S5D2650 Samsung Semiconductor, Inc., S5D2650 Datasheet - Page 39

• Manufacturer Part Number: S5D2650
• Description: Multistandard Video Decoder/scaler
• Manufacturer: Samsung Semiconductor, Inc.

S5D2650 Data Sheet
For ease of design, the difference between adjacent points must also be loaded. The complete data values for the
previous gamma factor of 1/2.2 is shown in the table below.
The flexibility of this architecture is shown in the following example. Here it is assumed that the S5D2650 is
operating in a YUV output mode but some form of Gamma correction is required. By converting the RGB gamma
correction function back to the YUV color space, the following function can be applied to the U and V signals for
improved color performance. This flexibility can be extended in software to produce many type of customer defined
transfer functions.
ELECTRONICS
Offset
1A
1B
1C
1D
1E
1F
10
11
12
13
14
15
16
17
18
19
A
B
C
D
E
0
1
2
3
4
5
6
7
8
9
F
program at index Offset+40h
Table 10: RGB Gamma LUT Values
GAMMA
120
128
136
144
151
158
164
170
176
181
187
192
197
202
207
216
220
225
229
233
237
241
245
249
252
110
211
53
73
87
99
0
program at index Offset+60h
GAMMAD
53
20
14
12
11
10
8
8
8
7
7
6
6
6
5
6
5
5
5
5
4
5
4
5
4
4
4
4
4
4
3
4
MULTIMEDIA VIDEO
PAGE 39 OF 95
7/18/03