storing data into a vector within nested for loop
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im = imread(im);
im = im2bw(im);
s = size(im);
xtot = s(2);
ytot = s(1);
for xcount = 1:xtot,
for ycount = 1:ytot,
if im(ycount,xcount) == 1
sqrt((xcount-coord(2)).^2+(ycount-coord(1)).^2)
end
end
end
end
bear with me, since i'm new to matlab.
i'm making this function to quickly calculate distances from a particular object to a known coordinate. i turned the object image into black and white, read the dimensions, then iterated along the image matrix searching for 1s (which are a part of the object). then i use the coordinates that come up as 1s and measure distance to the known coordinate. i need to store all the distances in one vector so i can take the minimum. input arguments were the image and the 2d coordinate. thanks for your help.
采纳的回答
Titus Edelhofer
2012-3-19
Hi,
usually I would not use a loop for this kind of operations: do the following instead:
[Xcount, Ycount] = meshgrid(1:xtot, 1:ytot);
distance = sqrt((Xcount-coord(2)).^2 + (Ycount-coord(1)).^2);
Now the matrix "distance" contains all distances...
Titus
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