Question

When i take a picture from the camera i get an image of size 300-500 K.B (1800 X 1700 px).

But when i take a picture from my application i get an image of size 30-50 K.B (150 X 200 px).

How can i resize 150 x 200 px to something like 300 x 400 px??

because the server i am sending this image to, won’t accept images lesser than 280 x 360 px dimensions.

The code i am using now is:

Bitmap bit = (Bitmap) data.getExtras().get("data");
ByteArrayOutputStream bao = new ByteArrayOutputStream();
bit.compress(Bitmap.CompressFormat.JPEG, 100, bao);
byte[] ba = bao.toByteArray();
File imagesFolder = new File(Environment.getExternalStorageDirectory(), "My - Images");
File f = new File(imagesFolder, "test.jpg");
f.createNewFile();
FileOutputStream fo = new FileOutputStream(f);
fo.write(ba);
fo.flush();
fo.close();

i am not compressing the image, but still i get 10 times lesser image size compared to the image take using the camera from home screen.

Thank You

Answer 1

To get full sized camera image you should point camera to save picture in some temporary file. then only you can get a actual size image.

intent = new Intent("android.media.action.IMAGE_CAPTURE");
File photo;
try
{
    // place where to store camera taken picture
    photo = this.createTemporaryFile("picture", ".jpg");
    photo.delete();
}
catch(Exception e)
{
    Log.v(TAG, "Can't create file to take picture!");
    Toast.makeText(activity, "Please check SD card! Image shot is impossible!", 10000);
    return false;
}
mImageUri = Uri.fromFile(photo);
intent.putExtra(MediaStore.EXTRA_OUTPUT, mImageUri);
//start camera intent
activity.startActivityForResult(this, intent, MenuShootImage);

private File createTemporaryFile(String part, String ext) throws Exception
{
File tempDir= Environment.getExternalStorageDirectory();
tempDir=new File(tempDir.getAbsolutePath()+"/.temp/";
if(!tempDir.exists())
{
    tempDir.mkdir();
}
return File.createTempFile(part, ext, tempDir);
}

Then after image capture intent finished to work – just grab your picture from imageUri using following code:

public void grabImage(ImageView imageView)
{
this.getContentResolver().notifyChange(mImageUri, null);
ContentResolver cr = this.getContentResolver();
Bitmap bitmap;
try
{
    bitmap = android.provider.MediaStore.Images.Media.getBitmap(cr, mImageUri);
    imageView.setImageBitmap(bitmap);
}
catch (Exception e)
{
    Toast.makeText(this, "Failed to load", Toast.LENGTH_SHORT).show();
    Log.d(TAG, "Failed to load", e);
}
}


//called after camera intent finished
@Override
public void onActivityResult(int requestCode, int resultCode, Intent intent)
{
if(requestCode==MenuShootImage && resultCode==RESULT_OK)
{
   ImageView imageView;
   //... some code to inflate/create/find appropriate ImageView to place grabbed image
   this.grabImage(imageView);
}
super.onActivityResult(requestCode, resultCode, intent);
}