Keywords: Mona Lisa, by Leonardo da Vinci, from C2RMF retouched detail grayscale.gif en Cropped grayscale detail of Mona Lisa for assorted FFT experiments http //commons wikimedia org/wiki/File Mona_Lisa _by_Leonardo_da_Vinci _from_C2RMF_retouched jpg Leonardo da Vinci Details of Mona Lisa PD-old-100 |