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update backend notes

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Vladimir Mandic 2021-07-29 09:40:06 -04:00
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15
Backends.md

@ -16,12 +16,15 @@ as TensorFlow implementation in JavaScript is by far the slowest
## WASM Backend ## WASM Backend
- WASM backend has good resuts under specific conditions: WASM backend has good resuts under specific conditions:
- Enable WASM SIMD support in your browser - Enable WASM SIMD support in your browser
(CPU parallel processing instructions) (CPU parallel processing instructions)
- Reduce size of input image (e.g. webcam) - Reduce size of input image (e.g. webcam)
as WASM does not have optimized image extraction methods as WASM does not have optimized image extraction methods
<br>
### Loading WASM Files ### Loading WASM Files
WASM backend requires access to `wasm` files which are part of `@tensorflow/tfjs-backend-wasm` package and included in WASM backend requires access to `wasm` files which are part of `@tensorflow/tfjs-backend-wasm` package and included in
@ -34,7 +37,15 @@ Cross-Origin-Opener-Policy: same-origin
Cross-Origin-Embedder-Policy: require-corp Cross-Origin-Embedder-Policy: require-corp
``` ```
Or load WASM files from a CDN such as <https://www.jsdelivr.com/package/npm/@tensorflow/tfjs-backend-wasm?path=dist> Or configure `Human` load WASM files directly from a CDN:
```json
wasmPath: 'https://cdn.jsdelivr.net/npm/@tensorflow/tfjs-backend-wasm@3.8.0/dist/'
```
Note that version of WASM binaries **must** match version of TFJS used by `Human` library
<br>
### How to enable WASM SIMD support ### How to enable WASM SIMD support