Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

dsp builder-Prewitt edge detector

Hello, I have to present what exactly do all of implementation of Prewitt edge detection design in Dsp-Builder. I find informations in "Edge Detection Using SOPC Builder and DSP Builder Tool Fl...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Hi pals,

I'm working in a project based in prewitt edge detector. I'll comment some aspect from this example.

1.- Edge detector has been implemented using a kernel structure by using line buffers. This structure is a datapath, and the whole incoming image is passed throught this kernel.

2.- DSP builder generates .vhd files to be called from SOPC Builder in order to integrate to your system

3.- Your system communicates with this block by using avalon FIFO ports (DMA), first you'll need to writing image bytes to the input port and reading image bytes from the ouput ports to getting the image processed.

4.- DMA is configured by using HAL API functions from NIOS II processor

I hope this helps you!!!