Category Archives: Tutorials

What’s wrong with this video?

What’s wrong with this video? Hint: look at the Inspector’s results for width / height.

Unfortunately, the answer in many people’s minds is …. nothing. I can’t begin to count the number of videos and images in BOLOs that attempt to depict a scene that looks quite like the one above. If you don’t know what you’re looking at, it’s hard to say what’s actually wrong with this video.

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The Temperature Tint Filter

We’re back from the Axon Accelerate Conference. What an incredible experience to meet so many law enforcement professionals who are enthusiastic about going from Capture to the Courtroom with reliable tools based in science and fact, not tools repurposed from the art world.

I’d like to share today the answer to a question posed to us at the Conference. The question was, “how do you quickly get rid of that annoying orange color cast that you find in images / videos taken in underground locations or grow houses.”

The answer is the Temperature Tint filter (found in the Adjust filter group). But, before we look at the filter and how it works, let’s talk about about Colour Temperature.

The chart above is from my old book, Forensic Photoshop. It’s helpful to look at colour temperature from the standpoint of the Sun as it rises – the horizon going from warm to cool. Another way to look at colour temperature is with the chart below that places temperature (the Planckian locus in Kelvin) as it relates to the CIE XYZ Color Space.

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The Flexibility of the Add Text Filter

If you’ve wondered at the filters in the Extract Filter group and asked yourself, what are these for, you’re not alone. Depending on your specific use case with Amped FIVE, there are likely a few filters for which you have no use in your current context. Others, you may use in a very specific way each time – but others may use them differently.

Thus it is that I encountered a request for a feature that’s been in Amped FIVE for quite some time. I’ve responded to the request with details on how to accomplish the task. Now, I’ll expand on the question and share a more detailed look at an often overlooked filter – Add Text. (click on the images to see the full-res versions)

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Working with Subtitles in Amped FIVE

Law enforcement officials have been sending out recordings of interviews to transcription services (or in-house transcribers) for decades. A complete and accurate text file of statements made in suspect / witness interviews has been a valuable aid to Detectives and Attorneys alike. Now that agencies have implemented new recording technologies (Body Worn Cameras, In-Car Video, & Interview Room recorders as examples), LEOs are looking to have the recordings made by these devices transcribed as well.

There are many services out there offering transcription for law enforcement. When choosing a service (when sending sensitive information outside of the LE agency), important considerations come into play. Not the least of these considerations are information security (CJIS) and standards compliance. There are plenty of services out there offering security and speed – both of which come at a cost. The most important consideration, however, is the format of the deliverable file. If the text is going to be used as subtitles for a video, it has to be formatted in a specific way. To be used as a subtitle file, It has to be formatted as a subtitle file. Not all transcription services offer this service. So it’s vitally important to choose a vendor that supports transcription that includes timing information and can produce a subtitle file. Without the timing information, synchronization of the text to the video becomes a manual (time consuming) process. With the timing information (see below), it’s fast and easy.

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The good news is, we’ve got you covered. In fact, we’ve been supporting the insertion of subtitles for years. Let’s take a look at how this is done.

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Amped DVRConv: The Beginner’s Guide

Simplicity, speed, and forensic integrity all come together in Amped’s latest software, providing law enforcement and digital forensic labs with a quick and easy stand-alone solution to the challenge of video conversion.

It’s been a few months since its release, so hopefully by now, you will have seen the blog posts and press releases regarding Amped DVRConv. It is a very easy program to use…it really is. You tell the application that you have a video file that you cannot play, the software analyzes the file and format, and then it gives you a video file that you can play in any standard playback software, along with the conversion log for full disclosure.

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How do you tell it? That’s easy as well. You either use drag and drop, copy and paste, or even have it ‘watch’ a specific folder and then convert immediately.

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Amped Advent Calendar: useful tips and tricks in Amped FIVE

This year, our great trainer Spready got into the holiday season by creating a special Amped Advent Calendar.

Every day, over the month of December, he opened one door on the calendar. Hidden behind each door was, not a small piece of chocolate, but an Amped FIVE top tip!

We hope you enjoyed these tips and found them useful. For those of you who missed them, we thought we would wrap them into one big blog post to put under the tree and open on December 25th. Let us know which door was your favourite. Enjoy!

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From the entire team at Amped Software, we wish all of you a safe and very happy holiday season!

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Amped on YouTube

Sometimes it’s easier to see something than it is to read about it.

We have our own YouTube Channel that is a fantastic way to learn about the software and the functions of each application.

As the last nine months have seen some huge advances in the software, we thought the time was right to launch a new set of screencasts, with the first being a look at the Interface in Amped FIVE.

Head over to the channel today, and remember to subscribe so that you get notified immediately when new videos drop.

If you find that your software looks a little different, and you have an active support plan, you can update to the latest version of Amped FIVE by going into the menu “Help” > “Check for Updates Online”. If you need to renew your SMS plan please contact us or one of our authorized partners.

 

 

Amped Authenticate: ADJPEG and NADJPEG filters

A few months ago we launched a pretty bulky Amped Authenticate update with several new filters and features. In this post we’ll explain how the ADJPEG and NADJPEG filters work and how to use them.

When an image is first compressed using the JPEG format, there is a uniformity to the Discrete Cosine Transform (DCT) coefficients throughout the image. If an object is placed into the image and then it is re-saved, there will two different levels of compression.

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CSI Video Enhancement, Finally Someone is Getting It

I am finally starting to see some articles which explain nicely what we have been trying to explain for a long time, regarding the video enhancement techniques that you see in CSI-type shows.

I just discovered a very nice article on How to Geek: Stop Believing TV’s Lies: The Real Truth About “Enhancing” Images. I already tried several times, even with our most recent blog post “The Untold Secrets of Forensic Video Enhancement: Myth versus Science”, to explain what is feasible and what is not feasible for enhancement, but the How to Geek guys do an even better job.

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I just want to cite and comment on a few parts, that I really like:

It’s one of the most common tropes in television and movies, but is there any possibility a government agency could really have the technology to find faces where there are only blurry pixels? We’ll make the argument that not only is it impossible with current technology, but it is very unlikely to ever be a technology we’ll ever see. Stick around to see us put this trope under the lenses of science and technology, and prove it wrong once and for all.

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