reading integer values representing an image from file

so should i change file extension to .dat instead of .txt or what??

here is my process

if (rising_edge(clk)) then

if rst = '1' then

eog_sig <= '0';

else--rst

while (col_s < starting_line_col) loop

if(NOT(endfile(testing_read))) then

READLINE(testing_read, my_line_read);

else

eog_sig <= '1';

end if;

col_s := col_s + 1;

end loop;

col_e := col_s;

while col_e < (ending_line_col+1) loop

if(NOT(endfile(testing_read))) then

READLINE(testing_read, my_line_read);

READ(my_line_read, s);

end if;

while (row_s < starting_line_row) loop

READ(my_line_read, s);

row_s := row_s + 1;

end loop;--row_s < starting_line_row

row_e := row_s;

row_s := 1;

while row_e < (ending_line_row+1) loop

READ(my_line_read, s);

row_e := row_e + 1;

x := x+s;

i := i+1;

end loop;

col_e := col_e + 1;

end loop;

results := x/i;

x := 0;

i := 1;

resultd_out <= To_StdLogicVector(results,N) ;

col_s := 1;

col_e := 1;

row_s := 1;

row_e := 1;

end if;--rst

end if;--clk

Note:

starting_line_col, starting_line_row, ending_line_col, ending_line_row are input integer values representing a rectangular area of x,y,width,height from which i select certain area to calculate its avarage

sorry for my lazy code..

execuse me cause i'm totally new in that field..

willing to write smart code next time...

thanks for your patiance..

Niveen