这里只是简单的像素操作，代码部分就多说了，虽然代码简单，但后期还是很多的，后面用到在进行讲解
贴代码：
像素操作（二值图片，异或操作，暗通道rgb）`timescale1ns/1ps//------------------------------------------------/*mode=1XOR;(异或图像) mode=2Black&white(二值图像) mode=3lessbright (暗通道); */moduleRGB_proc( clk, rst_n, mode, RGB_in, RGB_out, i_h_sync, i_v_sync, i_data_en, o_h_sync, o_v_sync, o_data_en); inputi_h_sync ; inputi_v_sync ; inputi_data_en; inputclk,rst_n; input [1:0] mode; input [23:0] RGB_in; //inputRGBoutput [23:0] RGB_out; //outpuRGBoutputrego_h_sync; outputrego_v_sync; outputrego_data_en; wire [7:0] R, G, B; wire [7:0] R1, G1, B1; wire [7:0] R2, G2, B2; wire [7:0] R3, G3, B3; reg [7:0] R_out, G_out, B_out; assignRGB_out= {B_out, G_out, R_out}; assignR=RGB_in[7:0]; assignG=RGB_in[15:8]; assignB=RGB_in[23:16]; assignR1=R^8'b1111_1111;assignG1=R^8'b1111_1111;assignB1=R^8'b1111_1111;assignR3= (R<'h40) ? 'd0 : R-'h40;assignG3= (G<'h40) ? 'd0 : G-'h40;assignB3= (B<'h40) ? 'd0 : B-'h40;assignR2=R; assignG2=R; assignB2=R; always@(posedgeclk, negedgerst_n)beginif (rst_n==1'b0) beginR_out<=0; G_out<=0; B_out<=0; endelseif (mode==1) beginR_out<=R1; G_out<=G1; B_out<=B1; endelseif (mode==2) beginR_out<=R2; G_out<=G2; B_out<=B2; endelseif (mode==3) beginR_out<=R3; G_out<=G3; B_out<=B3; endelsebeginR_out<=R; G_out<=G; B_out<=B; endendalways@(posedgeclkornegedgerst_n)beginif(rst_n==1'b0)begino_h_sync<=1'b0;o_v_sync<=1'b0;o_data_en<=1'b0;endelsebegino_h_sync<=i_h_sync; o_v_sync<=i_v_sync; o_data_en<=i_data_en; endendendmodule
搭建图像仿真平台使用MATLAB测试：
