How to read image matrix stored in a structure
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I have a letters.mat file which has one variable dataset which is a struct and dataset has 2 more fields as train , test which both are also structures, In train structures 2 fields are images and labels ...images is of 124800*784 unit8 type... I want to read those images and store them in a folder. How can I do that? I used the code load('dataset.mat') train = dataset.train images = train.images; Now when I show the image using imshow() it displays error that Error using imread>parse_inputs (line 450) The file name or URL argument must be a character vector.
Error in imread (line 322) [filename, fmt_s, extraArgs, was_cached_fmt_used] = parse_inputs(cached_fmt, varargin{:});
Error in ex (line 46) imgArray = imread(images)
Can anyone help me with the code? Thanks in advance
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Guillaume
il 12 Lug 2018
Modificato: Guillaume
il 12 Lug 2018
If you want to see the image, it's simply:
imshow(dataset.train.images);
The image is a grayscale image. However, it is puzzling why the field is called images since it contains just one (very big image).
If you want to save the image to disk in its own file:
imwrite(dataset.train.images, 'C:\somewhere\somename.png');
edit: Again, your training dataset contains just one image. However, since it's so big, it's possible that that single image is the result of stitching together several images.
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