Could anyone explain the code for me ?
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file_path = dir(''); fid = fopen(''); pattern_col = 0;
while ~feof(fid)
pattern_col = pattern_col + 1; %coloum increment is 1
exp = []; %initialize the sample data
area_sample = [];
angle_sample = [];
fcontent = fgetl(fid); %get pattern size
pattern_size = fcontent;
fcontent = fgetl(fid); %get time interval
pattern_hour = fcontent;
fcontent = fgetl(fid); %get file path
file_path_disp = fcontent;
file_path = dir(fcontent); %should be specific
file_num = size(file_path, 1);
Could anyone explain the code for me ? It can read a image file ? especially the beginning. file_path = dir(''); fid = fopen('');
Can you make up some example for me ? thanks
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More Answers (2)
Image Analyst
on 6 Aug 2014
And fclose() is also missing. This will only read an image file if the image file was written out as ASCII text. Otherwise you should use fread() rather than fgetl() to get the pixels out. And that's only if it's some custom format that imread() doesn't know about.
3 Comments
dpb
on 7 Aug 2014
Please don't make same comments more than once't--_*most*_ confusing about what is/isn't answered...
Image Analyst
on 7 Aug 2014
Don't use dir() in that case. Just say
folder = pwd; %'C:\Users\user\Desktop'
filePattern = sprintf('%s/*.PNG', folder) % Find PNG image files.
fileNames = dir(filePattern)
for k = 1 : length(fileNames)
thisBaseFileName = fileNames(k).name;
thisFullFileName = fullfile(folder, thisBaseFileName);
fprintf('Now processing %s...\n', thisFullFileName);
end
dpb
on 7 Aug 2014
Edited: dpb
on 7 Aug 2014
...IF the file is not in current directory...
Then include it in the argument to dir, of course...
file_path = 'C:\Users\user\Desktop';
d=dir(fullfile(file_path,'text*.txt'));
for i=1:length(d)
fid=fopen(fullfile(file_path,d(i).name));
...
2 Comments
dpb
on 7 Aug 2014
My bad...the dir somehow got duplicated in the line defining the directory path...
file_path = dir('C:\Users\user\Desktop');
should, of course, simply be
file_path = 'C:\Users\user\Desktop';
Fixed above, just pointing out the problem.
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