Natee Vongurai และ Suphakant Phimoltares. (2012) Frequency-based steganography using 32x32 interpolated quantization table and discrete cosine transform. Chulalongkorn University:ม.ป.ท.Natee Vongurai และ Suphakant Phimoltares. 2012. Frequency-based steganography using 32x32 interpolated quantization table and discrete cosine transform. ม.ป.ท.:Chulalongkorn University;Natee Vongurai และ Suphakant Phimoltares. Frequency-based steganography using 32x32 interpolated quantization table and discrete cosine transform. ม.ป.ท.:Chulalongkorn University, 2012. Print.