corrupted jpeg help request
Suppose I have a bunch of jpegs on a flash drive that are looking like this. Is it possible to uncorrupt them somehow?
corrupted jpeg help request
@drb Unlikely. The color information per pixel is lost, there is no hidden metadata or hidden copy of the bitmap.
You may have luck with some image correction tools (noise removal etc).
And - educated guess - that's an issue with the camera / camera chip.
corrupted jpeg help request
@antiphasis
Thanks. I know the issue isn't with the camera as these photos looked fine when I first received them.
They are on a flash drive that has been sitting idle for 13 years.
corrupted jpeg help request
That's interesting, I would agree with @antiphasis here. That doesn't look like JPEG data corruption, that looks like incorrect data that was subsequently JPEG compressed. JPEG data corruption _tends_ to create blocky errors and chunks of noise, not stripes.
corrupted jpeg help request
Oh! I just saved the image, it's a .png! That makes more sense, as they do (can) use a linear pixel compression!
@antiphasis @elb they actually are jpegs. The attached photo was a screenshot to show what it looks like, hence the PNG. Here is a direct download for one of the JPEGs (9mb). https://dl.devinberg.com/f.php?h=1HaZxDGE&d=1
As I mentioned, the files were good 13 years ago. This is what they look like when opening them off of the flash drive they have been sitting on.
Just searched a little, it seems there are tools that may be capable of repairing damaged jpegs.
Here's a test - where 4 out of 5 tools failed: https://www.raymond.cc/blog/repair-and-fix-corrupted-images/
@antiphasis @elb yea, that doesn't look promising. I read somewhere that maybe a drive repair tool rather than an image repair tool might work, but I'll need to look into what tools are available for drive repair.