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An introductory exercise for video processing on the TI 67x.


The purpose of this lab is to acquaint you with the TI Image Developers Kit (IDK). The IDK contains a floating point C6711 DSP, and other hardware that enables real time video/image processing. In addition to the IDK, the video processing lab bench is equipped with an NTSC camera and a standard color computer monitor.

You will complete an introductory exercise to gain familiarity with the IDK programming environment. In the exercise, you will modify a C skeleton to horizontally flip and invert video input (black and white) from the camera. The output of your video processing algorithm will appear in the top right quadrant of the monitor.

In addition, you will analyze existing C code that implements filtering and edge detection algorithms to gain insight into IDK programming methods. The output of these "canned" algorithms, along with the unprocessed input, appears in the other quadrants of the monitor.

Finally, you will create an auto contrast function. And will also work with a color video feed and create a basic user interface, which uses the input to control some aspect of the display.

An additional goal of this lab is to give you the opportunity to discover tools for developing an original project using the IDK.

Important documentation

The following documentation will certainly prove useful:

  • The IDK User's Guide . Section 2 is the most important.
  • The IDK Video Device Drivers User's Guide . The sections on timing are not too important, but pay attention to the Display and Capture systems and have a good idea of how they work.
  • The IDK Programmer's Guide . Sections 2 and 5 are the ones needed. Section 2 is very, very important in Project Lab 2. It is also useful in understanding “streams” in project lab 1.
Other manuals may be found on TI's website by searching for TMS320C6000 IDK

Video processing - the basics

The camera on the video processing lab bench generates a video signal in NTSC format. NTSC is a standard for transmitting and displaying video that is used in television. The signal from the camera is connected to the "composite input" on the IDK board (the yellow plug). This is illustrated in Figure 2-1 on page 2-3 of the IDK User's Guide. Notice that the IDK board is actually two boards stacked on top of each other. The bottom board contains the C6711 DSP, where your image processing algorithms will run. The daughterboard is on top, it contains the hardware for interfacing with the camera input and monitor output. For future video processing projects, you may connect a video input other than the camera, such as the output from a DVD player. The output signal from the IDK is in RGB format, so that it may be displayed on a computer monitor.

At this point, a description of the essential terminology of the IDK environment is in order. The video input is first decoded and then sent to the FPGA, which resides on the daughterboard. The FPGA is responsible for video capture and for the filling of the input frame buffer (whose contents we will read). For a detailed description of the FPGA and its functionality, we advise you to read Chapter 2 of the IDK User's Guide.

Questions & Answers

how do they get the third part x = (32)5/4
kinnecy Reply
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
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I don't understand what the A with approx sign and the boxed x mean
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
I'm not sure why it wrote it the other way
I got X =-6
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
oops. ignore that.
so you not have an equal sign anywhere in the original equation?
Commplementary angles
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a perfect square v²+2v+_
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algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Embra Reply
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ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
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No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
is it 3×y ?
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J, combine like terms 7x-4y
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Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
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. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
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Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
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I'm interested in nanotube
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what is system testing?
preparation of nanomaterial
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Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
I'm interested in Nanotube
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
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how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Ece 320 spring 2004. OpenStax CNX. Aug 24, 2004 Download for free at http://cnx.org/content/col10225/1.12
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