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local differences for the index matrix

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Anusha
Anusha 2013-10-19
关闭： MATLAB Answer Bot 2021-8-20
The information needed to reconstruct the original image is:
i) the color of pixel p1 ;
ii) a table providing the correspondence between (S1, S2, . . . , SM) with index (i1, i2, . . . , iM);
iii) the set of differences: D(I') = {dx,y|x = 1, 2, . . . ,m; y = 1, 2, . . . , n} where each dx,y is a local difference obtained by considering some specific patterns as better specified after.
D(I')={I'x,y - I'x,y-1}
what are the input's are needed for this equation to be solved?
I have index matrix and colormap(RGB) value of an image

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Walter Roberson
Walter Roberson 2013-10-19
That is a definition rather than an equation. The definition as given cannot be correct. Consider I'x,1 : the difference would require knowing I'x,(1-1) = I'x,0 but index 0 is not defined for I'

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