Bitmap compressé avec qualité=100 plus grande taille de fichier que l'original

J'essaie d'envoyer une image à un serveur. Avant de l'envoyer, je suis en réduisant sa taille et la qualité, puis de fixer la rotation de la question. Mon problème est que, après la rotation de l'image, lorsque je sauvegarde, le fichier est plus gros qu'avant. Avant de rotation de la taille a été 10092 et après la rotation est 54226

//Scale image to reduce it
Bitmap reducedImage = reduceImage(tempPhotoPath);
//Decrease photo quality
FileOutputStream fos = new FileOutputStream(tempPhotoFile);
reducedImage.compress(CompressFormat.JPEG, 55, fos);
fos.flush();
fos.close();
//Check and fix rotation issues
Bitmap fixed = fixRotation(tempPhotoPath);
if(fixed!=null)
{
FileOutputStream fos2 = new FileOutputStream(tempPhotoFile);
fixed.compress(CompressFormat.JPEG, 100, fos2);
fos2.flush();
fos2.close();
}
public Bitmap reduceImage(String originalPath)
{
//Decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
o.inPurgeable = true;
o.inInputShareable = true;
BitmapFactory.decodeFile(originalPath, o);
//The new size we want to scale to
final int REQUIRED_SIZE = 320;
//Find the correct scale value. It should be the power of 2.
int width_tmp = o.outWidth, height_tmp = o.outHeight;
int scale = 1;
while (true) {
if (width_tmp / 2 < REQUIRED_SIZE || height_tmp / 2 < REQUIRED_SIZE) {
break;
}
width_tmp /= 2;
height_tmp /= 2;
scale *= 2;
}
//Decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inPurgeable = true;
o2.inInputShareable = true;
o2.inSampleSize = scale;
Bitmap bitmapScaled = null;
bitmapScaled = BitmapFactory.decodeFile(originalPath, o2);
return bitmapScaled;
}
public Bitmap fixRotation(String path)
{
Bitmap b = null;
try
{
//Find if the picture is rotated
ExifInterface exif = new ExifInterface(path);
int degrees = 0;
if(exif.getAttribute(ExifInterface.TAG_ORIENTATION).equalsIgnoreCase("6"))
degrees = 90;
else if(exif.getAttribute(ExifInterface.TAG_ORIENTATION).equalsIgnoreCase("8"))
degrees = 270;
else if(exif.getAttribute(ExifInterface.TAG_ORIENTATION).equalsIgnoreCase("3"))
degrees = 180;
if(degrees > 0)
{
BitmapFactory.Options o = new BitmapFactory.Options();
o.inPurgeable = true;
o.inInputShareable = true;
Bitmap bitmap = BitmapFactory.decodeFile(path, o);
int w = bitmap.getWidth();
int h = bitmap.getHeight();
Matrix mtx = new Matrix();
mtx.postRotate(degrees);
b = Bitmap.createBitmap(bitmap, 0, 0, w, h, mtx, true);
}
}
catch(Exception e){e.printStackTrace();}
return b;
}

OriginalL'auteur Pablo Moncunill | 2013-03-04