![]() The reduction of noise with PRIME on high ISO images can be so satisfying that the loss of some of very fine detail may occasionally be an acceptable compromise, especially in very noisy images where some of the fine details may be lost in the noise anyway. I usually keep the luminosity setting between 20 and 30. When PRIME is enabled, the preview and loupe windows give you a comparison as well as a general idea of how much noise reduction is being applied.Īgree completely although I think the issue of artifacts with PRIME is far less noticeable than with all other software I’ve tried. PRIME is only applied to the whole image through exporting. The effect of PRIME is only visible in the small loupe preview window. #3 - That’s right, when PRIME is selected, HQ noise reduction continues to be applied to the main preview window. ![]() (I use Topaz Labs Denoise AI or Sharpen AI after using DxO’s HQ mode when I’m not happy with PRIME.) Using the healing/clone tool or other local adjustments where these artifacts occur can help. The higher the ISO (or the farther shadows have been lifted in exposure), the more noise reduction you will probably want, but don’t expect detail to be preserved perfectly without keeping some grain.Ī significant problem we can encounter with PRIME sometimes (maybe rarely) is artifacts in the noise patterns: in particular, light-colored blotches, worms/maze patterns that the maze adjustment can’t handle, and posterization/banding. 40% can be fine in a well-exposed image, but some very fine detail could be softened slightly. #2 - The degree of noise reduction you’ll want to apply varies. It can be good to at least lower luminance noise reduction so that some fine grain remains in the shadows. The “magic wand” can remove so much grain that some of the detail is also smoothed out. #1 - Yes, it’s useful to lower the sliders for PRIME, because any noise reduction requires a balance between removing noise and preserving details. Well i see outside the box also changes happening at 200%ġ- is it usefull to manually lower PRIME or does the algoritm only “attack” the noisy bits and pieces?Ģ when 40% magic want is applied in a preset how much “damage” does this on base iso images?ģ we see HQ working on the hole image in preview modes at 100% and in prime modes we see some working also => ergo HQ keeps running in PRIME modes and follows the slider of PRIME for the hole preview? to simulate the strenght applied by the PRIME setting? They say you can’t see in the preview PRIME working except inside the “box” When i have under exposed high iso (when my auto iso hits the limit i set and shutter time is getting to 1sec (this case 1/13sec) other things are in order, motionblur, red noise by my sensors charcteristics, iso is pushing my lightness/brightnes in preview to the roof (signal value is sampled in a smaller step so noisevalues is measured with the image signal is more visual.), so details are in danger. Why all this examples?, well i am a lazy guy in denoising i can check with the tuto of cambridge which noise i can see but mostly i have PRIME at magic want and let “it” decide what to do. Some examples of prime at different levels:(iso 3200 and dark section of the image RGB level (38 31 38.) Luminance noise is the spickled area’s which ruins the object planes and Chromanoise does put color of the wrong kind in the colorplane which creates a blotchy plane if you have too much denoising applied. Third fact: the preview window is that small that the previewing box at 100% has still a small portion of the previewed image. My theory is because it’s working before the RAWdata is run through demosiacing there isn’t any “ISO-value” only exposure value and a “measuring tape index” to asign the lightness or brightnes of the preview. Second fact: if you look at the sliders in “maqic want” modes OKL, what is my subjective? We know PRIME is a very good noise remover/suppressor and it leaves al lot of detail remaining wile removing noise but do we need to manually control this feature? Which noise is which? Cambridgeincolour tuto (RAW only) corrects coarse (“low frequency”) noise, such as pixel clusters that can affect skin rendering. Chrominance reduces colored noise (speckles of unwanted color, such as yellow on flesh tones, or blue on grey tones) to which the eye is particularly sensitive.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |