CMU: Raw camera data examples?
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I'm trying to track three blobs of the same color with a single CMU
camera. The three blobs are alligned in the vertical and I'm wanting
to determine the position (just the X coordinate) of the middle blob
in relation to the other two. I need to know how to dump the
camera's raw data and extract the X coordinates of the three blobs to
then start my calculations. The manual did offer basic commands but
not enough to clear-up my confusion. Has anyone found any example
code for displaying raw camera data? If not, I'll see what damage I
can do.
camera. The three blobs are alligned in the vertical and I'm wanting
to determine the position (just the X coordinate) of the middle blob
in relation to the other two. I need to know how to dump the
camera's raw data and extract the X coordinates of the three blobs to
then start my calculations. The manual did offer basic commands but
not enough to clear-up my confusion. Has anyone found any example
code for displaying raw camera data? If not, I'll see what damage I
can do.
Comments
will only let you identify to it a color it
should track. It then tracks ONE object of
this color, and sends
back to you on RS-232 the coordinates of the
center of the colored object.
I don't think tracking 3 objects of the same
color will work. However, the CMU-Cam has
been used to provide line-tracking data, so
perhaps if the three objects are aligned in
some way it will send you the 'average' value.
You CAN dump the entire picture the CMU-Cam
gets -- but I'd think you'd want a more capable
processor than the BS2 to do that.
--- In basicstamps@yahoogroups.com, "jordanlewis2330"
<tmlewis10@h...> wrote:
> I'm trying to track three blobs of the same color with a single CMU
> camera. The three blobs are alligned in the vertical and I'm
wanting
> to determine the position (just the X coordinate) of the middle
blob
> in relation to the other two. I need to know how to dump the
> camera's raw data and extract the X coordinates of the three blobs
to
> then start my calculations. The manual did offer basic commands
but
> not enough to clear-up my confusion. Has anyone found any example
> code for displaying raw camera data? If not, I'll see what damage
I
> can do.
I think you mean you want to do a Dump Frame to get a raw picture, but
that's the hard way.
The easy way is to use Line Mode with Track Color. You will then get a
Binary Bitmap showing every pixel in the bounding box of pixels that match
the color range you are tracking. With the Binary Bitmap you can see the
distinct outline of each object.
If you do want to mess with the Dump Frame look at the source code for the
Java application that comes with the CMUcam on the CD-ROM. It shows you how
to deal with the Dump Frame " F" packet format
Thank you
Ron A. Nucci
Seattle Robotics
www.seattlerobotics.com
Message: 19
Date: Tue, 02 Mar 2004 22:26:17 -0000
From: "jordanlewis2330" <tmlewis10@h...>
Subject: CMU: Raw camera data examples?
I'm trying to track three blobs of the same color with a single CMU
camera. The three blobs are aligned in the vertical and I'm wanting
to determine the position (just the X coordinate) of the middle blob
in relation to the other two. I need to know how to dump the
camera's raw data and extract the X coordinates of the three blobs to
then start my calculations. The manual did offer basic commands but
not enough to clear-up my confusion. Has anyone found any example
code for displaying raw camera data? If not, I'll see what damage I
can do.