/// <summary>
/// Evaluates an image using the Image Moderation APIs.
/// </summary>
/// <param name="client">The Content Moderator API wrapper to use.</param>
/// <param name="imageUrl">The URL of the image to evaluate.</param>
/// <returns>Aggregated image moderation results for the image.</returns>
/// <remarks>This method throttles calls to the API.
/// Your Content Moderator service key will have a requests per second (RPS)
/// rate limit, and the SDK will throw an exception with a 429 error code
/// if you exceed that limit. A free tier key has a 1 RPS rate limit.
/// </remarks>
private static EvaluationData EvaluateImage(
ContentModeratorClient client, string imageUrl)
{
var url = new BodyModel("URL", imageUrl.Trim());
var imageData = new EvaluationData();
imageData.ImageUrl = url.Value;
// Evaluate for adult and racy content.
imageData.ImageModeration =
client.ImageModeration.EvaluateUrlInput("application/json", url, true);
Thread.Sleep(1000);
// Detect and extract text.
imageData.TextDetection =
client.ImageModeration.OCRUrlInput("eng", "application/json", url, true);
Thread.Sleep(1000);
// Detect faces.
imageData.FaceDetection =
client.ImageModeration.FindFacesUrlInput("application/json", url, true);
Thread.Sleep(1000);
return(imageData);
}
static void Main(string[] args)
{
// <snippet_main>
// Create an object to store the image moderation results.
List <EvaluationData> evaluationData = new List <EvaluationData>();
// Create an instance of the Content Moderator API wrapper.
using (var client = Clients.NewClient())
{
// Read image URLs from the input file and evaluate each one.
using (StreamReader inputReader = new StreamReader(ImageUrlFile))
{
while (!inputReader.EndOfStream)
{
string line = inputReader.ReadLine().Trim();
if (line != String.Empty)
{
EvaluationData imageData = EvaluateImage(client, line);
evaluationData.Add(imageData);
}
}
}
}
// Save the moderation results to a file.
using (StreamWriter outputWriter = new StreamWriter(OutputFile, false))
{
outputWriter.WriteLine(JsonConvert.SerializeObject(
evaluationData, Formatting.Indented));
outputWriter.Flush();
outputWriter.Close();
}
// </snippet_main>
}
