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If you really like to find out if a photo is original or its edited copy then here is a software utility, named as JPEGsnoop which will help you to analyze the images if they have been edited before.Every digital photo contains a wealth of hidden information ,JPEGsnoop was written to expose these details to those who are curious.

Every digital photo contains a plenty of hidden information and JPEGsnoop is designed to decode the inner details of JPEG and Motion AVI files. To determine whether a photo has been edited, JPEGsnoop uses the signature stored in its internal database for the camera model used to capture the image against a large number of compression signatures. If the compression signature matches Photoshop, then most likely the photo has been edited. Below are examples of the report analysis for original versus edited photo.

One of the latest features in JPEGsnoop is an internal database that compares an image against a large number of compression signatures. JPEGsnoop reports what digital camera or software was likely used to generate the image. This is extremely useful in determining whether or not a photo has been edited / tampered in any way. If the compression signature matches Photoshop, then you can be pretty sure that the photo is no longer an original! This type of feature one of several sometimes referred to as Digital Image Ballistics / Forensics.

JPEGsnoop will open and attempt to decode any file that contains an embedded JPEG image, such as:

• .JPG – JPEG Still Photo
• .THM – Thumbnail for RAW Photo / Movie Files
• .AVI* – AVI Movies
• .DNG – Digital Negative RAW Photo
• .CRW, .CR2, .NEF, .ORF, .PEF – RAW Photo
• .MOV* – QuickTime Movies, QTVR (Virtual Reality / 360 Panoramic)
• .PDF – Adobe PDF Documents

Note : Video file formats (such as .AVI and .MOV) are containers, which can include video streams encoded in one of a wide variety of codecs. JPEGsnoop can only interpret this video footage if the codec used is based on Motion JPEG (MJPG).

Download JPEGSnoop from here : Click Here !