Lingyu,
Thank YOU for reaching out. It’s encouraging to know that Topaz’ engineering is listening.
I just sent you 6 files. After I started sending the PSD’s, it occurred to me that they had already been processed using Topaz 1.4.0 (to my taste) so they’re not going to show you anything. Please ignore the psd’s and look at the dng’s opened in Photoshop.
I’ve since upgraded to 1.4.2 and it is better, in that it now suggests both sharpening and noise reduction for noisy images.
216-1061: Tunnel with extreme noise. V1.4.0 suggested only sharpening. V1.4.2 suggests both sharpening and noise reduction. I’ve looked at 200% and sharpening does almost nothing. Noise reduction works well.
223-1543: Sunflower in daylight at ISO 100. V1.4.0 and V1.4.2 suggest only sharpening. Because it’s a high contrast backlit shot, even at 100%, it’s obvious that the flower petals and central flower area benefit from noise reduction. At 200%, it’s even more obvious.
223-1580: Milky Way through trees with considerable noise: V1.4.0 suggested only sharpening. V1.4.2 suggests both sharpening and noise reduction. Sharpening makes the subject area (which AI identified as the trees) look way over sharpened, especially considering that the sky is actually the point of interest.
Again, V1.4.2 is at least suggesting noise reduction when it is obviously needed. However, it still suggests sharpening for every image, even when it does nothing or degrades the image.
Just a note… I contribute stock images to Adobe Stock, Dreamstime, and Shutterstock. Shutterstock is HIGHLY sensitive to noise and will reject the image if there is ANY noise or noise reduction/sharpening artifacts present. Adobe is less sensitive, but still rejects images for very slight noise. Dreamstime is not at all picky about noise and accepts almost anything. But I submit the same files to all three, so I have to process to Shutterstock standards.
I hope this helps. Please let me know if I can provide more images that would be useful.
Thanks,
Scott