There is a reason why the famous magical images of forensic technicians in films are completely unrealistic. But Adobe is now working quite successfully to be able to offer at least somewhat comparable effects.
In general, the opinion is that, even with good image processing, you can only get out of a photo what is in the original picture. If the resolution is so low that, for example, a license plate can only be captured by a few pixels, no matter how much skill it is, it will not be possible to reconstruct legible writing.
A new function in Adobe’s Photoshop now casts doubt on this assumption. Because at least to a certain extent the “Super Resolution” feature ensures that an edited image can offer more than the original would suggest. The magazine PetaPixel is currently reporting positive experiences.
The function essentially ensures that the resolution of a photo is quadrupled. This is basically nothing new, various other tools already offer such a possibility. And it has long been known from high-definition televisions that interpolate entire videos to higher resolutions. The problem here is always that the sharpness of detail does not change automatically. Either you get relatively blurred areas over several pixels or artificial focusing causes unsightly artifacts.
Large prints of older photos
The new Adobe function, however, takes things a lot further. An AI model works in the background, which, according to the manufacturer, has been trained on millions of images. The result is that the software can quadruple the resolution and the result really looks like you took a picture with a much higher resolution image sensor.
The colleague at PetaPixel tested the performance of the function, for example, on a recording that had been on his hard drive for years and that was originally made with the 12-megapixel sensor of a Nikon D700. Super Resolution brings the photo to a resolution of 48.2 megapixels and achieves a quality of detail that can be printed on large-format surfaces without hesitation, which would have resulted in a very pixelated image in the original on closer inspection. The situation was similar to a portrait shot with a Fujifilm GFX 100, which was interpolated from 11205 x 8404 to 22409 x 16807 pixels and resulted in razor-sharp details.
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