Unable to use Custom Vision Model with latest library "Azure.AI.Vision.ImageAnalysis"

Hi Deepankar -

To use the Analyze method with a custom AI Vision Model in C#, you’ll need to ensure you’re passing the correct parameters, including the model name, feature, and options. Here’s a basic example of how you can achieve this:

Set up your client:

var client = new ComputerVisionClient(new ApiKeyServiceClientCredentials("<Your API Key>"))

{ Endpoint = "<Your Endpoint>"};

Define the parameters:

string imageUri = "<Your Image URI>";

string modelName = "<Your Custom Model Name>";

var features = new List<VisualFeatureTypes?> { VisualFeatureTypes.Objects };

var options = new ImageAnalysisOptions

{

ModelVersion = modelName

};

Call the Analyze method:

var analysisResult = await client.AnalyzeImageAsync(imageUri, features, options);

Extract the confidence score:

foreach (var obj in analysisResult.Objects)

{

Console.WriteLine($"Object: {obj.ObjectProperty}, Confidence: {obj.Confidence}");

}

In this example, replace "<Your API Key>", "<Your Endpoint>", "<Your Image URI>", and "<Your Custom Model Name>" with your actual values. The AnalyzeImageAsync method takes the image URI, a list of features to analyze, and options that include your custom model name.

I am getting error "The new Azure.AI.Vision.ImageAnalysis does not exist in current version for VisualFeatureType and similarly for the Image Analysis options.

I have asked the same question to copilot and it is telling that these classes have been removed from the recent package Azure.AI.Vision.ImageAnalysis. Can you please provide the correct method and syntax to be used in this latest package?

I see what you are saying. The classes and methods you mentioned, such as VisualFeatureType and ImageAnalysisOptions, have been removed or updated in the recent package. The other option is as follows:

To use the latest syntax for analyzing images with a custom AI Vision Model in C#, you can follow these updated steps. I am positive that this should work, please let me know the outcome.

Set up your client:

var client = new ImageAnalysisClient(new Uri("<Your Endpoint>"), new AzureKeyCredential("<Your API Key>"));

Define the parameters:

string imageUri = "<Your Image URI>";

string modelName = "<Your Custom Model Name>";

Call the Analyze method:

var analysisOptions = new ImageAnalysisOptions

{

ModelVersion = modelName,

Features = new List<ImageAnalysisFeature> { ImageAnalysisFeature.Objects }

};

var analysisResult = await client.AnalyzeImageAsync(new Uri(imageUri), analysisOptions);

Extract the confidence score:

foreach (var obj in analysisResult.Objects)

{

Console.WriteLine($"Object: {obj.Name}, Confidence: {obj.Confidence}");

}

In this example, replace <Your Endpoint>, <Your API Key>, <Your Image URI>, and <Your Custom Model Name> with your actual values. The AnalyzeImageAsync method now takes a URI and an ImageAnalysisOptions object that includes your custom model name and the features to analyze.

I hope this helps! Let me know if you have any further questions or need additional assistance.

Now I am getting ImageAnalysisFeature not found error.

I have tried using Visual Feature but again I am getting the error that ImageAnalysisOptions does not contain a definition of Features.

But I have the latest version installed. I am using .Net 9 and Version 1.0.0 of Azure.AI.Vision.ImageAnalysis

I have checked the decompiled version of ImageAnalysisOptions structure, it does not contain any definition related to Features in the latest version. See the ss below: