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Fix bug in usage of dequantizeLinear and quantizeLinear #331

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Merged
Honry merged 1 commit into from
Oct 27, 2025
Merged

Fix bug in usage of dequantizeLinear and quantizeLinear #331

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12 changes: 12 additions & 0 deletions image_classification/mobilenet_uint8_nhwc.js
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,12 @@ export class MobileNetV2Uint8Nhwc {
}

dequantizeLinear_(input, quantizateParams, dataType) {
// WebNN dequantizeLinear op requires the rank of scale and zeroPoint should be same as input.
const missingDims = input.shape.length - quantizateParams.shape.length;
if (missingDims > 0) {
quantizateParams.shape.push(...Array(missingDims).fill(1));
}

const scale = this.builder_.constant( {dataType: 'float32', shape: quantizateParams.shape},
new Float32Array(quantizateParams.scale));
let zeroPoint;
Expand All @@ -41,6 +47,12 @@ export class MobileNetV2Uint8Nhwc {
}

quantizeLinear_(input, quantizateParams) {
// WebNN quantizeLinear op requires the rank of scale and zeroPoint should be same as input.
const missingDims = input.shape.length - quantizateParams.shape.length;
if (missingDims > 0) {
quantizateParams.shape.push(...Array(missingDims).fill(1));
}

const scale = this.builder_.constant( {dataType: 'float32', shape: quantizateParams.shape},
new Float32Array(quantizateParams.scale));
const zeroPoint = this.builder_.constant( {dataType: 'uint8', shape: quantizateParams.shape},
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