![]() This is apparently necessary as the complex calculations of the AI are very time-consuming and therefore cannot be done on the fly like the other processing steps on the RAW file.Īs a big fan of DxO’s DeepPRIME algorithms so far, I naturally compared Lightroom’s new built-in AI denoising to them: Comparison of AI denoising in Lightroom (left) with DeepPRIME XD (right), 200% crop. When denoising, by the way, Lightroomn creates a new linear DNG file just like DxO DeepPRIME, which unfortunately has about the same size (about 220-240 megabytes on my R5). I didn’t measure the actual time required, though, because I didn’t had enough patience. With my laptop’s built-in Intel processor graphics, Lightroom estimated a whopping 25 minutes! for the process. However, if a powerful graphics card isn’t available, AI denoising in Lightroom becomes an enormous test of patience. On my laptop with i9 11980HK, 64GB RAM, and GeForce RTX 3080 with 8GB GDDR6 SDRAM, processing a 45-megapixel image from my Canon EOS R5 takes about 25 seconds. The result is quite respectable, isn’t it? Comparison of denoising in Lightroom without (left) and with AI (right), 200% crop.Īs with the other programs, the AI routines in Lightroom Classic need plenty of processing power from the graphics card. Here’s you can see a comparison of the new AI-based process (right) with the normal Lightroom denoising (left). Thus it is in principle a shot at ISO 25,600! ![]() It was taken at ISO 12,800 and was still underexposed by about one stop, because I limited the Auto-ISO range of my Canon EOS R5 between 100 and 12,800. The picture is a real stress test for denoising. I used the photo of our tomcat Tom again for this test, which I had already used for the test of DeepPRIME XP in PhotoLab 6. The result is updated accordingly in the detail-view on the left. With the slider in the upper right corner you can select the amount of denoising. The magnifying glass in the lower right corner of the preview image switches between a full image and a cropped view. The selection can be moved with the mouse. On the left, you can see a crop of the image enlarged to about 250%.
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