Azure Cognitive Services - Face API returns 'Face not found' scenarios for specific images
This might be a silly question, but I'm currently working on a .NET Core application that uses Azure's Face API to detect faces in images. However, I am working with a frustrating scenario where the API consistently returns a 'Face not found' behavior for certain images, even though they clearly contain faces. I've tested several images, and while some process correctly, others do not. The images that unexpected result are in JPEG format, under 1 MB, and have good resolution. Here's a snippet of the code I'm using to call the Face API: ```csharp var client = new FaceClient(new ApiKeyServiceClientCredentials("your_api_key")) { Endpoint = "https://your_region.api.cognitive.microsoft.com/" }; using (Stream imageStream = File.OpenRead("path_to_your_image.jpg")) { var faces = await client.Face.DetectWithStreamAsync(imageStream); } ``` I've ensured that the images are accessible and read correctly within the application. Additionally, I am calling the `DetectWithStreamAsync` method without any optional parameters for the face detection, but I'm beginning to wonder if there's an scenario with the image format or encoding. I also tried using various images, including those with different backgrounds and lighting conditions, and faced the same scenario with some of them. The behavior returned is quite straightforward, so I'm unsure why these images are not being processed. Has anyone else experienced this 'Face not found' behavior with specific images? Are there any best practices or configurations I might be missing? Am I missing something obvious?