information of a folder of images

How we can get information of a folder of images using imfinfo() and I also want to get bit depth of all images. And this bit depth values want to store in a xlsheet. Please someone help me. Its very urgent.

[KALYAN ACHARJYA]

"get information of a folder"....????

The answer seems simple, but what have you tried?

[Sajitha K.N.]

When I tried with one image of the same folder it gave result. But when I using this for a folder of images it shows this error msg:

char, string

Instead its type was uint8.

Error in bitdepth2 (line 9)

imfinfo(img)

[Sajitha K.N.]

My code is

location = 'C:\Users\win7\Documents\MATLAB\dataset\Average_filter\uav2'; % folder in which your images exists

ds = imageDatastore(location);% Creates a datastore for all images in your folder

k=1;

while hasdata(ds)

img= read(ds) ;

imshow(img)

imfinfo(img)

info=imfinfo(img);

info.BitDepth

k=k+1;

end

[KALYAN ACHARJYA]

Then call the images one by one (for loop) from the folder and do operation as per requirement.

[Sajitha K.N.]

When I'm doing like imfinfo() shows error msg :

char, string

Instead its type was uint8.

Error in bitdepth2 (line 9)

imfinfo(img)

Answer 1

[Sid Singh]

Hi, from the documentation

https://www.mathworks.com/help/matlab/ref/imfinfo.html

this function takes in a filename and gives you the information about that image. If you pass a folder name, it would give an error which is the standard behavior.

You can use the following command to list directory contents and extract individual file information in a for loop.

https://www.mathworks.com/help/matlab/ref/dir.htm

Regarding writing the data to excel, you can refer this documentation

https://www.mathworks.com/help/matlab/import_export/exporting-to-excel-spreadsheets.html#responsive_offcanvas