The latest in Photoshop is an AI capable of multiplying the resolution of a photo by four and improving detail
Adobe is loading its most popular photo editing program, Photoshop, artificial intelligence. Prepare a function for replace the sky, It allows select subjects from a photo automatically, applies filters intelligently and now the company ensures that its software is capable of multiply by four the resolution of the photos without losing quality.
Adobe has christened this new feature “Super Resolution“It is already operational in Camera Raw 13.2 and will soon be coming to Lightroom and Lightroom Classic. Super Resolution uses a machine learning model trained with” millions of photos “that, according to Adobe,” can intelligently enlarge photos while maintaining the clean edges and preserve important details. “
Why more megapixels?
Simply put, Super Resolution is a feature capable of convert a ten megapixel photo to a 40 megapixel photo. To do this, Adobe trained a machine learning model with millions and millions of pairs of high- and low-resolution image chunks, so that the model was able to learn how to increase the size of low-resolution images.
It is basically a deep convolutional neural network: to determine how to sample a given pixel, the system analyzes the surrounding pixels to obtain context. The first results are not usually good, but the more the model is fed and the more pairs of images it has, the more precise it becomes and the more capable it is of resizing the photo without losing quality. In the image below we can see how the model works when fully trained.
And why would we want more megapixels? After all, it is not uncommon for today’s mobiles have up to 108 megapixels and that DSLR cameras have 24 or more megapixels. It may not always be necessary, but there may be times when yes. Some examples could be old photos, taken in lower resolution, which we can now enlarge; or subjects photographed from afar, which lose sharpness when enlarging the photo.
The result, at least as shown by Adobe, seems to be really good. The user only has to press the command in question and the computer will return a new DNG file with the enhanced photo.
Any edits made to the original DNG will carry over to the modified DNG. For now it worked limited to photos that are 65,000 pixels long and 500 megapixels. It works with RAW files, but also with JPEG, PNG and TIFF. As we said, it is already available in Camera Raw 13.2 and will soon be coming to Lightroom and Lightroom Classic.
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