protected override IImageSource FromFileImpl(string path, int?quality = 75)
{
return(new UwpImageSourceImpl(Path.GetFileName(path),
() => {
var stream = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
return stream.AsRandomAccessStream();
}, (int)quality));
}
private async Task TakePicture(string conversID)
{
if (!WebcamService.IsInitialized)
{
await WebcamService.InitializeCameraAsync();
await WebcamService.StartCameraPreviewAsync();
}
using (var stream = new InMemoryRandomAccessStream())
{
ImageEncodingProperties imgFormat = ImageEncodingProperties.CreatePng();
// create storage file in local app storage
StorageFile file = await ApplicationData.Current.LocalFolder.CreateFileAsync(
"AdaPhotoTMP.png",
CreationCollisionOption.ReplaceExisting);
// take photo
await WebcamService.MediaCapture.CapturePhotoToStorageFileAsync(imgFormat, file);
FileStream fileStream = new FileStream(file.Path, FileMode.Open);
Stream streamFinal = fileStream.AsRandomAccessStream().AsStream();
StringConstructorSDK client = new StringConstructorSDK()
{
WebAppUrl = $"{ AppConfig.WebUri}"
};
try
{
var activity = new Activity
{
From = new ChannelAccount("Jean"),
Text = "Picture from UWP",
Type = ActivityTypes.Message,
//Envoyer le stream
ChannelData = await client.PictureAnalyseAsync(AppConfig.Vision, streamFinal),
//ATTENTION CONVERSID DIFFERENT!!!!!
Name = conversID,
//Summary = serviceUrl
};
await _client.Conversations.PostActivityAsync(_conversation.ConversationId, activity);
}
catch (HttpRequestException)
{
//Impossible to take picture
}
}
}
//OCR Function
public static async Task <OcrResult> MyFunction(string fileURL)
{
var ocrEngine = OcrEngine.TryCreateFromLanguage(new Windows.Globalization.Language("en-us"));
if (ocrEngine == null)
{
throw new InvalidOperationException("engine was null");
}
FileStream imageStream = File.Open(fileURL, FileMode.Open);
var decoder = await BitmapDecoder.CreateAsync(imageStream.AsRandomAccessStream());
var softwareBitmap = await decoder.GetSoftwareBitmapAsync();
var ocrResult = await ocrEngine.RecognizeAsync(softwareBitmap);
imageStream.Dispose();
return(ocrResult);
}
