string,matlab,filenames , Giving a string variable as a filename in matlab


Giving a string variable as a filename in matlab

Question:

Tag: string,matlab,filenames

I am using the below mentioned code to get the file names of images according to their id's from images_1 text file as strings and use them to read the images from their directory

image_count=1;
for image_count=1:6
    file=fopen('D:\Academics\New folder\CUB_200_2011\images_1.txt','r');
    C = textscan(file, '%s');
    original_image=imread('D:\Academics\New folder\CUB_200_2011\images\%s','C{1}{2*(image_count)}');
    imshow(original_image)
end

I am able to get the file name but not able to use it. This code shows the following error-

'File "D:\Academics\New folder\CUB_200_2011\images\%s" does not exist.

I am a bit new to matlab, can anyone please help me.


Answer:

You would need to change your back slashes \ to forward slashes /, otherwise some \ followed by a letter may be commands in the sprintffunction, like for example \N or \a. See sprintf documentation in the formatSpecarea for more information.

original_image=imread(sprintf('D:/Academics/New folder/CUB_200_2011/images/%s', C{1}{2*(image_count)}));

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