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Thread Subject: Xilinx System Generator - Video

Subject: Xilinx System Generator - Video

From: Stephen Archer

Date: 2 Nov, 2009 12:29:03

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Hi, can anybody suggest how I can take an image source (.avi /.jpg / usb camera) and convert it from an array ( say of size 640/480) into a stream of pixel data (pixel 0 of line 0 followed by pixel 1 of line 0 etc) ready for input to my xsg model?

Subject: Xilinx System Generator - Video

From: witek@mathworks.com

Date: 2 Nov, 2009 16:09:03

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Stephen,

Try the following procedure:
1. transpose
2. convert to vector U(:)
3. turn on frame bit using splib block
4. run through splib Unbuffer block

This will produce a pixel stream. Note though that a typical system will also include some
video blanking periods (horizontal and vertical), so you may wish to pad your original 2d image first.
Does this make sense to you?

HTH,

Witek

Stephen Archer <stephen.archer@selexgalileo.com> wrote:
> Hi, can anybody suggest how I can take an image source (.avi /.jpg / usb camera) and convert it from an array ( say of size 640/480) into a stream of pixel data (pixel 0 of line 0 followed by pixel 1 of line 0 etc) ready for input to my xsg model?

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