Tag Archives: digital image repair

Why photo recovery and undelete software recover corrupt jpeg files.

In this post I will try to explain why most tools fail recovering fragmented digital photos and instead recover corrupt JPEG files. If half the data is missing due to file fragmentation I can not repair the JPEG (see: JPEG Repair Service). It is better to have a tool that can recover fragmented files directly. Why… Read More »

Photo recovery software: Intact previews, but corrupt photos

An often heard complaint after using digital image recovery software, is that it shows intact previews, but recovers corrupt photos. How does this happen? The preview is not the actual image data To understand how this can happen we need to have closer look at the internal structures of popular image formats. The most common image formats… Read More »

JPEG Repair after bad sector damage

JPEG Repair after it was damaged by a bad sector. The following example represents JPEG Repair after bad sector damage (512 bytes) right in the middle of compressed image data. Using a binary editor this data is zeroed. JPEG repair is performed on this image file. File affected by one or more bad sectors typically show… Read More »