/// <summary>
/// 文字识别
/// </summary>
/// <param name="recognitionMode">识别方式</param>
/// <returns>文字识别的协程</returns>
public static Coroutine Recognition(CharacterRecognitionModeBase recognitionMode)
{
if (recognitionMode == null || recognitionMode.ImageSource == null)
{
GlobalTools.LogError("文字识别失败：识别方式和识别图像源均不能为空！");
return(null);
}
return(Main.Current.StartCoroutine(RecognitionCoroutine(recognitionMode)));
}
private static IEnumerator RecognitionCoroutine(CharacterRecognitionModeBase recognitionMode)
{
string url = string.Format("{0}?access_token={1}", recognitionMode.API, TOKEN);
WWWForm form = new WWWForm();
form.AddField("image", recognitionMode.GetImageSourceByBase64());
form.AddField("recognize_granularity", recognitionMode.Granularity == CharacterRecognitionModeBase.RecognizeGranularity.Big ? "big" : "small");
form.AddField("language_type", recognitionMode.Language.ToString());
form.AddField("detect_direction", recognitionMode.IsDetectDirection ? "true" : "false");
form.AddField("detect_language", recognitionMode.IsDetectLanguage ? "true" : "false");
using (UnityWebRequest request = UnityWebRequest.Post(url, form))
{
request.SetRequestHeader("Content-Type", recognitionMode.ContentType);
yield return(request.SendWebRequest());
if (!request.isNetworkError && !request.isHttpError)
{
JsonData jsonData = GlobalTools.StringToJson(request.downloadHandler.text);
if (jsonData.Keys.Contains("error_code"))
{
GlobalTools.LogError("文字识别失败：" + jsonData["error_code"].ToString() + " " + jsonData["error_msg"].ToString());
recognitionMode.FailHandler?.Invoke();
}
else
{
recognitionMode.SuccessHandler?.Invoke(new OCRResponse(jsonData));
}
}
else
{
GlobalTools.LogError("文字识别失败：" + request.responseCode + " " + request.error);
recognitionMode.FailHandler?.Invoke();
}
}
}