18.11.2015 admin





: ,
Maria35.png, Maria63.png, Maria64.png, Maria65.png, Maria255.png, Maria256.png, Lena256








MW3.xml, MW7.xml, MW15.xml, MW31.xml

F5.xml, M7.xml, F17.xml, M22.xml

: | (JPEG) | 44
- | JPG | | INKSCAPE


1. , http://www.compression.ru
2. http://imaging.cs.msu.ru
3. - , , http://cgm.computergraphics.ru
4. , (Video Group CS MSU Graphics & Media Lab) htt://grphics.s.msu.su

I. XML-


, XML- ( ) . - .

1. 22x22, 0 255

2. 110x110, 0 255 ( )

. plots( ,"C"), plots( ,"XP"). putm(), .

II. PNG


a belka.jpg 110x110, 0 255, B.xml. plots( ,"C"), plots( ,"XP"). mesh( ) 100x100.

PNG , , , . ! . , .

. plot('R.xml','PNG'); ( XML PNG), , . .

III.



. , , F[i][j] 1 -, , , , w=[1,7,4,5,6,3,2], "" .

" " , , , . "", .

M7: , . " ", .

IV.


, 22x22, M22, 22x22, . , , 128 ( 256). M22=norms(M22). : S=M22'*R*M22.

, 110x110, 110 , 22. P=diag(M22,...,M22) 5

S M, D=diag(M22,5).

V. :


- . (-, 2^k). M7.

21x21. 22x22, 21x21: R=rowcol(R,0,20,0,20) .

M7, . . .

. , , . .




. PNG ( ), , .

. {{'RSF.xml'=SF}} plot('RSF.xml','PNG'); plot('R.xml','PNG'); ( ).

, "" . , . . . , .

: 35x35


, 35x35, . PNG 3.69 , ( , ).

PNG 3.37 ( , ).



: 63x63


, 63x63, . M7 : 63=7x9. PNG 7.38 , ( , ).

PNG 5.42 ( , ).




. -:


.

( ),

110,


24.04.2015 alex


, , . , factor().

, . , factor2(), 0... 255 127...128. , , , PNG. , " ".


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