Lecture 3 --- 6.837 Fall '01

DCT examples

Input Image

Input Data

Input Graph

DCT Coefficients

156	144	125	109	102	106	114	121
151	138	120	104	97	100	109	116
141	129	110	94	87	91	99	106
128	116	97	82	75	78	86	93
114	102	84	68	61	64	73	80
102	89	71	55	48	51	60	67
92	80	61	45	38	42	50	57
86	74	56	40	33	36	45	52

700	100	100	0	0	0	0	0
200	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0

120	108	90	75	69	73	82	89
127	115	97	81	75	79	88	95
134	122	105	89	83	87	96	103
137	125	107	92	86	90	99	106
131	119	101	86	80	83	93	100
117	105	87	72	65	69	78	85
100	88	70	55	49	53	62	69
89	77	59	44	38	42	51	58

700	90	100	0	0	0	0	0
90	0	0	0	0	0	0	0
-89	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0

Slide 31c

6.837 Fall '01