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What’s in Your Past? A Guide to Spotting Traces of Double JPEG Compression With Amped Authenticate (Part 2)

Reading time: 5 minHello dear friends, ready for this week’s tip? Today we’ll be continuing the mini-series about investigating the life-cycle of digital images, specifically revealing previous JPEG compressions with Amped Authenticate. If you missed the first tip, it’s here for you. Keep reading.

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Marco Fontani September 1, 2020
What’s in Your Past? A Guide to Spotting Traces of Double JPEG Compression With Amped Authenticate (Part 1)

Reading time: 6 minHello, dear Amped blog fellows! This week we’re beginning a mini-series of two tips dealing with one of my favorite topics, image life-cycle investigation! They’re a bit more technical than usual, but I’m sure you’ll enjoy them. Today, we’ll see how we can use Amped Authenticate to look for traces of previous JPEG compressions in […]

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Marco Fontani August 18, 2020
Learn How to Use Amped Authenticate’s Shadows Filter Like a Pro for Clearer Results and Faster Processing!

Reading time: 3 minDear friends welcome to this week’s tip! I hope you didn’t miss the latest news about Amped Authenticate! With the last Update 17658, we’ve introduced a brand new filter category, called Geometrical Analysis, which includes the Shadows filter. Today we’ll demonstrate how to choose which shadow constraints to be added and which would not add […]

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Marco Fontani August 4, 2020
Metadata Analysis: Learn How to Verify the Consistency of Image Sequences

Reading time: 5 minHello dear friends, welcome to this week’s tip! Today we’re dedicating some room to metadata analysis with Amped Authenticate. In particular, we’ll deal with two cases where metadata were altered to change the acquisition date. But the forger was not clever enough, and we’ll catch him! Curious? Keep reading!

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Marco Fontani July 14, 2020
Discover Adaptive JPEG Quantization Tables and Save Yourself From Headaches!

Reading time: 5 minWelcome to this week’s tip, dear friends! Today we’ll use Amped Authenticate to go through a peculiar sample case. We will deal with a digital camera that supports adaptive JPEG quantization tables. It’s something that is not so often out there, so keep reading and don’t miss this opportunity!

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Marco Fontani June 9, 2020
Amped Authenticate’s PRNU Tampering Filter Turns Sensor Noise Into an Effective Forgery Localization Tool!

Reading time: 5 minHello, dear friends! This week’s tip is about Amped Authenticate‘s PRNU Tampering filter. We’ll see that, besides being used for source camera identification, PRNU noise can be a powerful tool to spot manipulated regions. Keep reading to find out more!

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Marco Fontani May 19, 2020
Using Amped Authenticate for Video Source Identification When You Only Have Images As Reference

Reading time: 11 minDear friends, welcome to this week’s tip! It’s a rather special one: longer, but also very exciting. We’ll see how the latest Amped Authenticate update enables you to carry out video source identification when only images are available as reference, and vice-versa! We’ll provide an introduction to the problem and then go practical with a […]

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Marco Fontani April 28, 2020
Unity Is Strength! In Challenging Cases, Amped Authenticate’s Compare CRP Makes Source Device Identification More Accurate

Reading time: 5 minWelcome to a brand new tip, dear friends! Today we’re showing you one of the newest features introduced in Amped Authenticate: the possibility of using the PRNU Identification filter to compare the sensor noise obtained from two sets of images. Did reading this sentence leave you confused? Then this tip is just for you! Keep […]

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Marco Fontani April 7, 2020
Easily Verify Time and Location Metadata With Amped Authenticate

Reading time: 5 minDear Amped fellows, welcome to this week’s tip! Like we did last week, we begin this tip with an Italian saying, which goes: “Le bugie hanno le gambe corte”. Literally, it translates to “Lies have short legs”, suggesting that, eventually, the truth will come out. And this is something Amped Authenticate users care a lot […]

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Marco Fontani March 3, 2020
How to Investigate Which Camera Model Took an Image Using Exif Metadata and JPEG Quantization Tables

Reading time: 4 minWelcome, dear Amped blog maniacs! Digital image forensics people have a bittersweet relationship with metadata. We love them… but can we trust them? Today’s tip is about cross-checking Exif metadata information about the camera model that allegedly created your evidence image. We’ll see that Amped Authenticate‘s JPEG Quantization Tables are a great resource, making your […]

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Marco Fontani February 11, 2020
Learn How to Use Amped Authenticate’s Command Line Interface to Quickly Analyze or Triage Lots of Images!

Reading time: 3 minHappy New Year dear blog friends! Welcome to the first tip of 2020! Today we’re showing you a rather hidden functionality of Amped Authenticate: the possibility of loading and processing images using the command line interface! It’s something that comes in pretty handy when you have to deal with a lot of files and want […]

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Marco Fontani January 7, 2020
Add Screenshots to Forensic Image Reports in Amped Authenticate

Reading time: 4 minDear Amped blog readers, welcome to this week’s tip! Today, we’re dedicating some room to a simple yet very effective trick. The goal is to make your forensic image analysis reports in Amped Authenticate more comprehensive and clear. We’ll see how we can effectively add screenshots to our project and comment on them. In such […]

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Marco Fontani December 3, 2019