Category Archives: How to Amped Authenticate

How to Use Amped Authenticate to Reveal Traces of Former JPEG Compression in Seemingly Uncompressed Images

Dear Amped friends, welcome to one more tip! Following the recent mini-series about unveiling traces of double JPEG compression, today we’ll show how Amped Authenticate can reveal if a seemingly uncompressed image was actually JPEG compressed in its past. Keep reading to find out more!

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

Hello 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, but you can also just read this one now.

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

Hello, 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 your evidence image, and in the next tip of the series, we’ll deal with estimating the quality of possible previous JPEG compressions. Keep reading!

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Learn How to Use Amped Authenticate’s Shadows Filter Like a Pro for Clearer Results and Faster Processing!

Dear 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 any value.  Avoiding useless constraints will make processing faster and produce more pleasant output images. Keep reading!

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Deeper and Deeper: Learn How to Verify the Consistency of Image Sequences With Some Less-Known Metadata!

Hello 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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Using Amped Authenticate for Video Source Identification When You Only Have Images As Reference

Dear 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 source identification of digital videos when only images are available as reference, and vice-versa! We’ll provide an introduction to the problem and then go practical with a step-by-step example available for everyone. Keep reading!

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

Welcome to a brand new tip, dear friends! Today we’re showing you one of the newest features introduced in Amped Authenticate: the possibility to use the PRNU Identification filter to compare the sensor noise obtained from two sets of images. Reading this sentence left you confused? Then this tip is just for you! Keep reading to shed light on the mystery…

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The Truth Will Come Out: Easily Verify Time and Location Metadata With Amped Authenticate and Avoid Being Deceived by Them!

Dear 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 about! Today we’ll see how Amped Authenticate makes it easy to verify whether shadows in your evidence images are consistent with the declared time metadata. Keep reading to find out more!

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