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EasyOCR

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EasyOCR: Optimized for Mobile Deployment

Ready-to-use OCR with 80+ supported languages and all popular writing scripts

EasyOCR is a machine learning model that can recognize text in images. It supports 80+ supported languages and all popular writing scripts.

This model is an implementation of EasyOCR found here.

This repository provides scripts to run EasyOCR on Qualcomm® devices. More details on model performance across various devices, can be found here.

Model Details

  • Model Type: Model_use_case.image_to_text
  • Model Stats:
    • Model checkpoint: easyocr-small-stage1
    • Input resolution: 608x800
    • Number of parameters (EasyOCRDetector): 20.8M
    • Model size (EasyOCRDetector) (float): 79.2 MB
    • Number of parameters (EasyOCRRecognizer): 3.84M
    • Model size (EasyOCRRecognizer) (float): 14.7 MB
Model Precision Device Chipset Target Runtime Inference Time (ms) Peak Memory Range (MB) Primary Compute Unit Target Model
EasyOCRDetector float QCS8275 (Proxy) Qualcomm® QCS8275 (Proxy) TFLITE 268.568 ms 1 - 149 MB NPU EasyOCR.tflite
EasyOCRDetector float QCS8275 (Proxy) Qualcomm® QCS8275 (Proxy) QNN_DLC 271.624 ms 5 - 143 MB NPU EasyOCR.dlc
EasyOCRDetector float QCS8450 (Proxy) Qualcomm® QCS8450 (Proxy) TFLITE 76.961 ms 0 - 228 MB NPU EasyOCR.tflite
EasyOCRDetector float QCS8450 (Proxy) Qualcomm® QCS8450 (Proxy) QNN_DLC 80.046 ms 6 - 240 MB NPU EasyOCR.dlc
EasyOCRDetector float QCS8550 (Proxy) Qualcomm® QCS8550 (Proxy) TFLITE 36.884 ms 1 - 4 MB NPU EasyOCR.tflite
EasyOCRDetector float QCS8550 (Proxy) Qualcomm® QCS8550 (Proxy) QNN_DLC 39.479 ms 6 - 8 MB NPU EasyOCR.dlc
EasyOCRDetector float QCS8550 (Proxy) Qualcomm® QCS8550 (Proxy) ONNX 37.137 ms 0 - 45 MB NPU EasyOCR.onnx.zip
EasyOCRDetector float QCS9075 (Proxy) Qualcomm® QCS9075 (Proxy) TFLITE 67.922 ms 1 - 149 MB NPU EasyOCR.tflite
EasyOCRDetector float QCS9075 (Proxy) Qualcomm® QCS9075 (Proxy) QNN_DLC 324.119 ms 1 - 140 MB NPU EasyOCR.dlc
EasyOCRDetector float SA7255P ADP Qualcomm® SA7255P TFLITE 268.568 ms 1 - 149 MB NPU EasyOCR.tflite
EasyOCRDetector float SA7255P ADP Qualcomm® SA7255P QNN_DLC 271.624 ms 5 - 143 MB NPU EasyOCR.dlc
EasyOCRDetector float SA8255 (Proxy) Qualcomm® SA8255P (Proxy) TFLITE 36.724 ms 1 - 4 MB NPU EasyOCR.tflite
EasyOCRDetector float SA8255 (Proxy) Qualcomm® SA8255P (Proxy) QNN_DLC 39.333 ms 6 - 8 MB NPU EasyOCR.dlc
EasyOCRDetector float SA8295P ADP Qualcomm® SA8295P TFLITE 74.923 ms 1 - 156 MB NPU EasyOCR.tflite
EasyOCRDetector float SA8295P ADP Qualcomm® SA8295P QNN_DLC 77.451 ms 0 - 157 MB NPU EasyOCR.dlc
EasyOCRDetector float SA8650 (Proxy) Qualcomm® SA8650P (Proxy) TFLITE 37.318 ms 1 - 3 MB NPU EasyOCR.tflite
EasyOCRDetector float SA8650 (Proxy) Qualcomm® SA8650P (Proxy) QNN_DLC 39.471 ms 6 - 8 MB NPU EasyOCR.dlc
EasyOCRDetector float SA8775P ADP Qualcomm® SA8775P TFLITE 67.922 ms 1 - 149 MB NPU EasyOCR.tflite
EasyOCRDetector float SA8775P ADP Qualcomm® SA8775P QNN_DLC 324.119 ms 1 - 140 MB NPU EasyOCR.dlc
EasyOCRDetector float Samsung Galaxy S24 Snapdragon® 8 Gen 3 Mobile TFLITE 26.908 ms 0 - 225 MB NPU EasyOCR.tflite
EasyOCRDetector float Samsung Galaxy S24 Snapdragon® 8 Gen 3 Mobile QNN_DLC 28.022 ms 6 - 221 MB NPU EasyOCR.dlc
EasyOCRDetector float Samsung Galaxy S24 Snapdragon® 8 Gen 3 Mobile ONNX 27.23 ms 7 - 194 MB NPU EasyOCR.onnx.zip
EasyOCRDetector float Samsung Galaxy S25 Snapdragon® 8 Elite For Galaxy Mobile TFLITE 21.616 ms 1 - 152 MB NPU EasyOCR.tflite
EasyOCRDetector float Samsung Galaxy S25 Snapdragon® 8 Elite For Galaxy Mobile QNN_DLC 22.706 ms 6 - 143 MB NPU EasyOCR.dlc
EasyOCRDetector float Samsung Galaxy S25 Snapdragon® 8 Elite For Galaxy Mobile ONNX 21.874 ms 3 - 117 MB NPU EasyOCR.onnx.zip
EasyOCRDetector float Snapdragon 8 Elite Gen 5 QRD Snapdragon® 8 Elite Gen5 Mobile TFLITE 17.112 ms 1 - 152 MB NPU EasyOCR.tflite
EasyOCRDetector float Snapdragon 8 Elite Gen 5 QRD Snapdragon® 8 Elite Gen5 Mobile QNN_DLC 19.421 ms 6 - 150 MB NPU EasyOCR.dlc
EasyOCRDetector float Snapdragon 8 Elite Gen 5 QRD Snapdragon® 8 Elite Gen5 Mobile ONNX 16.504 ms 7 - 126 MB NPU EasyOCR.onnx.zip
EasyOCRDetector float Snapdragon X Elite CRD Snapdragon® X Elite QNN_DLC 40.807 ms 6 - 6 MB NPU EasyOCR.dlc
EasyOCRDetector float Snapdragon X Elite CRD Snapdragon® X Elite ONNX 38.421 ms 35 - 35 MB NPU EasyOCR.onnx.zip
EasyOCRRecognizer float QCS8275 (Proxy) Qualcomm® QCS8275 (Proxy) TFLITE 481.451 ms 8 - 17 MB CPU EasyOCR.tflite
EasyOCRRecognizer float QCS8275 (Proxy) Qualcomm® QCS8275 (Proxy) QNN_DLC 63.957 ms 0 - 739 MB NPU EasyOCR.dlc
EasyOCRRecognizer float QCS8450 (Proxy) Qualcomm® QCS8450 (Proxy) TFLITE 124.592 ms 9 - 31 MB CPU EasyOCR.tflite
EasyOCRRecognizer float QCS8450 (Proxy) Qualcomm® QCS8450 (Proxy) QNN_DLC 38.136 ms 0 - 434 MB NPU EasyOCR.dlc
EasyOCRRecognizer float QCS8550 (Proxy) Qualcomm® QCS8550 (Proxy) TFLITE 98.988 ms 8 - 11 MB CPU EasyOCR.tflite
EasyOCRRecognizer float QCS8550 (Proxy) Qualcomm® QCS8550 (Proxy) QNN_DLC 25.01 ms 0 - 3 MB NPU EasyOCR.dlc
EasyOCRRecognizer float QCS8550 (Proxy) Qualcomm® QCS8550 (Proxy) ONNX 35.1 ms 0 - 19 MB NPU EasyOCR.onnx.zip
EasyOCRRecognizer float QCS9075 (Proxy) Qualcomm® QCS9075 (Proxy) TFLITE 379.045 ms 8 - 18 MB CPU EasyOCR.tflite
EasyOCRRecognizer float QCS9075 (Proxy) Qualcomm® QCS9075 (Proxy) QNN_DLC 29.013 ms 0 - 739 MB NPU EasyOCR.dlc
EasyOCRRecognizer float SA7255P ADP Qualcomm® SA7255P TFLITE 481.451 ms 8 - 17 MB CPU EasyOCR.tflite
EasyOCRRecognizer float SA7255P ADP Qualcomm® SA7255P QNN_DLC 63.957 ms 0 - 739 MB NPU EasyOCR.dlc
EasyOCRRecognizer float SA8255 (Proxy) Qualcomm® SA8255P (Proxy) TFLITE 99.248 ms 8 - 11 MB CPU EasyOCR.tflite
EasyOCRRecognizer float SA8255 (Proxy) Qualcomm® SA8255P (Proxy) QNN_DLC 25.118 ms 0 - 3 MB NPU EasyOCR.dlc
EasyOCRRecognizer float SA8295P ADP Qualcomm® SA8295P TFLITE 224.461 ms 7 - 24 MB CPU EasyOCR.tflite
EasyOCRRecognizer float SA8295P ADP Qualcomm® SA8295P QNN_DLC 40.877 ms 0 - 385 MB NPU EasyOCR.dlc
EasyOCRRecognizer float SA8650 (Proxy) Qualcomm® SA8650P (Proxy) TFLITE 105.965 ms 7 - 10 MB CPU EasyOCR.tflite
EasyOCRRecognizer float SA8650 (Proxy) Qualcomm® SA8650P (Proxy) QNN_DLC 24.739 ms 0 - 3 MB NPU EasyOCR.dlc
EasyOCRRecognizer float SA8775P ADP Qualcomm® SA8775P TFLITE 379.045 ms 8 - 18 MB CPU EasyOCR.tflite
EasyOCRRecognizer float SA8775P ADP Qualcomm® SA8775P QNN_DLC 29.013 ms 0 - 739 MB NPU EasyOCR.dlc
EasyOCRRecognizer float Samsung Galaxy S24 Snapdragon® 8 Gen 3 Mobile TFLITE 95.776 ms 9 - 29 MB CPU EasyOCR.tflite
EasyOCRRecognizer float Samsung Galaxy S24 Snapdragon® 8 Gen 3 Mobile QNN_DLC 18.798 ms 0 - 871 MB NPU EasyOCR.dlc
EasyOCRRecognizer float Samsung Galaxy S24 Snapdragon® 8 Gen 3 Mobile ONNX 26.128 ms 1 - 516 MB NPU EasyOCR.onnx.zip
EasyOCRRecognizer float Samsung Galaxy S25 Snapdragon® 8 Elite For Galaxy Mobile TFLITE 118.983 ms 10 - 26 MB CPU EasyOCR.tflite
EasyOCRRecognizer float Samsung Galaxy S25 Snapdragon® 8 Elite For Galaxy Mobile QNN_DLC 16.278 ms 0 - 742 MB NPU EasyOCR.dlc
EasyOCRRecognizer float Samsung Galaxy S25 Snapdragon® 8 Elite For Galaxy Mobile ONNX 21.306 ms 1 - 451 MB NPU EasyOCR.onnx.zip
EasyOCRRecognizer float Snapdragon 8 Elite Gen 5 QRD Snapdragon® 8 Elite Gen5 Mobile TFLITE 69.568 ms 17 - 29 MB CPU EasyOCR.tflite
EasyOCRRecognizer float Snapdragon 8 Elite Gen 5 QRD Snapdragon® 8 Elite Gen5 Mobile QNN_DLC 17.179 ms 0 - 802 MB NPU EasyOCR.dlc
EasyOCRRecognizer float Snapdragon 8 Elite Gen 5 QRD Snapdragon® 8 Elite Gen5 Mobile ONNX 19.862 ms 0 - 478 MB NPU EasyOCR.onnx.zip
EasyOCRRecognizer float Snapdragon X Elite CRD Snapdragon® X Elite QNN_DLC 24.76 ms 0 - 0 MB NPU EasyOCR.dlc
EasyOCRRecognizer float Snapdragon X Elite CRD Snapdragon® X Elite ONNX 35.96 ms 12 - 12 MB NPU EasyOCR.onnx.zip
EasyOCRDetector w8a8 Dragonwing Q-6690 MTP Qualcomm® Qcm6690 TFLITE 240.483 ms 0 - 190 MB NPU EasyOCR.tflite
EasyOCRDetector w8a8 Dragonwing RB3 Gen 2 Vision Kit Qualcomm® QCS6490 TFLITE 47.487 ms 0 - 24 MB NPU EasyOCR.tflite
EasyOCRDetector w8a8 QCS8275 (Proxy) Qualcomm® QCS8275 (Proxy) TFLITE 36.011 ms 0 - 136 MB NPU EasyOCR.tflite
EasyOCRDetector w8a8 QCS8450 (Proxy) Qualcomm® QCS8450 (Proxy) TFLITE 14.851 ms 0 - 193 MB NPU EasyOCR.tflite
EasyOCRDetector w8a8 QCS8550 (Proxy) Qualcomm® QCS8550 (Proxy) TFLITE 9.663 ms 0 - 2 MB NPU EasyOCR.tflite
EasyOCRDetector w8a8 QCS9075 (Proxy) Qualcomm® QCS9075 (Proxy) TFLITE 10.193 ms 0 - 137 MB NPU EasyOCR.tflite
EasyOCRDetector w8a8 SA7255P ADP Qualcomm® SA7255P TFLITE 36.011 ms 0 - 136 MB NPU EasyOCR.tflite
EasyOCRDetector w8a8 SA8255 (Proxy) Qualcomm® SA8255P (Proxy) TFLITE 9.675 ms 2 - 4 MB NPU EasyOCR.tflite
EasyOCRDetector w8a8 SA8295P ADP Qualcomm® SA8295P TFLITE 19.18 ms 0 - 144 MB NPU EasyOCR.tflite
EasyOCRDetector w8a8 SA8650 (Proxy) Qualcomm® SA8650P (Proxy) TFLITE 9.669 ms 0 - 3 MB NPU EasyOCR.tflite
EasyOCRDetector w8a8 SA8775P ADP Qualcomm® SA8775P TFLITE 10.193 ms 0 - 137 MB NPU EasyOCR.tflite
EasyOCRDetector w8a8 Samsung Galaxy S24 Snapdragon® 8 Gen 3 Mobile TFLITE 7.179 ms 0 - 194 MB NPU EasyOCR.tflite
EasyOCRDetector w8a8 Samsung Galaxy S25 Snapdragon® 8 Elite For Galaxy Mobile TFLITE 5.748 ms 0 - 137 MB NPU EasyOCR.tflite
EasyOCRDetector w8a8 Snapdragon 7 Gen 4 QRD Snapdragon® 7 Gen 4 Mobile TFLITE 18.556 ms 0 - 158 MB NPU EasyOCR.tflite
EasyOCRDetector w8a8 Snapdragon 8 Elite Gen 5 QRD Snapdragon® 8 Elite Gen5 Mobile TFLITE 4.279 ms 0 - 138 MB NPU EasyOCR.tflite
EasyOCRRecognizer w8a8 Dragonwing Q-6690 MTP Qualcomm® Qcm6690 TFLITE 210.388 ms 10 - 24 MB CPU EasyOCR.tflite
EasyOCRRecognizer w8a8 Dragonwing RB3 Gen 2 Vision Kit Qualcomm® QCS6490 TFLITE 226.879 ms 4 - 25 MB CPU EasyOCR.tflite
EasyOCRRecognizer w8a8 QCS8275 (Proxy) Qualcomm® QCS8275 (Proxy) TFLITE 439.764 ms 8 - 17 MB CPU EasyOCR.tflite
EasyOCRRecognizer w8a8 QCS8450 (Proxy) Qualcomm® QCS8450 (Proxy) TFLITE 86.814 ms 7 - 29 MB CPU EasyOCR.tflite
EasyOCRRecognizer w8a8 QCS8550 (Proxy) Qualcomm® QCS8550 (Proxy) TFLITE 73.994 ms 6 - 9 MB CPU EasyOCR.tflite
EasyOCRRecognizer w8a8 QCS9075 (Proxy) Qualcomm® QCS9075 (Proxy) TFLITE 337.174 ms 9 - 19 MB CPU EasyOCR.tflite
EasyOCRRecognizer w8a8 SA7255P ADP Qualcomm® SA7255P TFLITE 439.764 ms 8 - 17 MB CPU EasyOCR.tflite
EasyOCRRecognizer w8a8 SA8255 (Proxy) Qualcomm® SA8255P (Proxy) TFLITE 75.985 ms 6 - 16 MB CPU EasyOCR.tflite
EasyOCRRecognizer w8a8 SA8295P ADP Qualcomm® SA8295P TFLITE 189.089 ms 10 - 27 MB CPU EasyOCR.tflite
EasyOCRRecognizer w8a8 SA8650 (Proxy) Qualcomm® SA8650P (Proxy) TFLITE 73.048 ms 6 - 9 MB CPU EasyOCR.tflite
EasyOCRRecognizer w8a8 SA8775P ADP Qualcomm® SA8775P TFLITE 337.174 ms 9 - 19 MB CPU EasyOCR.tflite
EasyOCRRecognizer w8a8 Samsung Galaxy S24 Snapdragon® 8 Gen 3 Mobile TFLITE 67.923 ms 7 - 27 MB CPU EasyOCR.tflite
EasyOCRRecognizer w8a8 Samsung Galaxy S25 Snapdragon® 8 Elite For Galaxy Mobile TFLITE 93.259 ms 6 - 21 MB CPU EasyOCR.tflite
EasyOCRRecognizer w8a8 Snapdragon 7 Gen 4 QRD Snapdragon® 7 Gen 4 Mobile TFLITE 124.982 ms 14 - 30 MB CPU EasyOCR.tflite
EasyOCRRecognizer w8a8 Snapdragon 8 Elite Gen 5 QRD Snapdragon® 8 Elite Gen5 Mobile TFLITE 53.799 ms 15 - 27 MB CPU EasyOCR.tflite

Installation

Install the package via pip:

# NOTE: 3.10 <= PYTHON_VERSION < 3.14 is supported.
pip install "qai-hub-models[easyocr]"

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

Sign-in to Qualcomm® AI Hub Workbench 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.

qai-hub configure --api_token API_TOKEN

Navigate to 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.

python -m qai_hub_models.models.easyocr.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.easyocr.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.
python -m qai_hub_models.models.easyocr.export

How does this work?

This export script leverages Qualcomm® AI Hub 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.

import torch

import qai_hub as hub
from qai_hub_models.models.easyocr 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.

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.

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 Workbench. Sign up for access.

Deploying compiled model to Android

The models can be deployed using multiple runtimes:

  • TensorFlow Lite (.tflite export): This tutorial provides a guide to deploy the .tflite model in an Android application.

  • QNN (.so export ): This sample app provides instructions on how to use the .so shared library in an Android application.

View on Qualcomm® AI Hub

Get more details on EasyOCR's performance across various devices here. Explore all available models on Qualcomm® AI Hub

License

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

References

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