Color_Space_Conversion.rar_YCrCb color_color conversi_conversion

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Simulation pre start script to initialize % % simulink model xrgb_to_ycrcb_to_rgb.mdl % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Clean Up Workspace % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% close all; %close all open figure windows clear all; %clear all workspace variables %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Create/Open Image % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% imfile='lena_color.jpg'; %file to be opened debug=0 %0 to use file, 1or2 for test patterns %get image or debug isize=128; jsize=128; intensity=255; csize=3; if (debug==1) %colorsquares image(1:jsize,1:ceil(isize/3),1)=intensity; image(1:ceil(jsize/3),1:isize,1)=intensity; image(1:jsize,isize,1)=0; image(ceil(jsize/3)+1:ceil(jsize/3*2),1:isize,2)=intensity; image(1:jsize,ceil(isize/3)+1:ceil(isize/3*2),2)=intensity; image(1:jsize,isize,2)=0; image(ceil(jsize/3*2)+1:jsize,1:isize,3)=intensity; image(1:jsize,ceil(isize/3*2)+1:isize,3)=intensity; image(1:jsize,isize,3)=0; past=find(image>intensity); image(past)=intensity; imshow (uint8(image)); title('Original'); image=double(image); else %use image from file image=imread(imfile); imshow (uint8(image)); title('Original'); image=double(image); end %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Convert Image to Vector % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% fpga_input_red=[]; fpga_input_grn=[]; fpga_input_blu=[]; [height,width,depth]=size(image); for j= 1:height fpga_input_red=[fpga_input_red image(j,:,1)]; %concat rows into single vector fpga_input_grn=[fpga_input_grn image(j,:,2)]; %concat rows into single vector fpga_input_blu=[fpga_input_blu image(j,:,3)]; %concat rows into single vector end image_size=height*width; %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Bit Precision Control Variables % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% ZBT_addr_bits=21-2; %19 for MicroBlaze MultiMedia Board, 21 for WildCard-ii Image_bits=ceil(log(max(max(image(:,:,1))))/log(2)) %number of bits used to represent a single input image pixel c_resol=12; o_resol=Image_bits; %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Time Variables % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% System_Period=1; %input pixel sampling period System_Frequency=1/System_Period; %input pixel sampling frequency over_latency=100; %arbitrary number to ensure all data has passed through the system [null,sim_time]=size(fpga_input_red); sim_time=sim_time*2+over_latency %amount of time simulation should be run for Final_delay=56-13+1+5; %unnecessary Latency=20; %latency of read side in free running system. This is used to %automate the matrix viewer by only allowing valid data into %the frame buffers.