Tag Archives: jpeg repair

Alternative method for half grey or truncated JPEG photo repair

There are various examples on this website of repairs of half grey or truncated JPEG images. In those cases all image data is actually present, but due to an error or corruption only a part of it is visible. If data is simply missing because for example the file is partially overwritten or cut-off, repair… Read More »

Repair/Recover JPEGs encrypted by ransomware STOP Djvu

This article shows repair of JPEGs that fell victim of ransomware. This particular ransomware only encrypts part of the file. Due to this the JPEG header and some 150 KB of JPEG data are lost. Using a reference file and weeding encrypted data we can repair the photo.

Unknown or invalid JPEG Marker

If you get a Unknown or invalid JPEG Marker this means one of two: The photo viewer or editor encountered a JPEG marker it isn’t familiar with. The JPEG file is corrupt. To rule out cause 1, your photo viewer editor doesn’t recognize a certain JPEG marker, update your software and if that does not help, try… Read More »

The corrupt JPEGs that weren’t corrupt

Often I am asked to repair JPEGs that can be opened but don’t display correctly. Many of those look okay for some part, but turn into a grey area at some point. Repairing these files (or recovering them as we’ll see) isn’t always straight forward and sometimes requires some detective work. Half grey photos In… Read More »

In the wild corrupted photos and their fixes

It is true that these are close to impossible to repair using PhotoShop like editors because it’s the underlying data that is corrupt. It means standard photo restoration techniques fall short as they work with the data that is available. JPEG-Repair is a tool designed to remove the corrupt data.

Photos on SD card are corrupt

When you discover photos on your SD card are corrupt you should: Do as little as possible (read: nothing) with the card. Do NOT run chkdsk on the card itself! Create a disk image of the card immediately! There are free and paid ways to try to recover or repair your photos. So I’ll be… Read More »

How to fix and open recovered photos?

Unfortunately it is a common problem that you are unable to open recovered photos after using file recovery, undelete or photo recovery software on a SD card. In this post I will make some assumptions: Photos are on a memory card and therefor: File system is a variation of FAT  (FAT32, exFAT) File type is… Read More »

Recent changes to JPEG-Repair Toolkit

2.8.82 # I removed bunch of code related to detection of encoding, encryption etc. of data. There are no functional changes. Purpose of the drill is to get rid of any code that may trigger false positives from AV security products which are a plague lately. JPEG-Repair and JpegDigger are both clean. I try to… Read More »

Fake memory cards

Not a week goes by where I am not confronted with loss of digital photos caused by fake memory cards. The sad news is that as these photos were never actually saved to the card they can’t be repaired nor recovered by tools like JPEG-Repair or JPEG Recovery LAB. A 32 GB card that you… Read More »

JPEG repair, example of a heavily corrupted photo

In this short blog post I show an example repair of a heavily corrupted and distorted JPEG photo. End result is far from a beautiful picture, but sometimes something is better than nothing. Specially if it is one of the few photos of a loved one that is no longer with us. This is what… Read More »