Try this to Decode the Bitmap :
Where imagefilepath is the path name of image,it will be in String covert that to File by using
File photos= new File(imageFilePath);
Where photo is the File name of the Image,Now you set your height and width according t your requirements.
public void main(){
Bitmap bitmap = decodeFile(photo);
bitmap = Bitmap.createScaledBitmap(bitmap,150, 150, true);
imageView.setImageBitmap(bitmap);
}
private Bitmap decodeFile(File f){
try {
//decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeStream(new FileInputStream(f),null,o);
//Find the correct scale value. It should be the power of 2.
final int REQUIRED_SIZE=70;
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++;
}
//decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize=scale;
return BitmapFactory.decodeStream(new FileInputStream(f), null, o2);
} catch (FileNotFoundException e) {}
return null;
}