Can someone help with a corrupt CR2 file?

So I tried to open an older file. It opens in my file viewer, but when I try to process it or convert it it is obviously corrupt. This has happened a couple of times with some of my older cr2's I thought cr2 was lossless? whatever. Is there any way of recovering the file? It's not the most crucial picture, and I can obviously use the screenshot pic. But I would like to get more then just a 1400pixel "snipping tool" pic I will show examples of what i'm talking about.

This is what I see when I open the file

This should help If not I found it by googling extract preview from CR2 file, which will give you a load more options too. The preview is literally a JPEG image embedded in the CR2 file. That means that although the main RAW data for the image may be toast, and completely unrecoverable the preview section may remain undamaged.

You may also run across the situation where the preview is corrupted, while the RAW data is fine. So always check that what seems to be a corrupt image in a program that just uses the preview is really corrupt by opening it in an actual RAW converter program.

Finally as an Royal Air Force veteran who is entitled to wear the Fist and Sparks badge, although a radar tech, not communications, that is a Morse key, not a "telegraph tapper".

Alan

this might sound goofy, but make an adjustment and zoom in to 100 percent. I've see weird stuff like that happen to previews and all that needed to happen was for it to "redraw" the image.

might also just click to open the image in Ps to see what happens.

Post a link to the offending RAW file, and let us have a try...to determine if it is your current software, or if the file is truly corrupted. Someone else might be able to open the file, and you have a better understanding of what is happening, based on multiple efforts in the POTN community.

BigAl007 wrote in post #18947984
This should help If not I found it by googling extract preview from CR2 file, which will give you a load more options too. The preview is literally a JPEG image embedded in the CR2 file. That means that although the main RAW data for the image may be toast, and completely unrecoverable the preview section may remain undamaged.

Alan

Ok that did work for me thank you very much! I managed to extract a 5.MB JPG out of it. I'll take what I can get & I can work with that. Much better than completely stuffed.

BigAl007 wrote in post #18947984
Finally as an Royal Air Force veteran who is entitled to wear the Fist and Sparks badge, although a radar tech, not communications, that is a Morse key, not a "telegraph tapper".
Alan

That is also very helpful and much appreciated. Thanks

Wilt wrote in post #18948182
Post a link to the offending RAW file, and let us have a try...to determine if it is your current software, or if the file is truly corrupted. Someone else might be able to open the file, and you have a better understanding of what is happening, based on multiple efforts in the POTN community.

Left Handed Brisket wrote in post #18948132
this might sound goofy, but make an adjustment and zoom in to 100 percent. I've see weird stuff like that happen to previews and all that needed to happen was for it to "redraw" the image.

might also just click to open the image in Ps to see what happens.

Left Handed Brisket wrote in post #18948132
this might sound goofy, but make an adjustment and zoom in to 100 percent. I've see weird stuff like that happen to previews and all that needed to happen was for it to "redraw" the image.

might also just click to open the image in Ps to see what happens.

kirkt wrote in post #18948119

dcraw -e <filename>.CR2

This will extract the JPEG embedded within the raw file. I recall that all of my 5Dx raw files contained full-sized JPEGs, perhaps the 7D does as well. As far as the raw file goes, can you post a link here to download it (Dropbox, etc.)? Lossless compression is not the same as a corrupt file.

kirk

Thanks for all of the other suggestions if Bigal's suggestion didn't work I would given that all a shot. I appreciate everyone's input and help

Scraping the jpg preview off the file is a pretty good indication that the underlying raw is still intact too.

Someone else can try I guess. I'm a little possessive of my raw files (even if they aren't high quality, or corrupt lol) but I suppose it can't hurt, if it's corrupt.

Google Drive?
https://drive.google.c​om …sZ8mfvni/view?u​sp=sharing

Sadly, the RAW file is well and truly shot. I tried the following

Photoshop - same as already reported.
DxO - process and save to DNG. Result, a blank image
Silkypix Developer Studio 9 - save to TIF. Result, a corrupt image
SNS-HDR (which uses DCRAW). Result, a corrupt image
Irfanview displays the embedded JPEB and will save it. But when I used Save as RAW, the result was corrupt.

I've had that happen to my CR2 files in LR. Good thing I also had my 7d set to save in both RAW and Jpg on two separate cards.

Restore the image from your backup.

I really appreciate everyone's help and suggestions.

I'm happy with the jpg that I recovered. The resolution is acceptable, and it's better than the snipping tool image. I can use the image on my blog now, and that is the main thing.

Thanks to everyone for trying.

gjl711 wrote in post #18948644
Restore the image from your backup.

You mean from your off-site backup?

ejenner wrote in post #18949455
You mean from your off-site backup?

Why off site? Any backup would work just fine assuming that the file was in good shape when backed up.