README.md

---
library_name: pytorch
license: other
tags:
- android
pipeline_tag: image-to-image

---

![](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/real_esrgan_x4plus/web-assets/model_demo.png)

# Real-ESRGAN-x4plus: Optimized for Mobile Deployment
## Upscale images and remove image noise


Real-ESRGAN is a machine learning model that upscales an image with minimal loss in quality. The implementation is a derivative of the Real-ESRGAN-x4plus architecture, a larger and more powerful version compared to the Real-ESRGAN-general-x4v3 architecture.

This model is an implementation of Real-ESRGAN-x4plus found [here](https://github.com/xinntao/Real-ESRGAN).


This repository provides scripts to run Real-ESRGAN-x4plus on Qualcomm® devices.
More details on model performance across various devices, can be found
[here](https://aihub.qualcomm.com/models/real_esrgan_x4plus).



### Model Details

- **Model Type:** Model_use_case.super_resolution
- **Model Stats:**
  - Model checkpoint: RealESRGAN_x4plus
  - Input resolution: 128x128
  - Number of parameters: 16.7M
  - Model size (float): 63.9 MB
  - Model size (w8a8): 16.7 MB

| Model | Precision | Device | Chipset | Target Runtime | Inference Time (ms) | Peak Memory Range (MB) | Primary Compute Unit | Target Model
|---|---|---|---|---|---|---|---|---|
| Real-ESRGAN-x4plus | float | QCS8275 (Proxy) | Qualcomm® QCS8275 (Proxy) | TFLITE | 454.901 ms | 0 - 190 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.tflite) |
| Real-ESRGAN-x4plus | float | QCS8275 (Proxy) | Qualcomm® QCS8275 (Proxy) | QNN_DLC | 448.882 ms | 0 - 143 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.dlc) |
| Real-ESRGAN-x4plus | float | QCS8450 (Proxy) | Qualcomm® QCS8450 (Proxy) | TFLITE | 143.893 ms | 3 - 160 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.tflite) |
| Real-ESRGAN-x4plus | float | QCS8450 (Proxy) | Qualcomm® QCS8450 (Proxy) | QNN_DLC | 114.996 ms | 0 - 170 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.dlc) |
| Real-ESRGAN-x4plus | float | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | TFLITE | 72.958 ms | 3 - 48 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.tflite) |
| Real-ESRGAN-x4plus | float | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | QNN_DLC | 70.37 ms | 0 - 44 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.dlc) |
| Real-ESRGAN-x4plus | float | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | ONNX | 69.886 ms | 6 - 51 MB | NPU | [Real-ESRGAN-x4plus.onnx.zip](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.onnx.zip) |
| Real-ESRGAN-x4plus | float | QCS9075 (Proxy) | Qualcomm® QCS9075 (Proxy) | TFLITE | 109.238 ms | 3 - 194 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.tflite) |
| Real-ESRGAN-x4plus | float | QCS9075 (Proxy) | Qualcomm® QCS9075 (Proxy) | QNN_DLC | 105.288 ms | 0 - 147 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.dlc) |
| Real-ESRGAN-x4plus | float | SA7255P ADP | Qualcomm® SA7255P | TFLITE | 454.901 ms | 0 - 190 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.tflite) |
| Real-ESRGAN-x4plus | float | SA7255P ADP | Qualcomm® SA7255P | QNN_DLC | 448.882 ms | 0 - 143 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.dlc) |
| Real-ESRGAN-x4plus | float | SA8255 (Proxy) | Qualcomm® SA8255P (Proxy) | TFLITE | 71.881 ms | 3 - 49 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.tflite) |
| Real-ESRGAN-x4plus | float | SA8255 (Proxy) | Qualcomm® SA8255P (Proxy) | QNN_DLC | 65.396 ms | 0 - 45 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.dlc) |
| Real-ESRGAN-x4plus | float | SA8295P ADP | Qualcomm® SA8295P | TFLITE | 113.967 ms | 3 - 158 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.tflite) |
| Real-ESRGAN-x4plus | float | SA8295P ADP | Qualcomm® SA8295P | QNN_DLC | 110.382 ms | 0 - 158 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.dlc) |
| Real-ESRGAN-x4plus | float | SA8650 (Proxy) | Qualcomm® SA8650P (Proxy) | TFLITE | 70.405 ms | 3 - 49 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.tflite) |
| Real-ESRGAN-x4plus | float | SA8650 (Proxy) | Qualcomm® SA8650P (Proxy) | QNN_DLC | 63.697 ms | 0 - 35 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.dlc) |
| Real-ESRGAN-x4plus | float | SA8775P ADP | Qualcomm® SA8775P | TFLITE | 109.238 ms | 3 - 194 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.tflite) |
| Real-ESRGAN-x4plus | float | SA8775P ADP | Qualcomm® SA8775P | QNN_DLC | 105.288 ms | 0 - 147 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.dlc) |
| Real-ESRGAN-x4plus | float | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | TFLITE | 52.043 ms | 0 - 198 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.tflite) |
| Real-ESRGAN-x4plus | float | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | QNN_DLC | 50.358 ms | 0 - 154 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.dlc) |
| Real-ESRGAN-x4plus | float | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | ONNX | 51.204 ms | 8 - 191 MB | NPU | [Real-ESRGAN-x4plus.onnx.zip](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.onnx.zip) |
| Real-ESRGAN-x4plus | float | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | TFLITE | 41.181 ms | 3 - 198 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.tflite) |
| Real-ESRGAN-x4plus | float | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | QNN_DLC | 38.981 ms | 0 - 139 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.dlc) |
| Real-ESRGAN-x4plus | float | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | ONNX | 39.939 ms | 8 - 154 MB | NPU | [Real-ESRGAN-x4plus.onnx.zip](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.onnx.zip) |
| Real-ESRGAN-x4plus | float | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen5 Mobile | TFLITE | 33.773 ms | 3 - 199 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.tflite) |
| Real-ESRGAN-x4plus | float | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen5 Mobile | QNN_DLC | 27.546 ms | 0 - 142 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.dlc) |
| Real-ESRGAN-x4plus | float | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen5 Mobile | ONNX | 29.888 ms | 6 - 154 MB | NPU | [Real-ESRGAN-x4plus.onnx.zip](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.onnx.zip) |
| Real-ESRGAN-x4plus | float | Snapdragon X Elite CRD | Snapdragon® X Elite | QNN_DLC | 64.985 ms | 121 - 121 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.dlc) |
| Real-ESRGAN-x4plus | float | Snapdragon X Elite CRD | Snapdragon® X Elite | ONNX | 65.641 ms | 37 - 37 MB | NPU | [Real-ESRGAN-x4plus.onnx.zip](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus.onnx.zip) |
| Real-ESRGAN-x4plus | w8a8 | QCS8275 (Proxy) | Qualcomm® QCS8275 (Proxy) | TFLITE | 73.781 ms | 1 - 176 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.tflite) |
| Real-ESRGAN-x4plus | w8a8 | QCS8275 (Proxy) | Qualcomm® QCS8275 (Proxy) | QNN_DLC | 66.556 ms | 0 - 196 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.dlc) |
| Real-ESRGAN-x4plus | w8a8 | QCS8450 (Proxy) | Qualcomm® QCS8450 (Proxy) | TFLITE | 36.692 ms | 1 - 176 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.tflite) |
| Real-ESRGAN-x4plus | w8a8 | QCS8450 (Proxy) | Qualcomm® QCS8450 (Proxy) | QNN_DLC | 40.874 ms | 0 - 202 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.dlc) |
| Real-ESRGAN-x4plus | w8a8 | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | TFLITE | 24.994 ms | 0 - 34 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.tflite) |
| Real-ESRGAN-x4plus | w8a8 | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | QNN_DLC | 23.357 ms | 0 - 48 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.dlc) |
| Real-ESRGAN-x4plus | w8a8 | QCS9075 (Proxy) | Qualcomm® QCS9075 (Proxy) | TFLITE | 23.57 ms | 1 - 175 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.tflite) |
| Real-ESRGAN-x4plus | w8a8 | QCS9075 (Proxy) | Qualcomm® QCS9075 (Proxy) | QNN_DLC | 21.273 ms | 0 - 194 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.dlc) |
| Real-ESRGAN-x4plus | w8a8 | RB3 Gen 2 (Proxy) | Qualcomm® QCS6490 (Proxy) | TFLITE | 115.528 ms | 1 - 171 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.tflite) |
| Real-ESRGAN-x4plus | w8a8 | RB5 (Proxy) | Qualcomm® QCS8250 (Proxy) | TFLITE | 1373.118 ms | 0 - 96 MB | GPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.tflite) |
| Real-ESRGAN-x4plus | w8a8 | SA7255P ADP | Qualcomm® SA7255P | TFLITE | 73.781 ms | 1 - 176 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.tflite) |
| Real-ESRGAN-x4plus | w8a8 | SA7255P ADP | Qualcomm® SA7255P | QNN_DLC | 66.556 ms | 0 - 196 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.dlc) |
| Real-ESRGAN-x4plus | w8a8 | SA8255 (Proxy) | Qualcomm® SA8255P (Proxy) | TFLITE | 23.093 ms | 0 - 39 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.tflite) |
| Real-ESRGAN-x4plus | w8a8 | SA8255 (Proxy) | Qualcomm® SA8255P (Proxy) | QNN_DLC | 23.347 ms | 0 - 58 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.dlc) |
| Real-ESRGAN-x4plus | w8a8 | SA8295P ADP | Qualcomm® SA8295P | TFLITE | 39.446 ms | 1 - 172 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.tflite) |
| Real-ESRGAN-x4plus | w8a8 | SA8295P ADP | Qualcomm® SA8295P | QNN_DLC | 34.932 ms | 0 - 199 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.dlc) |
| Real-ESRGAN-x4plus | w8a8 | SA8650 (Proxy) | Qualcomm® SA8650P (Proxy) | TFLITE | 24.767 ms | 0 - 47 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.tflite) |
| Real-ESRGAN-x4plus | w8a8 | SA8650 (Proxy) | Qualcomm® SA8650P (Proxy) | QNN_DLC | 23.349 ms | 0 - 52 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.dlc) |
| Real-ESRGAN-x4plus | w8a8 | SA8775P ADP | Qualcomm® SA8775P | TFLITE | 23.57 ms | 1 - 175 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.tflite) |
| Real-ESRGAN-x4plus | w8a8 | SA8775P ADP | Qualcomm® SA8775P | QNN_DLC | 21.273 ms | 0 - 194 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.dlc) |
| Real-ESRGAN-x4plus | w8a8 | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | TFLITE | 17.589 ms | 1 - 179 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.tflite) |
| Real-ESRGAN-x4plus | w8a8 | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | QNN_DLC | 16.054 ms | 0 - 192 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.dlc) |
| Real-ESRGAN-x4plus | w8a8 | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | TFLITE | 15.027 ms | 1 - 175 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.tflite) |
| Real-ESRGAN-x4plus | w8a8 | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | QNN_DLC | 11.972 ms | 0 - 177 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.dlc) |
| Real-ESRGAN-x4plus | w8a8 | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen5 Mobile | TFLITE | 11.63 ms | 1 - 176 MB | NPU | [Real-ESRGAN-x4plus.tflite](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.tflite) |
| Real-ESRGAN-x4plus | w8a8 | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen5 Mobile | QNN_DLC | 9.404 ms | 0 - 184 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.dlc) |
| Real-ESRGAN-x4plus | w8a8 | Snapdragon X Elite CRD | Snapdragon® X Elite | QNN_DLC | 24.398 ms | 108 - 108 MB | NPU | [Real-ESRGAN-x4plus.dlc](https://huggingface.co/qualcomm/Real-ESRGAN-x4plus/blob/main/Real-ESRGAN-x4plus_w8a8.dlc) |




## Installation


Install the package via pip:
```bash
# NOTE: 3.10 <= PYTHON_VERSION < 3.14 is supported.
pip install "qai-hub-models[real-esrgan-x4plus]"
```


## Configure Qualcomm® AI Hub to run this model on a cloud-hosted device

Sign-in to [Qualcomm® AI Hub](https://app.aihub.qualcomm.com/) with your
Qualcomm® ID. Once signed in navigate to `Account -> Settings -> API Token`.

With this API token, you can configure your client to run models on the cloud
hosted devices.
```bash
qai-hub configure --api_token API_TOKEN
```
Navigate to [docs](https://app.aihub.qualcomm.com/docs/) for more information.



## Demo off target

The package contains a simple end-to-end demo that downloads pre-trained
weights and runs this model on a sample input.

```bash
python -m qai_hub_models.models.real_esrgan_x4plus.demo
```

The above demo runs a reference implementation of pre-processing, model
inference, and post processing.

**NOTE**: If you want running in a Jupyter Notebook or Google Colab like
environment, please add the following to your cell (instead of the above).
```
%run -m qai_hub_models.models.real_esrgan_x4plus.demo
```


### Run model on a cloud-hosted device

In addition to the demo, you can also run the model on a cloud-hosted Qualcomm®
device. This script does the following:
* Performance check on-device on a cloud-hosted device
* Downloads compiled assets that can be deployed on-device for Android.
* Accuracy check between PyTorch and on-device outputs.

```bash
python -m qai_hub_models.models.real_esrgan_x4plus.export
```



## How does this work?

This [export script](https://aihub.qualcomm.com/models/real_esrgan_x4plus/qai_hub_models/models/Real-ESRGAN-x4plus/export.py)
leverages [Qualcomm® AI Hub](https://aihub.qualcomm.com/) to optimize, validate, and deploy this model
on-device. Lets go through each step below in detail:

Step 1: **Compile model for on-device deployment**

To compile a PyTorch model for on-device deployment, we first trace the model
in memory using the `jit.trace` and then call the `submit_compile_job` API.

```python
import torch

import qai_hub as hub
from qai_hub_models.models.real_esrgan_x4plus import Model

# Load the model
torch_model = Model.from_pretrained()

# Device
device = hub.Device("Samsung Galaxy S25")

# Trace model
input_shape = torch_model.get_input_spec()
sample_inputs = torch_model.sample_inputs()

pt_model = torch.jit.trace(torch_model, [torch.tensor(data[0]) for _, data in sample_inputs.items()])

# Compile model on a specific device
compile_job = hub.submit_compile_job(
    model=pt_model,
    device=device,
    input_specs=torch_model.get_input_spec(),
)

# Get target model to run on-device
target_model = compile_job.get_target_model()

```


Step 2: **Performance profiling on cloud-hosted device**

After compiling models from step 1. Models can be profiled model on-device using the
`target_model`. Note that this scripts runs the model on a device automatically
provisioned in the cloud.  Once the job is submitted, you can navigate to a
provided job URL to view a variety of on-device performance metrics.
```python
profile_job = hub.submit_profile_job(
    model=target_model,
    device=device,
)
        
```

Step 3: **Verify on-device accuracy**

To verify the accuracy of the model on-device, you can run on-device inference
on sample input data on the same cloud hosted device.
```python
input_data = torch_model.sample_inputs()
inference_job = hub.submit_inference_job(
    model=target_model,
    device=device,
    inputs=input_data,
)
    on_device_output = inference_job.download_output_data()

```
With the output of the model, you can compute like PSNR, relative errors or
spot check the output with expected output.

**Note**: This on-device profiling and inference requires access to Qualcomm®
AI Hub. [Sign up for access](https://myaccount.qualcomm.com/signup).



## Run demo on a cloud-hosted device

You can also run the demo on-device.

```bash
python -m qai_hub_models.models.real_esrgan_x4plus.demo --eval-mode on-device
```

**NOTE**: If you want running in a Jupyter Notebook or Google Colab like
environment, please add the following to your cell (instead of the above).
```
%run -m qai_hub_models.models.real_esrgan_x4plus.demo -- --eval-mode on-device
```


## Deploying compiled model to Android


The models can be deployed using multiple runtimes:
- TensorFlow Lite (`.tflite` export): [This
  tutorial](https://www.tensorflow.org/lite/android/quickstart) provides a
  guide to deploy the .tflite model in an Android application.


- QNN (`.so` export ): This [sample
  app](https://docs.qualcomm.com/bundle/publicresource/topics/80-63442-50/sample_app.html)
provides instructions on how to use the `.so` shared library  in an Android application.


## View on Qualcomm® AI Hub
Get more details on Real-ESRGAN-x4plus's performance across various devices [here](https://aihub.qualcomm.com/models/real_esrgan_x4plus).
Explore all available models on [Qualcomm® AI Hub](https://aihub.qualcomm.com/)


## License
* The license for the original implementation of Real-ESRGAN-x4plus can be found
  [here](https://github.com/xinntao/Real-ESRGAN/blob/master/LICENSE).
* The license for the compiled assets for on-device deployment can be found [here](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/Qualcomm+AI+Hub+Proprietary+License.pdf)



## References
* [Real-ESRGAN: Training Real-World Blind Super-Resolution with Pure Synthetic Data](https://arxiv.org/abs/2107.10833)
* [Source Model Implementation](https://github.com/xinntao/Real-ESRGAN)



## Community
* Join [our AI Hub Slack community](https://aihub.qualcomm.com/community/slack) to collaborate, post questions and learn more about on-device AI.
* For questions or feedback please [reach out to us](mailto:[email protected]).