Hello friends.....i am trying to do image processing using DE2 board in verilog hdl and i had written the code...but i got stucked at taking image as input and to load it into the memory on the board..... Gupta

You should post more information in order to allow the community helping you. What do you mean by "got stucked"? Where exactly is the problem?

What is your video capture device? it's a terasic camera?

i am not capturing any image for my project and i am just taking already captured image...i have an idea of taking image by LUT register or by using SD ram...do u have any idea regarding these methods??...anyways thanks for ur reply and interest

i got stucked means...i dont have any knowledge regarding image processing using FPGA...i wrote code to process image after taking it as input....i dont know how to connect image inout to my code

Try with a .mif file related to a lpm_rom megafunction. In this file you should include the image contents, organized, i.e, by rows. This matlab function takes a matlab vector var and creates a .mif file of depth cells and width bits each one. function miffile(filename,var,width,depth) fh=fopen(strcat(filename,'.mif'),'w+'); fprintf(fh,'WIDTH=%d;\r\n',width); fprintf(fh,'DEPTH=%d;\r\n',depth); fprintf(fh,'ADDRESS_RADIX=DEC;\r\n'); fprintf(fh,'DATA_RADIX=DEC;\r\n'); fprintf(fh,'CONTENT BEGIN\r\n'); for k=1:length(var) fprintf(fh,strcat(num2str(k-1),':',num2str(var(k)),';\n')); end fprintf(fh,'END;\r\n'); fclose(fh); Matlab stores the image as a matrix, you should resize it as a vector. in order to read the ROM include two counters, index_column and index_row. index_rom=index_row*(columns_per_row) + index_column

Taking image as input | Altera Community

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Altera_Forum
Honored Contributor
17 years ago
Hello.....i had a problem with my quartus II software...i think all features are not available for my software.....when i am creating altsyncram megafunction i didnt fine it in my dialog box....i am really poor in creating megafunctions...can u please tell me the steps i need to follow....

can i take input to my code as hexadecimal using this megafunction...because i wrote my code with inputs as hexadecimal values

Regards,

Gupta...
Altera_Forum
Honored Contributor
17 years ago
1) double-click in a free area of your bdf file where you want to insert the altsyncram
2) a window will open up
3) in the field "Name:" (left side of the window) write down "altsyncram" and automatically the Altsyncram symbol will appear on the right side
4) tick "launch MegaWizard plug-in" and press OK
5) follow the instructions of the wizard
6) at page 3 of 12 of the wizard select "with one read port (ROM mode)"
7) at page 10 of 12 you can select the .mif file format or the .hex format

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Taking image as input

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