Image Processing Reference
In-Depth Information
Corn
e
rs = 2
5
5 0
2
55 25
5
Corn
e
rs = 2
5
5 0
2
55 25
5
8
250
K
C
M
Y
7
200
6
5
150
4
100
3
2
50
1
0
0
0
20
40
60
80
100
120
0
20
40
60
80
100
120
From 0 to gamut corner
From 0 to gamut corner
Cor
n
ers =
0
255
255
2
55
Cor
n
ers =
0
255
255
2
55
250
8
K
C
M
Y
7
200
6
5
150
4
100
3
2
50
1
0
0
0
20
40
60
80
100
120
0
20
40
60
80
100
120
(i)
From 0 to gamut corner
From 0 to gamut corner
FIGURE 7.65 (continued)
(i) CMYK response (left) and corresponding round trip accuracy
(right) to dark green, dark red corners from 50,0,0 point (
0
on x-axis corresponds to 50,0,0
'
'
point).
Corn
e
rs = 0
0
0 2
5
5
Corn
e
rs = 0
0 0 2
5
5
250
8
K
C
M
Y
7
200
6
5
150
4
100
3
2
50
1
0
0
0
20
40
60
80
100
0
20
40
60
80
100
From 0 to gamut corner
From 0 to gamut corner
FIGURE 7.66
CMYK response and round trip accuracy to neutral axis
—
gamut corner plot
from 100,0,0 point to dark black corner. (
'
0
'
on x-axis corresponds to 100,0,0 point).
Or else, the error may be only due to the inversion process, if iterations are carried
out directly on the printer and the measurement process and system noise are
assumed to be well within the reasonable limits when compared to the total round
trip accuracy of the actual printing device. Improving accuracy can give rise to
Search WWH ::
Custom Search