/// <summary>
/// Recognizes text in a given image.
/// </summary>
/// <returns><c>true</c>, if text was recognized, <c>false</c> otherwise.</returns>
/// <param name="callback">Callback.</param>
/// <param name="imagePath">Image path.</param>
public bool RecognizeText(OnRecognizeText callback, string imagePath)
{
if (string.IsNullOrEmpty(imagePath))
{
throw new ArgumentNullException("Define an image path to classify!");
}
if (string.IsNullOrEmpty(mp_ApiKey))
{
mp_ApiKey = Config.Instance.GetAPIKey(SERVICE_ID);
}
if (string.IsNullOrEmpty(mp_ApiKey))
{
throw new WatsonException("FindClassifier - VISUAL_RECOGNITION_API_KEY needs to be defined in config.json");
}
byte[] imageData = null;
if (imagePath != default(string))
{
if (LoadFile != null)
{
imageData = LoadFile(imagePath);
}
else
{
#if !UNITY_WEBPLAYER
imageData = File.ReadAllBytes(imagePath);
#endif
}
if (imageData == null)
{
Log.Error("VisualRecognition", "Failed to upload {0}!", imagePath);
}
}
return(RecognizeText(callback, imagePath, imageData));
}
private bool RecognizeText(OnRecognizeText callback, string imagePath, byte[] imageData = default(byte[]))
{
RESTConnector connector = RESTConnector.GetConnector(SERVICE_ID, SERVICE_RECOGNIZE_TEXT);
if (connector == null)
{
return(false);
}
RecognizeTextReq req = new RecognizeTextReq();
req.Callback = callback;
req.Timeout = REQUEST_TIMEOUT;
req.OnResponse = OnRecognizeTextResp;
req.Parameters["api_key"] = mp_ApiKey;
req.Parameters["version"] = VisualRecognitionVersion.Version;
if (imageData != null)
{
req.Send = imageData;
}
return(connector.Send(req));
}
/// <summary>
/// Recognizes text given an image url.
/// </summary>
/// <returns><c>true</c>, if text was recognized, <c>false</c> otherwise.</returns>
/// <param name="url">URL.</param>
/// <param name="callback">Callback.</param>
public bool RecognizeText(string url, OnRecognizeText callback)
{
if (string.IsNullOrEmpty(url))
{
throw new ArgumentNullException("url");
}
if (callback == null)
{
throw new ArgumentNullException("callback");
}
if (string.IsNullOrEmpty(mp_ApiKey))
{
mp_ApiKey = Config.Instance.GetAPIKey(SERVICE_ID);
}
if (string.IsNullOrEmpty(mp_ApiKey))
{
throw new WatsonException("FindClassifier - VISUAL_RECOGNITION_API_KEY needs to be defined in config.json");
}
RESTConnector connector = RESTConnector.GetConnector(SERVICE_ID, SERVICE_RECOGNIZE_TEXT);
if (connector == null)
{
return(false);
}
RecognizeTextReq req = new RecognizeTextReq();
req.Callback = callback;
req.OnResponse = OnRecognizeTextResp;
req.Parameters["api_key"] = mp_ApiKey;
req.Parameters["url"] = url;
req.Parameters["version"] = VisualRecognitionVersion.Version;
return(connector.Send(req));
}
