AI-generated images are now being used by media and businesses (see Levi’s new campaign). This already complicates the lives of photographers who feel threatened with being replaced (the irony being that their own online photos have been used to train these AIs without their consent) but also users who must learn to detect the true from the false.
Learning to recognize them will allow you to avoid several risks because these clichés can be used to deceive people or for malicious activities such as online fraud, data manipulation, harassment…
On my animal photo library, when buying a photo, I suggest to authenticate them by sharing the EXIF data stored in the metadata of the image file. On request, I can also send you a screenshot of the original RAW file (photo before processing).
1. Check metadata
Stock photo companies like Alamy that admit AI images into their libraries require contributors to tag their photos in metadata as AI-generated; in the image title, description, and image tags (making it easy to find or exclude AI-created photos when browsing their catalogs). Finding these tags is the easiest way to spot an AI-generated image.
2. Find the original image
3. Using tools that detect if the photo has been manipulated by AI or Photoshop
Other free detection tools:
4. Look for anomalies in the image
A good way to spot an AI-generated image is to look for anomalies: visual errors caused by the imperfect functioning of machine learning algorithms during the creation process. Glossy textures, irregular eyes, teeth that don’t look natural, missing or deformed body parts because AI generators are still struggling to reproduce human hands, furnitures or glasses that merge with the person’s face, text inside the image, cats with a queue in the wrong place, etc.
Other visual distortions may not be obvious, so you should look carefully. Missing or mismatched texts, blurred background where there shouldn’t be, blurs that don’t look intentional, incorrect lighting and shadows, etc.
If you find any of these in an image, you’re most likely looking at an AI-generated image.
However, generative AI models, like Midjourney or Dall E, seem to release an improved version of their apps every day, producing higher quality images every time. Therefore, it is still possible for a decent looking image without visual errors to be produced by the AI.