airplane 510x510	barbara 510x510	boats 510x510	lena 510x510	mandril 510x510	peppers 510x510	tiffany 510x510	zelda 510x510	Mean	Std	Max	Min	Comments
	phash cmp3	phash cmp3	phash cmp3	phash cmp3	phash cmp3	phash cmp3	phash cmp3	phash cmp3					fixed 1px wide border problems - center crop to 510x510
	I1-I7	I1-I7	I1-I7	I1-I7	I1-I7	I1-I7	I1-I7	I1-I7					all images converted to -colorspace gray
	Grayscale	Grayscale	Grayscale	Grayscale	Grayscale	Grayscale	Grayscale	Grayscale
brightness -20%	19.81	60.38	22.80	40.68	30.15	42.15	12.90	86.95	39.48	24.37	86.95	12.90	-brightness-contrast bri,0 function
brightness -15%	10.24	31.62	12.52	20.90	16.35	26.62	6.66	50.53	21.93	14.27	50.53	6.66
brightness -10%	4.15	12.16	5.66	8.53	7.10	10.98	2.69	24.28	9.44	6.80	24.28	2.69
brightness -5%	1.05	2.89	1.69	2.13	1.80	1.78	0.69	8.01	2.50	2.32	8.01	0.69
brightness 5%	0.90	2.28	1.70	1.78	1.50	1.85	0.70	1.97	1.59	0.54	2.28	0.70
brightness 10%	3.38	8.21	6.23	6.51	5.52	6.80	4.63	4.68	5.75	1.51	8.21	3.38
brightness 15%	10.24	31.62	12.52	20.90	16.35	26.62	6.66	50.53	21.93	14.27	50.53	6.66
brightness 20%	12.22	26.91	20.37	22.56	18.50	23.40	28.27	15.91	21.02	5.42	28.27	12.22
contrast -20%	0.49	5.59	3.20	3.61	2.40	3.91	0.06	2.71	2.75	1.80	5.59	0.06	-brightness-contrast 0,con function
contrast -15%	0.25	3.16	1.78	2.00	1.31	2.18	0.03	1.59	1.54	1.02	3.16	0.03
contrast -10%	0.10	1.42	0.78	0.88	0.57	0.97	0.01	0.75	0.68	0.46	1.42	0.01
contrast -5%	0.02	0.36	0.19	0.22	0.14	0.24	0.00	0.89	0.26	0.28	0.89	0.00
contrast 5%	0.02	0.39	0.13	0.22	0.14	0.22	0.07	2.73	0.49	0.91	2.73	0.02
contrast 10%	0.06	1.59	0.32	0.85	0.52	0.80	0.30	7.49	1.49	2.47	7.49	0.06
contrast 15%	0.12	3.72	0.46	1.92	1.07	3.23	1.24	12.28	3.00	3.95	12.28	0.12
contrast 20%	0.17	6.68	0.54	3.33	1.67	5.48	4.16	17.49	4.94	5.56	17.49	0.17
gamma 0.75	3.85	11.18	3.99	10.28	4.75	6.78	3.88	20.55	8.16	5.79	20.55	3.85	-gamma function
gamma 0.8	2.30	6.58	2.37	6.09	2.84	3.46	2.29	13.79	4.96	3.96	13.79	2.29
gamma 0.85	1.20	3.39	1.23	3.12	1.51	1.37	1.22	8.12	2.64	2.38	8.12	1.20
gamma 0.9	0.52	1.42	0.52	1.33	0.62	2.19	0.51	4.44	1.44	1.35	4.44	0.51
gamma 1.1	0.40	1.09	0.40	1.02	0.50	0.42	0.43	4.99	1.16	1.57	4.99	0.40
gamma 1.25	0.87	2.27	0.85	2.16	1.08	0.88	0.87	2.02	1.38	0.65	2.27	0.85
blur 0.5	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-blur 0xsigma function
blur 1	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
blur 2	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
blur 3	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
compress 5	0.07	0.01	0.01	0.00	0.15	0.04	2.34	0.43	0.38	0.81	2.34	0.00	jpg compression; -compress function
compress 10	0.00	0.00	0.00	0.01	0.08	0.12	0.02	0.55	0.10	0.19	0.55	0.00	jpg compression; -compress function
compress 25	0.00	0.00	0.00	0.00	0.00	0.00	0.01	0.00	0.00	0.00	0.01	0.00	jpg compression; -compress function
compress 50	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.17	0.02	0.06	0.17	0.00
compress 75	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.05	0.01	0.02	0.05	0.00
compress 100	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
gray noise 0.5	0.00	0.09	0.05	0.06	0.03	0.06	0.00	2.83	0.39	0.98	2.83	0.00	gaussioan noise; -attenuate X +noise gaussian
gray noise 1	0.02	0.38	0.19	0.26	0.13	0.23	0.01	0.96	0.27	0.30	0.96	0.01
gray noise 1.5	0.05	0.88	0.45	0.61	0.31	0.54	0.03	0.53	0.43	0.28	0.88	0.03
gray noise 2	0.10	1.60	0.84	1.12	0.59	1.01	0.06	0.86	0.77	0.51	1.60	0.06
gray noise 2.5	0.17	2.52	1.34	1.80	0.95	1.59	0.11	1.32	1.22	0.81	2.52	0.11
gray noise 3	0.26	3.54	1.89	2.54	1.35	2.24	0.16	1.81	1.72	1.13	3.54	0.16
resize 25%	0.00	0.00	0.00	0.01	0.01	0.09	0.02	0.24	0.05	0.08	0.24	0.00
resize 50%	0.00	0.00	0.00	0.00	0.00	0.01	0.00	0.01	0.00	0.00	0.01	0.00	-resize function
resize 75%	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
resize 150%	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
resize 200%	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
resize 400%	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
rotation -90	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	-rotate function (black background)
rotation -45	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
rotation -30	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
rotation -15	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
rotation -5	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
rotation 5	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
rotation 15	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
rotation 30	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
rotation 45	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
rotation 90	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
flop	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
flip	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
transpose	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
transverse	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
translate north (black)	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	256x256 black background; -extent function
traslate west (black)	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	results good for all
translate northwest (black)	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
translate north vs west (black)	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.01	0.00	0.00	0.01	0.00
translate north (white)	23.87	21.67	61.28	12.89	15.51	14.71	8.95	20.73	22.45	16.45	61.28	8.95	256x256 white background; -extent function
traslate west (white)	13.22	19.93	51.47	13.60	14.92	13.73	13.77	23.21	20.48	13.04	51.47	13.22
translate northwest (white)	16.53	21.48	51.18	18.94	19.36	21.38	21.75	11.22	22.73	12.01	51.18	11.22
translate north vs west (white)	1.71	0.04	0.50	0.27	0.03	0.05	1.04	0.15	0.47	0.60	1.71	0.03	results good only with same size compare
watermark 20%	0.00	0.01	0.01	0.02	0.05	0.06	0.02	1.32	0.18	0.46	1.32	0.00	sphinx.gif; 66x56; gravity center
watermark 40%	0.00	0.10	0.01	0.07	0.14	0.35	0.08	5.94	0.84	2.06	5.94	0.00
watermark 60%	0.00	0.40	0.01	0.23	1.99	1.44	0.20	9.93	1.78	3.37	9.93	0.00
watermark 80%	0.01	0.83	0.02	0.42	0.24	1.82	0.39	12.25	2.00	4.18	12.25	0.01
watermark 100%	0.01	1.08	0.03	0.55	0.04	1.87	0.39	13.29	2.16	4.54	13.29	0.01
shear 1	0.82	0.28	0.31	0.31	0.29	0.43	2.22	0.96	0.70	0.67	2.22	0.28	-shear function (black background)
shear 2	2.32	1.57	0.95	1.78	0.96	1.16	5.92	3.60	2.28	1.71	5.92	0.95
shear 3	3.95	5.52	1.69	7.54	1.96	1.96	9.74	5.57	4.74	2.92	9.74	1.69
shear 4	5.59	4.91	2.47	16.09	3.49	2.81	14.14	7.19	7.09	5.21	16.09	2.47
shear 5	7.22	1.87	3.25	3.50	7.68	3.66	14.45	8.54	6.27	4.10	14.45	1.87
shear 10	15.06	2.39	6.87	3.00	6.45	8.27	26.25	14.79	10.38	7.96	26.25	2.39
arc 1	0.06	0.04	0.02	0.10	0.66	0.06	0.69	2.03	0.46	0.69	2.03	0.02	-distort arc function (black background)
arc 2	0.27	0.17	0.07	0.44	1.89	0.50	5.77	3.89	1.62	2.12	5.77	0.07
arc 3	0.85	0.50	0.14	1.27	3.25	1.20	11.04	5.29	2.94	3.69	11.04	0.14
arc 4	3.26	1.29	0.23	2.18	4.58	1.84	15.79	6.38	4.44	4.98	15.79	0.23
arc 5	2.79	4.92	0.33	3.13	6.60	2.44	20.12	7.28	5.95	6.16	20.12	0.33
arc 10	1.29	1.00	0.88	7.74	16.73	10.31	40.25	10.29	11.06	13.07	40.25	0.88
barrel 0.1	0.03	0.04	0.01	1.20	1.95	2.44	1.33	9.76	2.10	3.23	9.76	0.01	-distort barrel "0 0 0 x 1-x" function (black background)
barrel 0.2	0.14	0.13	0.04	0.58	1.85	8.31	0.71	5.41	2.15	3.06	8.31	0.04
barrel 0.3	0.39	0.27	0.13	0.45	10.53	46.78	1.15	8.06	8.47	16.00	46.78	0.13
barrel 0.4	0.97	0.45	0.29	0.64	1.59	39.69	2.24	10.27	7.02	13.60	39.69	0.29
pincushion 0.1	0.03	0.04	0.01	0.33	0.34	2.07	1.34	14.28	2.30	4.90	14.28	0.01	-distort barrel "0 0 0 -x 1.1+x" function (black background)
pincusion 0.2	0.11	0.22	0.04	3.65	1.93	6.49	4.60	26.05	5.39	8.67	26.05	0.04
pincusion 0.3	0.24	0.55	0.13	5.71	4.09	11.39	8.74	36.53	8.42	12.09	36.53	0.13
pincusion 0.4	0.42	0.77	0.25	3.06	5.95	11.33	10.31	42.08	9.27	13.96	42.08	0.25
airplane	0.00	25.35	37.64	17.74	17.24	13.74	98.22	20.18	32.87	29.86	98.22	13.74
barbara	25.35	0.00	3.74	4.70	69.36	22.70	217.51	42.57	55.13	75.11	217.51	3.74
boats	37.64	3.74	0.00	13.12	94.85	37.31	253.90	60.72	71.61	85.87	253.90	3.74
lena	17.74	4.70	13.12	0.00	49.09	16.90	176.06	42.04	45.66	59.68	176.06	4.70
mandril	17.24	69.36	94.85	49.09	0.00	21.75	50.31	26.00	46.94	28.19	94.85	17.24
peppers	13.74	22.70	37.31	16.90	21.75	0.00	135.85	17.15	37.91	43.86	135.85	13.74
tiffany2	98.22	217.51	253.90	176.06	50.31	135.85	0.00	126.44	151.18	69.99	253.90	50.31
zelda	20.18	42.57	60.72	42.04	26.00	17.15	126.44	0.00	47.87	37.83	126.44	17.15