14 lines
483 B
TypeScript
14 lines
483 B
TypeScript
import * as tf from '../../dist/tfjs.esm';
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export function normalize(x: tf.Tensor4D, meanRgb: number[]): tf.Tensor4D {
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return tf.tidy(() => {
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const [r, g, b] = meanRgb;
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const avg_r = tf.fill([...x.shape.slice(0, 3), 1], r, 'float32');
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const avg_g = tf.fill([...x.shape.slice(0, 3), 1], g, 'float32');
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const avg_b = tf.fill([...x.shape.slice(0, 3), 1], b, 'float32');
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const avg_rgb = tf.concat([avg_r, avg_g, avg_b], 3);
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return tf.sub(x, avg_rgb);
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});
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}
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