ai.onnx.MeanVarianceNormalization

ai.onnx · standard ONNX operator · ONNX opset ≥ 13

Description

Normalizes each group as (X - mean) / sqrt(variance), reducing over axes (default [0, 2, 3]).

See the ONNX MeanVarianceNormalization spec for the reference semantics.

Inputs

Outputs

Attributes

Default values (overridable per request):

Type constraints

Files

• metadata.json — kernel metadata (id, digests, provenance)
• manifest.json — the op contract (source of truth)
• test.json — correctness cases
• bench.json — benchmark + tuning cases
• mean-variance-normalization-serial-rows.wgsl.jinja
• mean-variance-normalization-subgroup.wgsl.jinja
• noop.wgsl.jinja
• norm-flat-apply.wgsl.jinja
• norm-flat-splitk-combine.wgsl.jinja
• norm-flat-splitk-partials.wgsl.jinja

Use with @huggingface/kernels

The loader derives every required output's shape and logical dtype from the manifest contract and this call. It then allocates the result tensors automatically.

The version: 1 option selects the published kernel contract; it is independent of any operator opset, contrib since_version, or model version.

Replace each *Data placeholder with a typed array containing the corresponding input data.

import { getKernel } from "@huggingface/kernels";

const kernel = await getKernel("webgpu-kernels/ai.onnx.MeanVarianceNormalization", { version: 1 });
const { y } = await kernel({ x: { data: xData, shape: [2, 2, 1, 2] } });