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What are the best tools for verifying the authenticity of images and videos?

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In the digital age, images and videos can be easily manipulated, faked, or taken out of context to spread misinformation or propaganda. As a journalist, you need to be able to verify the authenticity and source of the visual content you use or encounter online. Fortunately, there are some tools and techniques that can help you do that. Here are some of the best ones you should know and use.

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Daniel Mittelstaedt, PhD

Scientific Published Author in MRI, CT, infrared and polarized light imaging from the underlying physics using data…

1 Reverse image search

One of the simplest ways to check if an image is original or has been used before is to perform a reverse image search. This means uploading the image or its URL to a search engine like Google Images or TinEye and seeing what results come up. You can compare the date, location, and context of the image with the original source or other sources that have used it. You can also find out if the image has been edited, cropped, or altered in any way.

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Daniel Mittelstaedt, PhD

Scientific Published Author in MRI, CT, infrared and polarized light imaging from the underlying physics using data analyses and results that drive the science. I am open to a new opportunity send me a message.
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In order to determine the authenticity of the video, you must ensure that the original pixels are not altered with audit logs showing any changes to the values of each individual pixel. Be wary, AI can replicate faces and anything, so you must have some type of audit log of the original or raw image showing any changes to the picture or video. Video used to be 100% accurate, but with AI, anyone can alter videos that are false and impersonate another. In that case, make sure that you contact the real me and not a bad actor

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2 Metadata analysis

Another way to verify an image or a video is to examine its metadata, which is the information embedded in the file that records details like the date, time, camera model, GPS coordinates, and other technical data. You can use tools like ExifTool or FotoForensics to extract and analyze the metadata of an image or a video. You can also use tools like InVID or Amnesty International's YouTube DataViewer to get the metadata of videos hosted on platforms like YouTube or Facebook. Metadata can help you confirm or contradict the claimed origin, date, or location of an image or a video.

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3 Forensic analysis

Sometimes, you may need to go deeper and look for clues that indicate if an image or a video has been tampered with or generated by artificial intelligence. You can use forensic analysis tools like Forensically or JpegSnoop to detect signs of manipulation, such as inconsistent lighting, shadows, pixels, compression, or noise. You can also use tools like Fawkes or Sensity to identify deepfakes, which are videos that use AI to replace the face or voice of a person with another.

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4 Geolocation and verification

Another important aspect of verifying images and videos is to determine if they match the claimed or reported location and time. You can use geolocation tools like Google Maps, Google Earth, or Wikimapia to compare the landmarks, buildings, roads, or terrain features in the image or video with the real-world location. You can also use verification tools like SunCalc or Wolfram Alpha to check the position and angle of the sun, moon, or stars in the image or video and see if they correspond to the date and time.

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5 Source and context

Finally, you should always try to find out who created or shared the image or video and what was their intention and agenda. You can use source analysis tools like Whois or DomainTools to check the ownership and history of the website or domain that published or hosted the image or video. You can also use context analysis tools like Hoaxy or Botometer to track the spread and influence of the image or video on social media and see if it was amplified by bots or trolls. You should also look for other sources that can corroborate or contradict the image or video and its claims.

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6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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What are the best tools for verifying the authenticity of images and videos?

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1 Reverse image search

2 Metadata analysis

3 Forensic analysis

4 Geolocation and verification

5 Source and context

6 Here’s what else to consider

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