Application Programs and Systems - Heterogeneous Multicore Processor Technologies for Embedded Systems - page 206

input smoothing edges corners

SUSAN

application

X server

OS SMP Linux

Video4Linux2 SATA LCD USB

driver

Memory (DRAM)

hardware

CPU #0 CPU #1 CPU #2 CPU #3

Fig. 6.33 RP-X application software architecture

Fig. 6.34 SUSAN application window

The X toolkit is used to lay out the images. The “luvcview” [ 16 ] package is a web
camera viewer based on the UVC. The source code of the “luvcview” package is
available on the Internet. The “v4l2uvc.c” file and the related header files have been
extracted from the package and integrated into the application. The “v4l2uvc.c”
captures the UVC camera images using the Video4Linux2 driver.
Figure 6.34 shows the display image of the SUSAN application on the X-window.
There are four video images in the figure. The upper left image shows the gray-scaled