TY - GEN
T1 - Image quality measurement in the frequency domain
AU - Triantafyllidis, George A.
PY - 2010
Y1 - 2010
N2 - In this paper a novel frequency domain technique estimating the significance of blocking artifacts in images coded using the Discrete Cosine Transform is proposed. First a gradient image is computed which is then split into blocks. For each block, the blocking artifacts in the horizontal and vertical directions are detected by comparing ratios obtained from harmonics in each block with the corresponding ratios in the same block of the reference image. An image quality metric based on the significance of the differences of the ratios between the test picture and the reference picture for each block is introduced.
AB - In this paper a novel frequency domain technique estimating the significance of blocking artifacts in images coded using the Discrete Cosine Transform is proposed. First a gradient image is computed which is then split into blocks. For each block, the blocking artifacts in the horizontal and vertical directions are detected by comparing ratios obtained from harmonics in each block with the corresponding ratios in the same block of the reference image. An image quality metric based on the significance of the differences of the ratios between the test picture and the reference picture for each block is introduced.
UR - http://www.scopus.com/inward/record.url?scp=77953856200&partnerID=8YFLogxK
U2 - 10.1109/ISCCSP.2010.5463401
DO - 10.1109/ISCCSP.2010.5463401
M3 - Article in proceeding
AN - SCOPUS:77953856200
SN - 9781424462858
T3 - Final Program and Abstract Book - 4th International Symposium on Communications, Control, and Signal Processing, ISCCSP 2010
BT - Final Program and Abstract Book - 4th International Symposium on Communications, Control, and Signal Processing, ISCCSP 2010
T2 - 4th International Symposium on Communications, Control, and Signal Processing, ISCCSP-2010
Y2 - 3 March 2010 through 5 March 2010
ER -