Unformatted text preview: L is deﬁned as L = DA where D is a diagonal matrix with d ii equal to the sum of the i th row of A . For example, if A = 0 1 1 0 1 0 1 1 1 1 0 0 0 1 0 0 then D = 2 0 0 0 0 3 0 0 0 0 2 0 0 0 0 1 and L = 2111 31111 21 1 . 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 (a) (b) (c) (d) (2) Use the svdcomp2.m MATLAB script posted on the course webpage to display the ‘books.jpg’ image (also online) and its compressed version to at most 10% of original size but still of good enough quality to read the titles. Indicate on the plot title the compression size ( r 2 c /r 2 o where r c , r o are the compressed and original ranks of the images). Gerardo Laﬀerriere, November 25, 2009...
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 Spring '09
 Lafferier
 Linear Algebra, Algebra, Graph Theory, 10%, adjacency matrix, 10pts, Gerardo Laﬀerriere

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