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image enhancement using fpga.

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praveenvanaparthy

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hi , this is praveen
am doing my project on image processing(enhancement).
this i want to implement on vertex2pro fpga kit .

i need some suggestions to do this .
i need source code .

please give me some suggestions
-how to read a image file into verilog/vhdl code .
- how to implement this image pixel by pixel .

my aim is 'take input image from monitor(memory card/image source), process this on fpga and show output on monitor'.
 

first of all, I suggest learning about digital logic and then start learning verilog or VHDL.
 

And after you have learned that ... I suggest learning how to write a project definition, and how to ask meaningful & specific questions. Those combined skills should get you well underway on your project. Good luck!
 

k

i am done image negative transform using matlab(S=L-1-r).
and create r.txt file .

now coming to verilog coding am try to call r.txt file into my program using
a=$fopenr('r.txt')
my image size is 128x128 (ie, ixj).
i=128, j=128.
in r.txt filr it shows pixel values from 1 to 16384 .[128*128=16384].

now my doubt is how to take pixel values into my code and how to write back into a file.
 

I assume this code is just in your testbench, as you cannot synthesise fileIO
 

yes , first i want to check it for simulation.

and is there any possible to "read direct image(.jpeg) file into verilog and process it"
without creating .txt file .
 
jpeg is compressed, so you would need verilog decompression functions. Easiest is text files with raw data, otherwise bitmap.
 

could you please give some examples for read&write text files( or bitmap) in verilog .

its important for me . please...
 

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