// 1. ºñÆ®¸ÊÀ» °¡Á®¿É´Ï´Ù.
Bitamp in_bit= BitmapFactory.decodeResource(getResources(),R.drawable.xxx);
// 2. »õ·Ó°Ô º¯ÇÒ ºñÆ®¸ÊÀÇ ³ÐÀÌ¿Í ³ôÀ̸¦ ÁöÁ¤ÇÕ´Ï´Ù.
int new_width = 444;
int new_height=777;
// 3. Å©±â¸¦ º¯È½ÃÅ°¸ç »õ·Î¿î ºñÆ®¸ÊÀ» ¸¸µì´Ï´Ù.
Bitmap resized_bit = Bitmap.createScaledBitmap(in_bit, new_width, new_height, true);
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ÀÌ·¸°Ô Çؼ resized_bit ¿¡ »õ·Î¿î Å©±âÀÇ ºñÆ®¸ÊÀ» ³Ö°Ô µË´Ï´Ù.