Read thumbnail/embedded JPEG in DNG file
8 views (last 30 days)
Show older comments
I have a compressed DNG file which I can preview in the Photos app on Windows 11, possibly because there is an embedded JPEG aka thumbnail in the DNG file. Is there a way to read this thumbnail into Matlab? I figure if Windows Photos can do it, Matlab should be able to also. I can't seem to use imread as suggeted here to get the preview, however:
imread('SomeCompressedDngFile.DNG') % Error: Unable to read TIFF file "SomeCompressedDngFile.DNG". File is corrupt or image does not
contain any readable tiles.
imread('SomeCompressedDngFile.DNG', 'jpeg') % Error: 'SomeCompressedDngFile.DNG is not a jpeg file
2 Comments
Walter Roberson
on 28 Feb 2023
Note that the TIFF content itself is probably not going to make sense as DNG images are typically compressed in a way that the Tiff class does not know how to handle.
Accepted Answer
KAE
on 3 Mar 2023
Edited: KAE
on 6 Mar 2023
5 Comments
Walter Roberson
on 6 Mar 2023
It looks like the answer might be to use .NET
System.IO.File.GetCreationTime(PATH)
More Answers (0)
See Also
Categories
Find more on Data Import and Analysis in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!