--- library_name: pytorch license: other tags: - android pipeline_tag: image-to-text --- ![](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/easyocr/web-assets/model_demo.png) # 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](https://github.com/JaidedAI/EasyOCR). This repository provides scripts to run EasyOCR on Qualcomm® devices. More details on model performance across various devices, can be found [here](https://aihub.qualcomm.com/models/easyocr). ### 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 | 272.521 ms | 1 - 38 MB | NPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRDetector | float | QCS8450 (Proxy) | Qualcomm® QCS8450 (Proxy) | TFLITE | 66.695 ms | 1 - 47 MB | NPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRDetector | float | QCS8450 (Proxy) | Qualcomm® QCS8450 (Proxy) | QNN_DLC | 80.417 ms | 6 - 56 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRDetector | float | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | TFLITE | 38.318 ms | 0 - 154 MB | NPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRDetector | float | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | QNN_DLC | 39.369 ms | 6 - 23 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRDetector | float | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | ONNX | 37.689 ms | 0 - 52 MB | NPU | [EasyOCR.onnx.zip](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.onnx.zip) | | EasyOCRDetector | float | QCS9075 (Proxy) | Qualcomm® QCS9075 (Proxy) | TFLITE | 70.007 ms | 13 - 49 MB | NPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRDetector | float | SA7255P ADP | Qualcomm® SA7255P | TFLITE | 272.521 ms | 1 - 38 MB | NPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRDetector | float | SA8255 (Proxy) | Qualcomm® SA8255P (Proxy) | TFLITE | 38.198 ms | 1 - 154 MB | NPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRDetector | float | SA8255 (Proxy) | Qualcomm® SA8255P (Proxy) | QNN_DLC | 39.829 ms | 6 - 20 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRDetector | float | SA8295P ADP | Qualcomm® SA8295P | TFLITE | 76.771 ms | 1 - 40 MB | NPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRDetector | float | SA8295P ADP | Qualcomm® SA8295P | QNN_DLC | 77.272 ms | 6 - 53 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRDetector | float | SA8650 (Proxy) | Qualcomm® SA8650P (Proxy) | TFLITE | 39.149 ms | 0 - 145 MB | NPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRDetector | float | SA8650 (Proxy) | Qualcomm® SA8650P (Proxy) | QNN_DLC | 39.436 ms | 6 - 22 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRDetector | float | SA8775P ADP | Qualcomm® SA8775P | TFLITE | 70.007 ms | 13 - 49 MB | NPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRDetector | float | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | TFLITE | 28.195 ms | 1 - 45 MB | NPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRDetector | float | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | QNN_DLC | 28.584 ms | 6 - 46 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRDetector | float | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | ONNX | 27.276 ms | 6 - 48 MB | NPU | [EasyOCR.onnx.zip](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.onnx.zip) | | EasyOCRDetector | float | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | TFLITE | 22.79 ms | 1 - 42 MB | NPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRDetector | float | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | QNN_DLC | 22.779 ms | 6 - 44 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRDetector | float | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | ONNX | 22.343 ms | 4 - 44 MB | NPU | [EasyOCR.onnx.zip](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.onnx.zip) | | EasyOCRDetector | float | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen5 Mobile | TFLITE | 17.02 ms | 1 - 42 MB | NPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRDetector | float | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen5 Mobile | ONNX | 17.664 ms | 7 - 49 MB | NPU | [EasyOCR.onnx.zip](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.onnx.zip) | | EasyOCRDetector | float | Snapdragon X Elite CRD | Snapdragon® X Elite | QNN_DLC | 40.778 ms | 34 - 34 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRDetector | float | Snapdragon X Elite CRD | Snapdragon® X Elite | ONNX | 38.495 ms | 35 - 35 MB | NPU | [EasyOCR.onnx.zip](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.onnx.zip) | | EasyOCRRecognizer | float | QCS8275 (Proxy) | Qualcomm® QCS8275 (Proxy) | TFLITE | 479.613 ms | 8 - 18 MB | CPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRRecognizer | float | QCS8450 (Proxy) | Qualcomm® QCS8450 (Proxy) | TFLITE | 113.782 ms | 9 - 30 MB | CPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRRecognizer | float | QCS8450 (Proxy) | Qualcomm® QCS8450 (Proxy) | QNN_DLC | 38.101 ms | 0 - 196 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRRecognizer | float | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | TFLITE | 104.991 ms | 8 - 11 MB | CPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRRecognizer | float | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | QNN_DLC | 24.676 ms | 0 - 103 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRRecognizer | float | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | ONNX | 35.392 ms | 0 - 86 MB | NPU | [EasyOCR.onnx.zip](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.onnx.zip) | | EasyOCRRecognizer | float | QCS9075 (Proxy) | Qualcomm® QCS9075 (Proxy) | TFLITE | 352.662 ms | 8 - 18 MB | CPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRRecognizer | float | SA7255P ADP | Qualcomm® SA7255P | TFLITE | 479.613 ms | 8 - 18 MB | CPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRRecognizer | float | SA8255 (Proxy) | Qualcomm® SA8255P (Proxy) | TFLITE | 109.667 ms | 7 - 10 MB | CPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRRecognizer | float | SA8255 (Proxy) | Qualcomm® SA8255P (Proxy) | QNN_DLC | 24.736 ms | 0 - 102 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRRecognizer | float | SA8295P ADP | Qualcomm® SA8295P | TFLITE | 208.124 ms | 8 - 26 MB | CPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRRecognizer | float | SA8295P ADP | Qualcomm® SA8295P | QNN_DLC | 40.581 ms | 0 - 194 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRRecognizer | float | SA8650 (Proxy) | Qualcomm® SA8650P (Proxy) | TFLITE | 102.007 ms | 6 - 9 MB | CPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRRecognizer | float | SA8650 (Proxy) | Qualcomm® SA8650P (Proxy) | QNN_DLC | 24.801 ms | 0 - 103 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRRecognizer | float | SA8775P ADP | Qualcomm® SA8775P | TFLITE | 352.662 ms | 8 - 18 MB | CPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRRecognizer | float | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | TFLITE | 93.664 ms | 9 - 29 MB | CPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRRecognizer | float | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | QNN_DLC | 18.627 ms | 0 - 464 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRRecognizer | float | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | ONNX | 26.499 ms | 0 - 273 MB | NPU | [EasyOCR.onnx.zip](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.onnx.zip) | | EasyOCRRecognizer | float | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | TFLITE | 111.258 ms | 11 - 23 MB | CPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRRecognizer | float | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | QNN_DLC | 16.059 ms | 0 - 473 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRRecognizer | float | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | ONNX | 21.397 ms | 0 - 279 MB | NPU | [EasyOCR.onnx.zip](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.onnx.zip) | | EasyOCRRecognizer | float | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen5 Mobile | TFLITE | 84.689 ms | 13 - 25 MB | CPU | [EasyOCR.tflite](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.tflite) | | EasyOCRRecognizer | float | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen5 Mobile | ONNX | 19.914 ms | 0 - 302 MB | NPU | [EasyOCR.onnx.zip](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.onnx.zip) | | EasyOCRRecognizer | float | Snapdragon X Elite CRD | Snapdragon® X Elite | QNN_DLC | 24.52 ms | 73 - 73 MB | NPU | [EasyOCR.dlc](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.dlc) | | EasyOCRRecognizer | float | Snapdragon X Elite CRD | Snapdragon® X Elite | ONNX | 35.965 ms | 12 - 12 MB | NPU | [EasyOCR.onnx.zip](https://huggingface.co/qualcomm/EasyOCR/blob/main/EasyOCR.onnx.zip) | ## Installation Install the package via pip: ```bash pip install "qai-hub-models[easyocr]" ``` ## 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.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. ```bash python -m qai_hub_models.models.easyocr.export ``` ## How does this work? This [export script](https://aihub.qualcomm.com/models/easyocr/qai_hub_models/models/EasyOCR/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.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. ```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). ## 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 EasyOCR's performance across various devices [here](https://aihub.qualcomm.com/models/easyocr). Explore all available models on [Qualcomm® AI Hub](https://aihub.qualcomm.com/) ## License * The license for the original implementation of EasyOCR can be found [here](https://github.com/JaidedAI/EasyOCR/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 * [Source Model Implementation](https://github.com/JaidedAI/EasyOCR) ## 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:ai-hub-support@qti.qualcomm.com).