Friday, January 24, 2014

Batch processing in Authenticate

Usually, image authentication is a one-at-a-time process. But, what if you have a bunch of images in a folder from a single source? In Amped Software's Authenticate, you can batch process the files ... saving you a ton of time.

The Batch Processing tool allows the user to automatically process many files with one or more filters configured. For example, it is possible to apply all filters to a single image; all filters to entire folders of images; or only one filter to an entire folder of images.

Since the results of processing with heavy filters are saved in the cache folders, this is a very good way to leave the computer do the work without the user intervention (like overnight if there are a lot of big files). At the end of the processing you will have the ability to analyze the results very quickly, without the need to wait the execution of every filter.

A small warning, the full processing of many images with all filters can take very long time, depending on images' size and currently active filter configurations.

But wait, there's more ...

The Batch File Format Analysis tool allows Authenticate to quickly inspect the format of all images in a folder and quickly display detailed information about the formats in a big table. This tool provides a means to do a quick triage of suspicious files that may deserve further analysis without the need to run full processing on them.

You are asked to choose a folder where to perform the analysis, and those results will be displayed in a table. The displayed information is from the files present in the filter [File Format].

Specific features from the analysis of the image that can be a possible warning of image tampering are displayed in red ink. Similarly to the filter File Format filter, it is possible to modify the rules for the comparison by Menu > View > Program Options > File Format.

But wait, there's even more ...

The Batch File Format Comparison tool allows Authenticate to compare the formats of all images in an user selected folder with the current evidence image. The results are displayed in a table. The first row (id 0) represents the current evidence image used for the comparison. All the subsequent lines display the file format for the other images in the compared folder. The value of every cell is written in black if the value is the same as the evidence image, red otherwise. The last column value represents the number of differences found.

This tool is very useful when you need to verify if a certain camera is capable of creating a picture with a certain format. The user can take the camera and shoot as many different pictures as possible, with different types of scenes and different settings. Then the tool can be run to automatically to find if there is some combinations which yields compatible results.

If you want to look deeper at a specific image, just double click on a row of the table and it will load the file as evidence.

How cool is that?

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