NLM-ISPC
A Non-Local Means (NLMeans) denoise filter for VapourSynth (API 4), implemented with ISPC for CPU-only execution.
Serves as a CPU-based drop-in replacement for NLMeansCL without requiring OpenCL or GPU runtime. Supports x86 (SSE2, AVX, AVX2, AVX-512) and ARM (NEON).
Installation
Python Wheel
pip install vapoursynth-nlm-ispc
API
nlm_ispc.NLMeans(
clip: vs.VideoNode,
d: int | None = 1,
a: int | None = 2,
s: int | None = 4,
h: float | None = 1.2,
channels: str | None = "AUTO",
wmode: int | None = 0,
wref: float | None = 1.0,
rclip: vs.VideoNode | None = None,
) -> vs.VideoNode:
Parameters
clip: Input clip. Supports 8-16-bit integer and 32-bit float formats (Gray, YUV, RGB).d: Temporal radius.0= spatial filtering only;> 0= temporal radius ($2d + 1$ frames).a: Search window radius. Search area is $(2a + 1) \times (2a + 1)$ pixels.s: Similarity neighborhood patch radius. Patch size is $(2s + 1) \times (2s + 1)$ pixels.h: Filtering strength. Higher values increase smoothing.channels: Color channels to process ("Y","UV","YUV","RGB","AUTO")."AUTO"processes"RGB"for RGB clips and"Y"(luma) for Gray/YUV clips."YUV"processes all 3 planes (requires YUV444).
wmode: Weight function:0: Welsch1: Modified Bisquare A2: Modified Bisquare B3: Modified Bisquare C
wref: Weight multiplier for the central pixel.rclip: Reference clip used to calculate similarity weights. Must matchclipformat and frame count.
Compilation
Requirements
- CMake >= 3.20
- C++20 compliant compiler
- ISPC
Build
uv build --wheel
1 maintainer
Metadata
1 maintainer
Release files for vapoursynth-nlm-ispc 4.1
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
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| vapoursynth_nlm_ispc-4.1.tar.gz | 43.8 kB | With provenance | Details |
Built distributions (wheels)
| File | Reset | |||
|---|---|---|---|---|
| vapoursynth_nlm_ispc-4.1-py3-none-win_amd64.whl | Python 3 | none | Windows x86-64 | Details |
| vapoursynth_nlm_ispc-4.1-py3-none-manylinux_2_34_x86_64.whl | Python 3 | none | Linux glibc 2.34+ x86-64 | Details |
| vapoursynth_nlm_ispc-4.1-py3-none-manylinux_2_34_aarch64.whl | Python 3 | none | Linux glibc 2.34+ ARM64 | Details |
| vapoursynth_nlm_ispc-4.1-py3-none-macosx_15_0_x86_64.whl | Python 3 | none | macOS 15.0+ x86-64 | Details |
| vapoursynth_nlm_ispc-4.1-py3-none-macosx_15_0_arm64.whl | Python 3 | none | macOS 15.0+ ARM64 | Details |
Total release size: 1.8 MB
Release files / vapoursynth_nlm_ispc-4.1.tar.gz
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