[android-developers] Re: Byte [] image

Hi,

YUV conversion is only required for camera preview images not camera
photos.

Regards

On Jul 30, 12:59 pm, Jim Graham <spooky1...@gmail.com> wrote:
> On Mon, Jul 30, 2012 at 07:12:52AM -0700, Numair Qadir wrote:
> > I'm working on an app, in which i convert the byte[] image to bitmap, but
> > it showed me some weird image, (in attachment), here is my code
>
> No need to look at the attached image...I can already see the errors.
>
> >   int width = parameters.getPreviewSize (). width;
> >   int height = parameters.getPreviewSize (). height;
>
> Ok, why are you bothering with the preview size?  You aren't dealing with
> the preview here---you're dealing with the PHOTO image now.  But that's
> not important, as you don't even NEED the width or height here.  So
> remove the above two lines.
>
> >   ByteArrayOutputStream outStr = new ByteArrayOutputStream ();
> >   Rect rect = new Rect (0, 0, width, height);
> >   YuvImage yuvimage = new YuvImage (arg0, ImageFormat.NV21, width,
> >      height, null);
> >   yuvimage.compressToJpeg (rect, 100, outStr);
>
> Ok, what's all this junk for?  Toss it all into the bin....
>
> >   Bitmap bmp = BitmapFactory.decodeByteArray (outstr.toByteArray (), 0,
> >        outstr.size ());
>
> Ok, now we're where we should be...except what you have about should look
> more like this:
>
> public void onPictureTaken(final byte[] data, final Camera camera) {
>    .....
>    Bitmap bmp = BitmapFactory.decodeByteArray(data, 0, data.length, options);
>    .....
>
> }
>
> And then you have your bitmap.  Be careful, however...anything over about
> 3 MP is going to cause an Out Of Memory Error when you exceed the amount
> of heap the Java side allows you to use (which may be higher for devices
> with higher-resolution cameras).  I suggest using try/catch to avoid
> locking the camera and forcing the user to reboot to reset the camera.
> Then you can at least exit gracefully.
>
> Later,
>    --jim
>
> --
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>
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