IPUG87_01.0, December 2010 10 Median Filter IP Core User’s Guide
The IPexpress™ tool is used to create IP and architectural modules in the Diamond or ispLEVER software. Refer to
“IP Core Generation” on page 13 for a description of how to generate the IP. The Median Filter IP core can be cus-
tomized to suit a specific application by adjusting parameters prior to core generation. Since the values of some
parameters affect the size of the resultant core, the maximum value for these parameters may be limited by the size
of the target device.
Table 3-1 provided the list of user configurable parameters for the Median Filter IP core.
Basic Options Tab
The Basic Options tab provides settings for video frame and window parameters, data width, and edge mode
options.
Note: Median Filter core version 1.0 does not support dynamic frame size updating and dynamic region selecting.
Figure 3-1 shows the contents of the Basic Options tab.
Table 3-1. Median Filter IP Core Parameters
Parameter Range Default
Data width 4 - 24 8
Video frame width 100 - 1200 320
Video frame height 100 - 1200 240
Dynamic frame size updating 0 or 1 0
Dynamic region selecting 0 or 1 0
Horizontal coordinates of first active pixel 0 – (VWIDTH-1) 0
Vertical coordinates of first active pixel 0 – (VHEIGHT-1) 0
Active region width 1 – (VWIDTH-UPLEFTX-1) VWIDTH-1
Active region height 1 – (VHEIGHT-UPLEFTY-1) VHEIGHT-1
Window width and height 3x3, 5x5, 7x7 3x3
Edge mode VALUE, COPY, MIRROR VALUE
Edge value 0 – (1<<DWIDTH)-1 0
Tags width 0 0
Internal regs data bus width 8, 16, 32, 64 8
Input buffer type EBR, Distributed EBR
Chapter 3:
Parameter Settings
