[android-developers] Re: Troubles with Utils.matToBitmap

nevermind,got it./

Thanks

On Feb 19, 6:18 pm, adiel ashrov <adiel.ash...@gmail.com> wrote:
> Hey everyone,
>
> I have s small app which takes a picture and i want to threshold it.
> for some reason the function Utils.matToBitmap crashes when I use it
> after the threshold, any thoughts on how to solve this?
>
> the Code:
> protected void onActivityResult(int requestCode, int resultCode,
> Intent data) {
>             if (requestCode == CAMERA_PIC_REQUEST) {
>                         try {
>                                 Bitmap bitmap = (Bitmap) data.getExtras().get("data");
>                                 this._Gray = Utils.bitmapToMat(bitmap);
>                                 Mat tMat = thresholdPicture();
>                                 Bitmap tOutBitmap =
> Bitmap.createBitmap(tMat.cols(),tMat.rows(),Bitmap.Config.ARGB_8888);
>                                 if (Utils.matToBitmap(tMat, tOutBitmap))//Crash here
>                                 {
>                                         this.setContentView(R.layout.picture_display);
>                                         Drawable drawable =new BitmapDrawable(getResources(),tOutBitmap);
>                                         SurfaceView tSurfaceView = (SurfaceView)
> findViewById(R.id.surfaceView1);
>                                 tSurfaceView.setBackgroundDrawable(drawable);//TODO: not
> working if we picture vertically
>                                 }
>                                 else{
>                                         Log.i("OpenCV", "Failed convert mat to bitmap");
>                                 }
>                         }
>                         catch (Exception e) {
>                                 Log.i("OpenCV", "Failed to Use OpenCV" + e.getMessage());
>                         }
>             }
>         }
>
>         private Mat thresholdPicture(){
>                 Mat tMatThreshed = new Mat();
>                 Imgproc.cvtColor(this._Gray, this._Gray, Imgproc.COLOR_RGB2GRAY);
>                 Imgproc.threshold(this._Gray, tMatThreshed, 100,
> 100,Imgproc.THRESH_BINARY);
>                 return tMatThreshed;
>
>         }
>
> }
>
> Thank you

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