segment the image using VLSI code

i want to segment the two layers (2 circles)in my image. I read the image using pixel values in modelsim. Now i planned to segment the layers by comparing the pixel values. In that code i got two errors..I dnt know how to proceed and how to view output in the modelsim ...please help...

This is my code

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;
use ieee.std_logic_1164.std_ulogic ;
use std.textio.all;


---- Uncomment the following library declaration if instantiating
---- any Xilinx primitives in this code.
--library UNISIM;
--use UNISIM.VComponents.all;

entity image_read is

--port(Q : out std_logic);
--type img_array_t is array(natural range <>, natural range <>) of natural;
--signal img_array : img_array_t(0 to 59, 0 to 9));

end image_read;

architecture Behavioral of image_read is

type img_array_t is array(natural range <>, natural range <>) of natural;
signal img_array : img_array_t(0 to 165, 0 to 165);
--- signal Q := "100" ;

begin

recievedata: process
file img_file : text open read_mode is "crt.txt";
variable l : line;
variable temp : natural;
--variable t : natural;
begin


for y in 0 to 165 loop

readline(img_file, l);

for x in 0 to 165 loop
read(l,temp);
img_array(x,y) <= temp;
if (temp < '60') then
img_array (x,y) <= Q ;
end if ;
end loop;
end loop;
wait;
end process;

process
file outfile : text is out "out.txt";
variable outline : line;
variable temp : natural;
begin

write(outline, temp, right, 16);

writeline(outfile, outline);


wait;
end process;
end Behavioral;



errors


# ** Error: D:/x code/loop/loop.vhd(64): near "'": syntax error
# ** Error: D:/x code/loop/loop.vhd(70): near "loop": expecting "PROCESS"


please help....