Rotation Example - Samsung S3C2416 User Manual

2D
4.2.2 Rotation Effect
0°
dcx
x
dcy
y
Original image
FIMG - 2D
18-10
90°
-dcy + (ox+oy)
dcx - (ox-oy)
270 °
Figure 18-8. Rotation Example
180°
-dcx + 2ox dcy + (ox-oy)
-dcy + 2oy -dcx + (ox+oy)
90 °
X - axis flip
S3C2416X RISC MICROPROCESSOR
270° X-flip
dcx
-dcy + 2oy
180 °
Y - axis flip
Y-flip
-dcx + 2ox
dcy