void RunDocumentDetection(NSUrl imgurl)
{
DebugLog("Performing document detection on image " + imgurl);
Task.Run(() =>
{
// The SDK call is sync!
var detectionResult = SBSDK.DetectDocument(imgurl);
if (detectionResult.Status.IsOk())
{
var imageResult = detectionResult.Image as UIImage;
DebugLog("Detection result image: " + imageResult);
documentImageUrl = AppDelegate.TempImageStorage.AddImage(imageResult);
ShowImageView(imageResult);
DebugLog("Detection result polygon: ");
string resultString = "";
foreach (var p in detectionResult.Polygon)
{
resultString += p + "\n";
}
DebugLog(resultString);
}
else
{
DebugLog("No Document detected! DetectionStatus = " + detectionResult.Status);
ShowErrorMessage("No Document detected! DetectionStatus = " + detectionResult.Status);
}
});
}
void RunDocumentDetection(AndroidNetUri imageUri)
{
DebugLog("Running document detection on image: " + imageUri);
Task.Run(() =>
{
try
{
// The SDK call is sync!
var detectionResult = SBSDK.DetectDocument(imageUri, this);
DebugLog("Document detection result: " + detectionResult.Status);
if (detectionResult.Status.IsOk())
{
var documentImage = detectionResult.Image as Bitmap;
documentImageUri = MainApplication.TempImageStorage.AddImage(documentImage);
ShowImageView(documentImage);
DebugLog("Detected polygon: ");
foreach (var p in detectionResult.Polygon)
{
DebugLog(p.ToString());
}
}
else
{
DebugLog("No document detected!");
RunOnUiThread(() =>
{
Toast.MakeText(this, "No document detected! (Detection result: " + detectionResult.Status + ")", ToastLength.Long).Show();
});
}
}
catch (Exception e)
{
ErrorLog("Error while document detection", e);
}
});
}
private void DetectDocument(Bitmap bitmap)
{
if (!CheckScanbotSDKLicense())
{
return;
}
//store original image as file
var originalImgUri = MainApplication.TempImageStorage.AddImage(bitmap);
var detectionResult = SBSDK.DetectDocument(bitmap);
DebugLog("Document detection result: " + detectionResult.Status);
if (detectionResult.Status.IsOk())
{
var documentImage = detectionResult.Image as Bitmap;
imageView1.SetImageBitmap(documentImage);
//Store data as docu file
documentImageUri = MainApplication.TempImageStorage.AddImage(documentImage);
DebugLog("Detected polygon: ");
foreach (var p in detectionResult.Polygon)
{
DebugLog(p.ToString());
}
}
else
{
//No docu!
documentImageUri = originalImgUri;
DebugLog("No document detected!");
}
if (documentImageUri != null)
{
RecognizeText();
}
}
public void OnPictureTaken(byte[] image, int imageOrientation)
{
// Here we get the full image from the camera and apply document detection on it.
// Implement a suitable async(!) detection and image handling here.
// This is just a demo showing detected image as downscaled preview image.
Log.Debug(LOG_TAG, "OnPictureTaken: imageOrientation = " + imageOrientation);
// Show progress spinner:
RunOnUiThread(() => {
imageProcessingProgress.Visibility = ViewStates.Visible;
userGuidanceTextView.Visibility = ViewStates.Gone;
});
// decode bytes as Bitmap
BitmapFactory.Options options = new BitmapFactory.Options();
options.InSampleSize = 1;
var originalBitmap = BitmapFactory.DecodeByteArray(image, 0, image.Length, options);
// rotate original image if required:
if (imageOrientation > 0)
{
Matrix matrix = new Matrix();
matrix.SetRotate(imageOrientation, originalBitmap.Width / 2f, originalBitmap.Height / 2f);
originalBitmap = Bitmap.CreateBitmap(originalBitmap, 0, 0, originalBitmap.Width, originalBitmap.Height, matrix, false);
}
// Store the original image as file:
var originalImgUri = MainApplication.TempImageStorage.AddImage(originalBitmap);
Android.Net.Uri documentImgUri = null;
// Run document detection on original image:
var detectionResult = SBSDK.DetectDocument(originalBitmap);
if (detectionResult.Status.IsOk())
{
var documentImage = detectionResult.Image as Bitmap;
// Store the document image as file:
documentImgUri = MainApplication.TempImageStorage.AddImage(documentImage);
}
else
{
// No document detected! Use original image as document image, so user can try to apply manual cropping.
documentImgUri = originalImgUri;
}
//this.detectedPolygon = detectionResult.Polygon;
Bundle extras = new Bundle();
extras.PutString(EXTRAS_ARG_DOC_IMAGE_FILE_URI, documentImgUri.ToString());
extras.PutString(EXTRAS_ARG_ORIGINAL_IMAGE_FILE_URI, originalImgUri.ToString());
Intent intent = new Intent();
intent.PutExtras(extras);
SetResult(Result.Ok, intent);
Finish();
return;
/* If you want to continue scanning:
* RunOnUiThread(() => {
* // continue camera preview
* cameraView.StartPreview();
* cameraView.ContinuousFocus();
* });
*/
}