2x,2y)))/4
P=H2(x,y);
Q=H2'(x,y-H2(x,y);

here first of all H represents a horizontal subband of image 128 x 128. from this i'am derive detailed subbands H1,H2,H3. values 51 52,76 76,88 88. "i" values varies from 1 and 2.

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Dhines 2013-1-22

see my updated question..there i said and constructed all

Walter Roberson 2013-1-22

[New question has been merged into the original.]

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MATLAB Language Fundamentals Matrices and Arrays Creating and Concatenating Matrices

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