Photos Export Issue

[Deadeyeshark]

I've taken this photo on an iPhone 7 plus, then picked it up through Photos on my iMac (iOS 12.1 and MacOS 10.14.1). If I move a photo from the Photo's App to the mac desktop desktop it converts the file from HEIC to JPEG, but I get a weird pixilation at the bottom of the photo, anyone come across this? If so, have you found a solution?

I've tried both dragging onto the desktop and also exporting from within Photo's and produces the same results.

 

[SoggyCheese]

What happens if you export to PNG?

 

[Deadeyeshark]

What happens if you export to PNG?

Tried TIFF, PNG and JPEG, all produce the same results.

 

[chown33]

Try mailing yourself the HEIC image, then save it to a folder on your Mac. Open in Preview and how does it look? Zoom in to the problem area. How does it look?

Save as a different format in Preview. How does the new format look?

Open in a non-Apple image program. How does it look? Save in different format. How does it look?

The problem might be corrupted data in the original image, or it might be a problem with whatever convertor is being used, or a combination of both.

If the problem is image corruption, it might be happening in the Photos transfer, so emailing yourself the image makes it go through a completely different transfer route.

 

[Deadeyeshark]

Thanks for the response.

Dragging onto the desktop emailing and exporting produces the same result. It’s not just the one photograph - it’s quite a few.

I have switched back to JPEG on my iPhone 7 Plus and that seems to have solved the issue. Dragging the corrupted photos into a HEIC - JPEG converter on the Mac also fixes the photos. Not an ideal situation, but I would think it’s either an issue with iOS or my phone.