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articles/ai-services/computer-vision/how-to/call-read-api.md

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[!INCLUDE [read-editions](../includes/read-editions.md)]
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## Input requirements
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The **Read** API call takes images and documents as its input. The images and documents must meet the following requirements:
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* Supported file formats are JPEG, PNG, BMP, PDF, and TIFF.
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* For PDF and TIFF files, up to 2,000 pages (only the first two pages for the free tier) are processed.
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* The file size of images must be less than 500 MB (4 MB for the free tier) with dimensions at least 50 x 50 pixels and at most 10,000 x 10,000 pixels. PDF files don't have a size limit.
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* The minimum height of the text to be extracted is 12 pixels for a 1024 x 768 image, which corresponds to about 8-point font text at 150 DPI.
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>[!NOTE]
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> You don't need to crop an image for text lines. Send the whole image to the Read API and it recognizes all texts.
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## Determine how to process the data (optional)
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articles/ai-services/computer-vision/includes/curl-quickstart.md

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- [cURL](https://curl.haxx.se/) installed.
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- <a href="https://portal.azure.com/#create/Microsoft.CognitiveServicesComputerVision" title="create a Vision resource" target="_blank">An Azure AI Vision resource</a>. You can use the free pricing tier (`F0`) to try the service, and upgrade later to a paid tier for production.
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- The key and endpoint from the resource you create to connect your application to the Azure AI Vision service.
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1. After your Azure Vision resource deploys, select **Go to resource**.
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1. In the left navigation menu, select **Keys and Endpoint**.
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1. Copy one of the keys and the **Endpoint** for use later in the quickstart.

articles/ai-services/computer-vision/includes/ocr-studio-quickstart.md

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- An Azure subscription - [Create one for free](https://azure.microsoft.com/free/cognitive-services/).
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- [An Azure AI Vision resource](https://portal.azure.com/#create/Microsoft.CognitiveServicesComputerVision). You can use the free pricing tier (`F0`) to try the service, and upgrade later to a paid tier for production.
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- Connect to [Vision Studio](https://portal.vision.cognitive.azure.com/).
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- You might need to sign in.
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- After you sign in, select **View all resources**. If necessary, select **Refresh**. Verify that your resource is available.
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articles/ai-services/computer-vision/includes/quickstarts-sdk/csharp-sdk.md

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- The [Visual Studio IDE](https://visualstudio.microsoft.com/vs/) or current version of [.NET Core](https://dotnet.microsoft.com/download/dotnet-core).
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- <a href="https://portal.azure.com/#create/Microsoft.CognitiveServicesComputerVision" title="create a Vision resource" target="_blank">An Azure AI Vision resource</a>. You can use the free pricing tier (`F0`) to try the service, and upgrade later to a paid tier for production.
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- The key and endpoint from the resource you create to connect your application to the Azure AI Vision service.
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1. After your Azure Vision resource deploys, select **Go to resource**.
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1. In the left navigation menu, select **Keys and Endpoint**.
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1. Copy one of the keys and the **Endpoint** for use later in the quickstart.

articles/ai-services/computer-vision/includes/quickstarts-sdk/node-sdk.md

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- The current version of [Node.js](https://nodejs.org/).
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- <a href="https://portal.azure.com/#create/Microsoft.CognitiveServicesComputerVision" title="create a Vision resource" target="_blank">An Azure AI Vision resource</a>. You can use the free pricing tier (`F0`) to try the service, and upgrade later to a paid tier for production.
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- The key and endpoint from the resource you create to connect your application to the Azure AI Vision service.
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1. After your Azure Vision resource deploys, select **Go to resource**.
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1. In the left navigation menu, select **Keys and Endpoint**.
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1. Copy one of the keys and the **Endpoint** for use later in the quickstart.

articles/ai-services/computer-vision/includes/quickstarts-sdk/python-sdk.md

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- Your Python installation should include [pip](https://pip.pypa.io/en/stable/). You can check whether you have pip installed, run `pip --version` on the command line. Get pip by installing the latest version of Python.
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- <a href="https://portal.azure.com/#create/Microsoft.CognitiveServicesComputerVision" title="create a Vision resource" target="_blank">An Azure AI Vision resource</a>. You can use the free pricing tier (`F0`) to try the service, and upgrade later to a paid tier for production.
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- The key and endpoint from the resource you create to connect your application to the Azure AI Vision service.
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1. After your Azure Vision resource deploys, select **Go to resource**.
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1. In the left navigation menu, select **Keys and Endpoint**.
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1. Copy one of the keys and the **Endpoint** for use later in the quickstart.

articles/ai-services/computer-vision/overview-ocr.md

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ms.service: azure-ai-vision
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ms.topic: overview
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ms.date: 06/26/2024
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ms.date: 10/16/2024
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ms.author: pafarley
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ms.custom: devx-track-csharp
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---
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For on-premises deployment, the [Read Docker container](./computer-vision-how-to-install-containers.md) enables you to deploy the Azure AI Vision v3.2 generally available OCR capabilities in your own local environment. Containers are great for specific security and data governance requirements.
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## Input requirements
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The **Read** API takes images and documents as its input. The images and documents must meet the following requirements:
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* Supported file formats are JPEG, PNG, BMP, PDF, and TIFF.
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* For PDF and TIFF files, up to 2,000 pages (only the first two pages for the free tier) are processed.
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* The file size of images must be less than 500 MB (4 MB for the free tier) with dimensions at least 50 x 50 pixels and at most 10,000 x 10,000 pixels. PDF files don't have a size limit.
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* The minimum height of the text to be extracted is 12 pixels for a 1024 x 768 image, which corresponds to about 8-point font text at 150 DPI.
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>[!NOTE]
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> You don't need to crop an image for text lines. Send the whole image to the Read API and it recognizes all texts.
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## OCR data privacy and security
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As with all of the Azure AI services, developers using the Azure AI Vision service should be aware of Microsoft's policies on customer data. See the [Azure AI services page](https://www.microsoft.com/trustcenter/cloudservices/cognitiveservices) on the Microsoft Trust Center to learn more.

articles/ai-services/computer-vision/quickstarts-sdk/client-library.md

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manager: nitinme
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ms.service: azure-ai-vision
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ms.topic: quickstart
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ms.date: 06/26/2024
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ms.date: 10/16/2024
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ms.author: pafarley
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ms.devlang: csharp
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# ms.devlang: csharp, golang, java, javascript, python

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