I need some help with BitmapFactory.decode and BitmapFactory.createScaledBitmap.
In our app we use this code for resize image:
public static synchronized File resizeBitmap(File file, int expectedWidth) throws IOException {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inScaled = false;
options.inDither = false;
options.inPreferredConfig = Bitmap.Config.ARGB_8888;
Bitmap bitmap = BitmapFactory.decodeFile(file.getAbsolutePath(), options);
float width = bitmap.getWidth() / (float) expectedWidth;
int expectedHeight = (int) (bitmap.getHeight() / width);
Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmap, expectedWidth, expectedHeight, true);
String path = Environment.getExternalStorageDirectory().toString();
File tempFile = new File(path, "temp.jpg");
if (tempFile.exists())
tempFile.delete();
FileOutputStream fileOutputStream = new FileOutputStream(tempFile.getAbsolutePath());
scaledBitmap.compress(Bitmap.CompressFormat.JPEG, 80, fileOutputStream);
fileOutputStream.flush();
fileOutputStream.close();
return tempFile;
}
But we have quality loss on Bitmap after it. What we can do, to fix this problem?
As you can see, image became more sharpen
Try to set this to 100:
scaledBitmap.compress(Bitmap.CompressFormat.JPEG, 100, fileOutputStream);