Performing OCR on an Image Using the .NET SDK

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Performing OCR on an Image Using the .NET SDK

In this hands-on lab, you will use Visual Studio and C# to access an already-created Azure Cognitive Service resource and use it to perform optical character recognition of characters embedded in an image. All the code is already written. You simply need to configure the service endpoint and key, then run the code to perform the analysis.

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Lab Info

Level

Intermediate

Last updated

Nov 25, 2025

Duration

30m

Challenge

Locate and retrieve the necessary endpoint and subscription key from an Azure AI Vision resource.

You will locate and copy the endpoint and subscription key from your Azure AI Vision resource in the Azure Portal.
Challenge

Use RDP to connect to the Visual Studio virtual machine

You will connect to the provided VM running Visual Studio over Remote Desktop (RDP) using the provided credentials.
Challenge

Open and configure the provided Visual Studio project

You will open the provided Visual Studio project by browsing to its folder and loading the solution in Visual Studio.
Challenge

Programmatically invoke the Vision client and call the OCR method.

You will understand the provided C# code to instantiate the Vision client and call the OCR method to extract and display text from a local image. This will include supplying your unique endpoint and subscription key from the previous step.

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