Wrong in imwrite>parse_inputs (line 510),The file name must be provided.
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I want to do color enhancement on the images by changing the line 31 from 'disp(url)' to ' url=immultiply(file,2);'in line 31,but there is an error shows
%
wrong in imwrite>parse_inputs (line 510)
The file name must be provided.
wrong in imwrite (line 418)
[data, map, filename, format, paramPairs] = parse_inputs(varargin{:});
wrong in prepare_imdb (line 34)
imwrite(imresize(file,[256,256]), url );
The complete source code is
% clear;
%you can download this file. It contains data.
load('F:\2016_person_re-ID-master\2016_person_re-ID-master/cuhk-03.mat');
imdb.meta.sets = ['train','test'];
count = 0;
label = 0;
%choose a split
testsets_num = 6; %cuhk03 has 20 different splits, and this value can be 1 ~ 20.
p = sprintf('./split%d_256_1/',testsets_num);
if(~exist(p,'dir'))
mkdir(p);
end
test = testsets{testsets_num,1};
cc = [];
for k=1:numel(detected) %camera
im = detected{k,1};
for i = 1:size(im,1) %identity
A = find(test(:,1) == k);
B = find(test(:,2) == i);
C = intersect(A,B);
if(~isempty(C))
continue;
end
label = label+1;
temp = 0;
for j=1:10 %image
file = im{i,j};
url = sprintf('F:/2016_person_re-ID-master/2016_person_re-ID-master/cuhk03-prepare-eval/split%d_256_1/%d_%d_%d.jpg',testsets_num,k,i,j);
if(~isempty(file))
disp(url);
imwrite(imresize(file,[256,256]), url );
temp = temp + 1;
count = count + 1;
%disp(count);
imdb.images.data(count) = cellstr( url );
imdb.images.label(count) = label;
end
end
cc = [cc;temp];
end
end
imdb.images.set = ones(1,count);
imdb.images.set(:,randi(count,[round(0.1*count),1])) = 2;
list = find(imdb.images.set==2);
for i=1:numel(list)
if cc(imdb.images.label(list(i)))<9
imdb.images.set(list(i))=1;
end
end
save(sprintf('cuhk_data_256_split%d_3.mat',testsets_num),'imdb','-v7.3');
I just change the line 31 ,no changes have been made elsewhere。My goal is save the images which have enhanced color in the file 'F:/2016_person_re-ID-master/2016_person_re-ID-master/cuhk03-prepare-eval/split%d_256_1'.Can you tell me what should i do?
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