changing multiple clips at once denoiser iii

You can also set h=2.8 if the output remains too noisy. One setting that can allow increasing denoising (and performance) It runs with BM3D sigma=9 and KNL h=1.4, and generally you shouldn't change that. One strange aspect of xClean is that denoising is automatic and there's very little room to configure denoising strength other than reducing the overall effect. XClean is essentially KNLMeans with advanced pre-filtering and with post-processing to renoise & sharpen to make the image look more natural.

A lower value doesn't remove enough noise, and a higher value only makes the edges sharper. Similarly, BM3D performs best with sigma=9. KNLMeans also keeps a lot of data from the clip passed as rclip, so doing a good prefilter highly impacts the output. (tested 5K GoPro footage and noisy WebCam), denoising with less than h=1.4 looks too noisy, and anything above it blurs out the details. KNLMeans does a good job at denoising but can soften the image, lose details and give an artificial plastic look. If only darker areas contain noise, set strength=-50įor better performance, set m1=0 or m2=0, or set m1=.5 and m2=3.6 (downscale)īM3D performance can be greatly improved by setting radius=0, block_step=7, bm_range=7, ps_range=5įor 720p WebCam, optimal settings are: sharp=9.5, m1=.65, h=2.8įor 288p anime, optimal settings are: sharp=9.5, m1=.7, rn=0, optional depth=1įor 4-5K GoPro (with in-camera sharpening at Low), optimal settings are: sharp=7.7, m1=.5, m2=3.7, optional strength=-50 (or m1=.6, m2=3.8 if your computer can handle it) Performance-wise, BM3D pass is the heaviest and helps recover fine details, but this script runs 1 pass of BM3D whereas stand-alone BM3D runs twice.ĭefault settings provide the best quality in most cases. The hard work is in preserving the details in a way that feels natural.ĭesigned for raw camera footage to remove noise in dark areas while preserving the fine details. Removing noise is easy - just blur out everything. The objective is to remove noise while preserving as much details as possible.

XClean runs MVTools -> BM3D -> KNLMeans in that order, passing the output of each pass as the ref of the next denoiser. Requires: rgsf, rgvs, fmtc, mv, mvsf, tmedian, knlm, bm3d, bm3dcuda_rtc, bm3dcpu, neo_f3kdb, akarin, nnedi3_resample, nnedi3cl

Changing multiple clips at once denoiser iii