Read several images to work with
1 次查看(过去 30 天)
显示 更早的评论
I am trying to read several images (tomographic - grayscale) of an entire volume so I can make some quantifications.
The name of the data changes according to the number of files, e.g.,
image0001 - image0009
image0010 - image0099
image0100 - image0999
and so on...
I have written this code until now (my N is not bigger than 10000):
if N<10
for d = 1:N
s = ['al000' int2str(d) '.bmp'];
end
elseif N>10 && N<100
for d = 1:9
s(d) = ['al000' int2str(d) '.bmp'];
end
for d = 10:N
s(d) = ['al00' int2str(d) '.bmp'];
end
elseif N>100 && N<1000
for d = 1:9
s(d) = ['al000' int2str(d) '.bmp'];
end
for d = 10:99
s(d) = ['al00' int2str(d) '.bmp'];
end
for d = 100:N
s(d) = ['al0' int2str(d) '.bmp'];
end
elseif N>1000 && N<10000
for d = 1:9
s(d) = ['al000' int2str(d) '.bmp'];
end
for d = 10:99
s(d) = ['al00' int2str(d) '.bmp'];
end
for d = 100:999
s(d) = ['al0' int2str(d) '.bmp'];
end
for d = 1000:N
s(d) = ['al' int2str(d) '.bmp'];
end
end
I need to use those names, but there is an error message when I try to use s(d) instead of only s - so I could save all the names I need:
Subscripted assignment dimension mismatch.
Error in teste (line 7) s(d) = ['al000' int2str(d) '.bmp'];
My questions:
1 - How can I save all those names of the images into another variable, which I will need to access all images later?
2 - Is there a easier, faster or, maybe, smarter way to do this if, elseif and for lines? If I had a N even bigger, would I have to write it down for each interval? Or is there a code which would do the same thing I am doing just knowing my N?
0 个评论
采纳的回答
更多回答(1 个)
David Sanchez
2013-8-14
base_name = 'a0000.bmp';
s = cell(999,1); % initialize cell to hold names
for k=1:999
tmp_str = num2str(k);
L = length(tmp_str);
base_name(6-L:5) = tmp_str;
s{k} = base_name;
end
4 个评论
Walter Roberson
2013-8-15
The form I used would not have those problems. Just substitute "al" for "image"
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!