This has the negative effect of introducing some spots in the image and you have to compensate for this by using the other 2 sliders (smoothness and sharpness) I don't remember their exact notation. Using only the noise supresing slider is not enough. Try to use the other sliders in Topaz Denoise too. Hopefully future versions of Topaz will fix this issue (then the price really will go up probably). Topaz is relatively simple but gives powerful results (if you're careful), it just takes much longer to render that results. only to arrive at a noise suppression level that could be either good or bad for the image you are doing. The others have so many factor adjustments that you could spend much more time trying to make adjustments by color channels, frequencies, contrast, camera profile, etc., etc. If you are careful with the amount of noise suppression (after 55 seconds!!) you'll get pretty decent detailed results too. It gives excellent results for what it is suppose to do. Despite it's inability to adjust specific detail in Topaz it retains detail quite well. I find though, believe it or not, that I too like Topaz better. ![]() Only level of noise suppression can be adjusted with Topaz. As to detail it was a little harder to make comparisons because level of detail can be adjusted with Noiseware and Noise Ninja. I have a Apple MacPro with 4g ram and I suppose even these times would vary depending on hardware being used. ![]() On the portrait Topaz took 58 sec instead of 55 sec. ![]() I found only slight differences between the 2 images in terms of rendering times. I took 2 images (1 a complex harbor scene, 1 a portrait). As some have said Topaz's rendering time is longest by far.
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