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how can i store the location (x,y) in a variable in a loop?

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angel
angel 2013-5-5
the code i tried is:
index=1;
B=zeros(BmatRows,BmatCols);
for row=1:incrR:rows-(blockSizeR-1)
rowStart=row;
rowEnd=row+(blockSizeR-1);
for col=1:incrC:columns-(blockSizeC-1)
colStart=col;
colEnd=col+(blockSizeC-1);
oneBlock=grayImage(rowStart:rowEnd,colStart:colEnd);
vecOneBlock= reshape(oneBlock,1,numel(oneBlock));
B(index,:)=vecOneBlock;
index=index+1;
end
end
[B,index]=sortrows(B);
here i want to track the rowstart and colstart as a point location like (rowstart,colstart) stores in a variable and changed according to the loop after that.
the matrix B is now according to the "sortrows" function and the index is also according to the matrix B. i.e the "index" values also shuffles.
i want that the after storing point values in a variable it also shuffles according to the matrix B.
i dont know how to do this plz help me to do so...

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采纳的回答

Youssef Khmou
Youssef Khmou 2013-5-5
编辑：Youssef Khmou 2013-5-5
hi,
According to your program try this :
%BmatRows=140;
%BmatCols=150;
%blockSizeR=4;
%blockSizeC=5;
%incrR=1;
%incrC=1;
%rows=40;
%columns=40;
% THE VALUES ABOV ARE CREATED FOR TESTING PURPOSE
index=1;
B=zeros(BmatRows,BmatCols);
for row=1:incrR:rows-(blockSizeR-1)
rowStart=row;
rowEnd=row+(blockSizeR-1);
for col=1:incrC:columns-(blockSizeC-1)
colStart=col;
TRACKING(index,:)=[rowStart colStart];
colEnd=col+(blockSizeC-1);
oneBlock=grayImage(rowStart:rowEnd,colStart:colEnd);
vecOneBlock= reshape(oneBlock,1,numel(oneBlock));
B(index,:)=vecOneBlock;
index=index+1;
end
end

更多回答（1 个）

Image Analyst
Image Analyst 2013-5-5
Inside the innermost loop, add these lines:
starts(index, 1) = rowStart;
starts(index, 2) = colStart;
Or as a single line like
starts(index, 1:2) = [rowStart, colStart];
  6 个评论
显示 4更早的评论
Image Analyst
Image Analyst 2013-5-5
Sorry - forgot that starts was a 2D array and needs 2 indexes. Try it this way:
starts=starts(sortingIndex, :);

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