Image-to-Image
PyTorch
android

XLSR: Optimized for Qualcomm Devices

XLSR is designed for lightweight real-time upscaling of images.

This is based on the implementation of XLSR found here. This repository contains pre-exported model files optimized for Qualcomm® devices. You can use the Qualcomm® AI Hub Models library to export with custom configurations. More details on model performance across various devices, can be found here.

Qualcomm AI Hub Models uses Qualcomm AI Hub Workbench to compile, profile, and evaluate this model. Sign up to run these models on a hosted Qualcomm® device.

Getting Started

There are two ways to deploy this model on your device:

Option 1: Download Pre-Exported Models

Below are pre-exported model assets ready for deployment.

Runtime Precision Chipset SDK Versions Download
ONNX float Universal QAIRT 2.45, ONNX Runtime 1.27.1 Download
ONNX w8a8 Universal QAIRT 2.45, ONNX Runtime 1.27.1 Download
QNN_DLC float Universal QAIRT 2.45 Download
QNN_DLC w8a8 Universal QAIRT 2.45 Download
TFLITE float Universal QAIRT 2.45 Download
TFLITE w8a8 Universal QAIRT 2.45 Download

For more device-specific assets and performance metrics, visit XLSR on Qualcomm® AI Hub.

Option 2: Export with Custom Configurations

Use the Qualcomm® AI Hub Models Python library to compile and export the model with your own:

  • Custom weights (e.g., fine-tuned checkpoints)
  • Custom input shapes
  • Target device and runtime configurations

This option is ideal if you need to customize the model beyond the default configuration provided here.

See our repository for XLSR on GitHub for usage instructions.

Model Details

Model Type: Model_use_case.super_resolution

Model Stats:

  • Input resolution: 128x128
  • Model checkpoint: xlsr_3x_checkpoint
  • Model size (float): 115 KB
  • Model size (w8a8): 45.6 KB
  • Number of parameters: 28.0K

Performance Summary

Model Runtime Precision Chipset Inference Time (ms) Peak Memory Range (MB) Primary Compute Unit
XLSR ONNX float Snapdragon® X2 Elite 0.483 ms 8 - 8 MB NPU
XLSR ONNX float Snapdragon® X Elite 0.875 ms 8 - 8 MB NPU
XLSR ONNX float Snapdragon® 8 Gen 3 Mobile 0.576 ms 0 - 29 MB NPU
XLSR ONNX float Snapdragon® 8 Gen 1 Mobile 1.211 ms 0 - 35 MB NPU
XLSR ONNX float Qualcomm® Dragonwing™ IQ-8275 1.182 ms 0 - 4 MB NPU
XLSR ONNX float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.873 ms 0 - 60 MB NPU
XLSR ONNX float Qualcomm® QCS8450 1.211 ms 0 - 35 MB NPU
XLSR ONNX float Qualcomm® Dragonwing™ IQ-9075 1.169 ms 6 - 9 MB NPU
XLSR ONNX float Qualcomm® Dragonwing™ IQ-X7181 0.875 ms 8 - 8 MB NPU
XLSR ONNX float Qualcomm® Dragonwing™ Q-8750 0.468 ms 0 - 23 MB NPU
XLSR ONNX float Snapdragon® 8 Elite Mobile 0.468 ms 0 - 23 MB NPU
XLSR ONNX float Snapdragon® 8 Elite Gen 5 Mobile 0.406 ms 0 - 19 MB NPU
XLSR ONNX w8a8 Snapdragon® X2 Elite 0.281 ms 3 - 3 MB NPU
XLSR ONNX w8a8 Snapdragon® X Elite 0.647 ms 3 - 3 MB NPU
XLSR ONNX w8a8 Snapdragon® 8 Gen 3 Mobile 0.428 ms 0 - 33 MB NPU
XLSR ONNX w8a8 Snapdragon® 8 Gen 1 Mobile 0.722 ms 1 - 38 MB NPU
XLSR ONNX w8a8 Qualcomm® Dragonwing™ QCS6490 3.312 ms 2 - 4 MB NPU
XLSR ONNX w8a8 Qualcomm® Dragonwing™ IQ-8275 0.711 ms 0 - 3 MB NPU
XLSR ONNX w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.646 ms 0 - 21 MB NPU
XLSR ONNX w8a8 Qualcomm® QCS8450 0.722 ms 1 - 38 MB NPU
XLSR ONNX w8a8 Qualcomm® Dragonwing™ IQ-9075 0.794 ms 0 - 3 MB NPU
XLSR ONNX w8a8 Qualcomm® Dragonwing™ IQ-X7181 0.647 ms 3 - 3 MB NPU
XLSR ONNX w8a8 Qualcomm® Dragonwing™ Q-6690 3.072 ms 0 - 137 MB NPU
XLSR ONNX w8a8 Qualcomm® Dragonwing™ Q-7790 0.659 ms 0 - 22 MB NPU
XLSR ONNX w8a8 Qualcomm® Dragonwing™ Q-8750 0.308 ms 0 - 27 MB NPU
XLSR ONNX w8a8 Snapdragon® 8 Elite Mobile 0.308 ms 0 - 27 MB NPU
XLSR ONNX w8a8 Snapdragon® 8 Elite Gen 5 Mobile 0.277 ms 0 - 24 MB NPU
XLSR ONNX w8a8 Snapdragon® 7 Gen 4 Mobile 0.659 ms 0 - 22 MB NPU
XLSR QNN_DLC float Snapdragon® X2 Elite 0.567 ms 0 - 0 MB NPU
XLSR QNN_DLC float Snapdragon® X Elite 0.921 ms 0 - 0 MB NPU
XLSR QNN_DLC float Snapdragon® 8 Gen 3 Mobile 0.463 ms 0 - 29 MB NPU
XLSR QNN_DLC float Snapdragon® 8 Gen 1 Mobile 1.088 ms 0 - 35 MB NPU
XLSR QNN_DLC float Qualcomm® Dragonwing™ IQ-8275 0.932 ms 0 - 6 MB NPU
XLSR QNN_DLC float Qualcomm® Dragonwing™ IQ-8275 2.158 ms 0 - 21 MB NPU
XLSR QNN_DLC float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.786 ms 0 - 24 MB NPU
XLSR QNN_DLC float Qualcomm® SA8775P 1.149 ms 0 - 22 MB NPU
XLSR QNN_DLC float Qualcomm® SA8650P 1.149 ms 0 - 22 MB NPU
XLSR QNN_DLC float Qualcomm® SA8255P 1.149 ms 0 - 22 MB NPU
XLSR QNN_DLC float Qualcomm® QCS8450 1.088 ms 0 - 35 MB NPU
XLSR QNN_DLC float Qualcomm® Dragonwing™ IQ-9075 1.049 ms 0 - 5 MB NPU
XLSR QNN_DLC float Qualcomm® Dragonwing™ IQ-X7181 0.921 ms 0 - 0 MB NPU
XLSR QNN_DLC float Qualcomm® Dragonwing™ Q-8750 0.357 ms 0 - 26 MB NPU
XLSR QNN_DLC float Qualcomm® SA7255P 2.158 ms 0 - 21 MB NPU
XLSR QNN_DLC float Qualcomm® SA8295P 1.424 ms 0 - 18 MB NPU
XLSR QNN_DLC float Snapdragon® 8 Elite Mobile 0.357 ms 0 - 26 MB NPU
XLSR QNN_DLC float Snapdragon® 8 Elite Gen 5 Mobile 0.335 ms 0 - 22 MB NPU
XLSR QNN_DLC w8a8 Snapdragon® X2 Elite 0.268 ms 0 - 0 MB NPU
XLSR QNN_DLC w8a8 Snapdragon® X Elite 0.508 ms 0 - 0 MB NPU
XLSR QNN_DLC w8a8 Snapdragon® 8 Gen 3 Mobile 0.248 ms 0 - 30 MB NPU
XLSR QNN_DLC w8a8 Snapdragon® 8 Gen 1 Mobile 0.468 ms 0 - 35 MB NPU
XLSR QNN_DLC w8a8 Qualcomm® Dragonwing™ QCS6490 1.429 ms 0 - 2 MB NPU
XLSR QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-8275 0.448 ms 0 - 3 MB NPU
XLSR QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-8275 0.919 ms 0 - 20 MB NPU
XLSR QNN_DLC w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.386 ms 0 - 13 MB NPU
XLSR QNN_DLC w8a8 Qualcomm® SA8775P 0.577 ms 0 - 23 MB NPU
XLSR QNN_DLC w8a8 Qualcomm® SA8650P 0.577 ms 0 - 23 MB NPU
XLSR QNN_DLC w8a8 Qualcomm® SA8255P 0.577 ms 0 - 23 MB NPU
XLSR QNN_DLC w8a8 Qualcomm® QCS8450 0.468 ms 0 - 35 MB NPU
XLSR QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-9075 0.511 ms 2 - 4 MB NPU
XLSR QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-X7181 0.508 ms 0 - 0 MB NPU
XLSR QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-6690 1.603 ms 0 - 19 MB NPU
XLSR QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-7790 0.406 ms 0 - 20 MB NPU
XLSR QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-8750 0.214 ms 0 - 26 MB NPU
XLSR QNN_DLC w8a8 Qualcomm® SA7255P 0.919 ms 0 - 20 MB NPU
XLSR QNN_DLC w8a8 Qualcomm® SA8295P 0.795 ms 0 - 18 MB NPU
XLSR QNN_DLC w8a8 Snapdragon® 8 Elite Mobile 0.214 ms 0 - 26 MB NPU
XLSR QNN_DLC w8a8 Snapdragon® 8 Elite Gen 5 Mobile 0.182 ms 0 - 23 MB NPU
XLSR QNN_DLC w8a8 Snapdragon® 7 Gen 4 Mobile 0.406 ms 0 - 20 MB NPU
XLSR TFLITE float Snapdragon® 8 Gen 3 Mobile 1.402 ms 0 - 31 MB NPU
XLSR TFLITE float Snapdragon® 8 Gen 1 Mobile 2.497 ms 0 - 36 MB NPU
XLSR TFLITE float Qualcomm® Dragonwing™ IQ-8275 2.19 ms 3 - 9 MB NPU
XLSR TFLITE float Qualcomm® Dragonwing™ IQ-8275 4.643 ms 3 - 25 MB NPU
XLSR TFLITE float Qualcomm® Dragonwing™ QCS8550 (Proxy) 2.208 ms 0 - 60 MB NPU
XLSR TFLITE float Qualcomm® SA8775P 2.664 ms 0 - 23 MB NPU
XLSR TFLITE float Qualcomm® SA8650P 2.664 ms 0 - 23 MB NPU
XLSR TFLITE float Qualcomm® SA8255P 2.664 ms 0 - 23 MB NPU
XLSR TFLITE float Qualcomm® QCS8450 2.497 ms 0 - 36 MB NPU
XLSR TFLITE float Qualcomm® Dragonwing™ IQ-9075 2.499 ms 1 - 6 MB NPU
XLSR TFLITE float Qualcomm® Dragonwing™ Q-8750 0.964 ms 0 - 21 MB NPU
XLSR TFLITE float Qualcomm® SA7255P 4.643 ms 3 - 25 MB NPU
XLSR TFLITE float Qualcomm® SA8295P 3.105 ms 0 - 18 MB NPU
XLSR TFLITE float Snapdragon® 8 Elite Mobile 0.964 ms 0 - 21 MB NPU
XLSR TFLITE float Snapdragon® 8 Elite Gen 5 Mobile 0.795 ms 0 - 24 MB NPU
XLSR TFLITE w8a8 Snapdragon® 8 Gen 3 Mobile 0.264 ms 0 - 28 MB NPU
XLSR TFLITE w8a8 Snapdragon® 8 Gen 1 Mobile 0.478 ms 0 - 35 MB NPU
XLSR TFLITE w8a8 Qualcomm® Dragonwing™ QCS6490 1.158 ms 0 - 3 MB NPU
XLSR TFLITE w8a8 Qualcomm® Dragonwing™ IQ-8275 0.428 ms 0 - 3 MB NPU
XLSR TFLITE w8a8 Qualcomm® Dragonwing™ IQ-8275 0.952 ms 0 - 21 MB NPU
XLSR TFLITE w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.403 ms 0 - 27 MB NPU
XLSR TFLITE w8a8 Qualcomm® SA8775P 0.597 ms 0 - 23 MB NPU
XLSR TFLITE w8a8 Qualcomm® SA8650P 0.597 ms 0 - 23 MB NPU
XLSR TFLITE w8a8 Qualcomm® SA8255P 0.597 ms 0 - 23 MB NPU
XLSR TFLITE w8a8 Qualcomm® QCS8450 0.478 ms 0 - 35 MB NPU
XLSR TFLITE w8a8 Qualcomm® Dragonwing™ IQ-9075 0.525 ms 0 - 3 MB NPU
XLSR TFLITE w8a8 Qualcomm® Dragonwing™ Q-6690 1.625 ms 0 - 19 MB NPU
XLSR TFLITE w8a8 Qualcomm® Dragonwing™ Q-7790 0.42 ms 0 - 19 MB NPU
XLSR TFLITE w8a8 Qualcomm® Dragonwing™ Q-8750 0.215 ms 0 - 21 MB NPU
XLSR TFLITE w8a8 Qualcomm® SA7255P 0.952 ms 0 - 21 MB NPU
XLSR TFLITE w8a8 Qualcomm® SA8295P 0.797 ms 0 - 18 MB NPU
XLSR TFLITE w8a8 Snapdragon® 8 Elite Mobile 0.215 ms 0 - 21 MB NPU
XLSR TFLITE w8a8 Snapdragon® 8 Elite Gen 5 Mobile 0.182 ms 0 - 22 MB NPU
XLSR TFLITE w8a8 Snapdragon® 7 Gen 4 Mobile 0.42 ms 0 - 19 MB NPU

License

  • The license for the original implementation of XLSR can be found here.

References

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Paper for qualcomm/XLSR