diff --git a/Color/ColorBlender.sv b/Color/ColorBlender.sv
index 695ad39..9492503 100644
--- a/Color/ColorBlender.sv
+++ b/Color/ColorBlender.sv
@@ -34,7 +34,7 @@ module ColorBlender #(
   reg [2:0] state, nextState;
   reg [BUFF_SIZE - 1:0] data_cal[3];  // 用于保存运算结果，防止溢出
 
-  always @(posedge clk or posedge reset) begin
+  always @(posedge clk) begin
     if (reset) begin
       state <= READ_DATA;
     end else begin
@@ -55,7 +55,7 @@ module ColorBlender #(
   assign out_ready   = (!in_en && state == READ_DATA) ? 1 : 0;
   assign out_receive = (in_en && state == READ_DATA) ? 1 : 0;
 
-  always @(posedge clk or posedge reset) begin
+  always @(posedge clk) begin
     if (reset) begin
       // 初始化
       data_cal[0] <= 0;
diff --git a/Color/GammaCorrection2.sv b/Color/GammaCorrection2.sv
index c4e6163..b83f289 100644
--- a/Color/GammaCorrection2.sv
+++ b/Color/GammaCorrection2.sv
@@ -25,7 +25,7 @@ module GammaCorrection2 #(
 
   reg [7:0] data_cache[3];
 
-  always @(posedge clk or posedge reset) begin
+  always @(posedge clk) begin
     if (reset) state <= READ_DATA;
     else state <= nextState;
   end
@@ -41,7 +41,7 @@ module GammaCorrection2 #(
   assign out_ready   = (!in_en && state == READ_DATA) ? 1 : 0;
   assign out_receive = (in_en && state == READ_DATA) ? 1 : 0;
 
-  always @(posedge clk or posedge reset) begin
+  always @(posedge clk) begin
     if (reset) begin
       out_en <= 0;
       out_data[0] <= 0;
diff --git a/Color/GreyWorld.sv b/Color/GreyWorld.sv
new file mode 100644
index 0000000..2bf8951
--- /dev/null
+++ b/Color/GreyWorld.sv
@@ -0,0 +1,134 @@
+
+`timescale 1ns / 1ps
+
+// 三通道图像合成一个RGB图像
+module GreyWorld #(
+    parameter reg [4:0] COLOR_DEPTH = 8,
+    parameter reg [31:0] IM_SIZE = 1920 * 1080
+) (
+    input wire clk,
+    input wire reset,
+
+    input wire in_en,
+    input wire [7:0] in_data[3],  // 0:R 1:G 2:B
+    output wire out_ready,
+    output wire out_receive,
+
+    // 输出相关
+    input wire in_ready,
+    input wire in_receive,
+    output reg out_en,
+    output reg [COLOR_DEPTH - 1:0] out_data[3],
+
+    // Gain: red = 0.803881, green = 0.885894, blue = 1.594308
+    input wire enable,
+    input wire [8:0] flame_rate,
+    input wire [31:0] white_gain[3]
+);
+
+  reg [2:0] state, nextState;
+  localparam reg [2:0] READ_DATA = 0;
+  localparam reg [2:0] CALC_DATA = 1;
+  localparam reg [2:0] SEND_DATA = 2;
+
+  reg [8:0] cnt_flame;
+  reg [31:0] red_total, green_total, blue_total, r_white_gain[3];
+  reg [31:0] data_cal[3], data_cache[3];
+  reg  [31:0] cnt_pexels;
+  wire [31:0] average;
+
+  always @(posedge clk) begin
+    if (reset) state <= READ_DATA;
+    else state <= nextState;
+  end
+
+  always @(*) begin
+    case (state)
+      READ_DATA: nextState = in_en ? CALC_DATA : READ_DATA;
+      CALC_DATA: nextState = SEND_DATA;
+      SEND_DATA: nextState = in_receive ? READ_DATA : SEND_DATA;
+      default:   nextState = READ_DATA;
+    endcase
+  end
+
+  assign out_ready = (!in_en && !reset) ? 1 : 0;
+  assign out_receive = (in_en && !reset) ? 1 : 0;
+
+  assign average = ((red_total + green_total + blue_total) << 8) / (3 * IM_SIZE);
+
+  always @(posedge clk) begin
+    if (reset) begin
+      red_total <= 0;
+      green_total <= 0;
+      blue_total <= 0;
+      cnt_flame <= flame_rate;
+      cnt_pexels <= 0;
+      r_white_gain[0] <= white_gain[0];
+      r_white_gain[1] <= white_gain[1];
+      r_white_gain[2] <= white_gain[2];
+      data_cache[0] <= 0;
+      data_cache[1] <= 0;
+      data_cache[2] <= 0;
+
+      out_en <= 0;
+      out_data[0] <= 0;
+      out_data[1] <= 0;
+      out_data[2] <= 0;
+    end else begin
+      case (state)
+        READ_DATA: begin
+          if (in_en) begin
+            data_cache[0] <= {24'b0, in_data[0]};
+            data_cache[1] <= {24'b0, in_data[1]};
+            data_cache[2] <= {24'b0, in_data[2]};
+
+            if (cnt_flame == flame_rate) begin
+              red_total   <= red_total + {24'b0, in_data[0]};
+              green_total <= green_total + {24'b0, in_data[0]};
+              blue_total  <= blue_total + {24'b0, in_data[0]};
+            end
+
+            if (cnt_pexels < IM_SIZE) begin
+              cnt_pexels <= cnt_pexels + 1;
+            end else begin
+              cnt_pexels <= 0;
+              if (cnt_flame < flame_rate) cnt_flame <= cnt_flame + 1;
+              else cnt_flame <= 0;
+            end
+          end
+        end
+
+        CALC_DATA: begin
+          if (cnt_pexels >= IM_SIZE && cnt_flame == flame_rate) begin
+            r_white_gain[0] <= (average * ( IM_SIZE << 8 )) / red_total;
+            r_white_gain[1] <= (average * ( IM_SIZE << 8)) / green_total;
+            r_white_gain[2] <= (average * ( IM_SIZE << 8)) / blue_total;
+          end
+
+          data_cal[0] <= (data_cache[0] * r_white_gain[0]);
+          data_cal[1] <= (data_cache[1] * r_white_gain[1]);
+          data_cal[2] <= (data_cache[2] * r_white_gain[2]);
+        end
+
+        SEND_DATA: begin
+          if (in_ready) begin
+            out_en <= 1;
+            if (enable) begin
+              out_data[0] <= (|data_cal[0][31:16]) ? 255 : (data_cal[0] > 0 ? data_cal[0][15:8] : 0);
+              out_data[1] <= (|data_cal[1][31:16]) ? 255 : (data_cal[1] > 0 ? data_cal[1][15:8] : 0);
+              out_data[2] <= (|data_cal[2][31:16]) ? 255 : (data_cal[2] > 0 ? data_cal[2][15:8] : 0);
+            end else begin
+              out_data[0] <= data_cache[0][7:0];
+              out_data[1] <= data_cache[1][7:0];
+              out_data[2] <= data_cache[2][7:0];
+            end
+          end else out_en <= 0;
+        end
+        default: ;
+      endcase
+    end
+  end
+
+
+
+endmodule
diff --git a/Color/SaturationCorrection.sv b/Color/SaturationCorrection.sv
index 78f6722..c1c0831 100644
--- a/Color/SaturationCorrection.sv
+++ b/Color/SaturationCorrection.sv
@@ -27,7 +27,7 @@ module SaturationCorrection #(
   reg signed [31:0] data_cal[3], data_cache[3];
   wire signed [31:0] max, min, delta, value, light, saturation, alpha;
 
-  always @(posedge clk or posedge reset) begin
+  always @(posedge clk) begin
     if (reset) state <= READ_DATA;
     else state <= nextState;
   end
@@ -60,7 +60,7 @@ module SaturationCorrection #(
                     ? (65536 / saturation) - 256 : (65536 / (256 - saturation_inc)) - 256)
                     : (saturation_inc);
 
-  always @(posedge clk or posedge reset) begin
+  always @(posedge clk) begin
     if (reset) begin
       out_en <= 0;
       out_data[0] <= 0;
@@ -101,9 +101,9 @@ module SaturationCorrection #(
           if (in_ready) begin
             out_en <= 1;
             if (enable && delta != 0) begin
-              out_data[0] <= (data_cal[0] <= 65535) ? (data_cal[0] > 0 ? data_cal[0][15:8] : 0) : 255;
-              out_data[1] <= (data_cal[1] <= 65535) ? (data_cal[1] > 1 ? data_cal[1][15:8] : 1) : 255;
-              out_data[2] <= (data_cal[2] <= 65535) ? (data_cal[2] > 2 ? data_cal[2][15:8] : 2) : 255;
+              out_data[0] <= (|data_cal[0][31:16]) ? 255 : (data_cal[0] > 0 ? data_cal[0][15:8] : 0);
+              out_data[1] <= (|data_cal[1][31:16]) ? 255 : (data_cal[1] > 0 ? data_cal[1][15:8] : 0);
+              out_data[2] <= (|data_cal[2][31:16]) ? 255 : (data_cal[2] > 0 ? data_cal[2][15:8] : 0);
             end else begin
               out_data[0] <= data_cache[0][7:0];
               out_data[1] <= data_cache[1][7:0];
diff --git a/Color/WhiteBalance.sv b/Color/WhiteBalance.sv
index 5505f5e..8e3eeda 100644
--- a/Color/WhiteBalance.sv
+++ b/Color/WhiteBalance.sv
@@ -2,9 +2,11 @@
 
 // 三通道图像合成一个RGB图像
 module WhiteBalance #(
-    parameter reg [4:0] IN_DEPTH  = 12,  // 输入图像的色深
-    parameter reg [4:0] OUT_DEPTH = 8,   // 输出图像的色深
-    parameter reg [8:0] BUFF_SIZE = 32
+    parameter reg [4:0] IN_DEPTH = 12,  // 输入图像的色深
+    parameter reg [4:0] OUT_DEPTH = 8,  // 输出图像的色深
+    parameter reg [8:0] BUFF_SIZE = 32,
+    parameter reg [31:0] RAM_BEGIN_ADDR = 0,
+    parameter reg [31:0] IM_SIZE = 1920 * 1080
 ) (
     input wire clk,
     input wire reset,
@@ -17,22 +19,116 @@ module WhiteBalance #(
     // 输出相关
     input wire in_ready,
     input wire in_receive,
-    output reg out_en,
-    output reg [OUT_DEPTH - 1:0] out_data[3],
+    output wire out_en,
+    output wire [OUT_DEPTH - 1:0] out_data[3],
 
     input wire enable,
-    input wire [8:0] flame_rate
+    input wire [8:0] flame_rate,
+    input wire [31:0] white_gain[3]
 );
 
-  assign out_ready = (!reset) ? 1 : 0;
-  assign out_receive = (in_en && !reset) ? 1 : 0;
+  wire ram_read_en, ram_write_en, ram_read_ready, ram_write_ready;
+  wire [31:0] ram_read_data, ram_read_addr, ram_write_data, ram_write_addr;
+
+  reg [8:0] cnt_flame;
+  reg [31:0] cnt_in_pic, cnt_out_pic, cnt_pixels;
+  reg [31:0] red_total, green_total, blue_total;
+  reg [31:0] r_white_gain[3];
+
+  wire is_finish_cal;
+  always @(*) begin
+    if (cnt_in_pic >= IM_SIZE) is_finish_cal = 1;
+    else if (cnt_out_pic >= IM_SIZE) is_finish_cal = 0;
+    else is_finish_cal = is_finish_cal;
+  end
+
+  assign ram_read_addr = cnt_out_pic;
+  assign ram_write_addr = cnt_in_pic;
+  assign cnt_pixels = (is_finish_cal)
+                      ? IM_SIZE - cnt_out_pic + cnt_in_pic
+                      : cnt_in_pic - cnt_out_pic;
+
+  assign out_ready = (!in_en && !reset && cnt_pixels < IM_SIZE) ? 1 : 0;
+  assign out_receive = (in_en && !reset && cnt_in_pic < IM_SIZE) ? 1 : 0;
 
   DiffWidthSyncFIFO #(
+      .DATA_WIDTH (8),
+      .DATA_DEPTH (12),
+      .READ_DEPTH (4),
+      .WRITE_DEPTH(3)
+  ) in_fifo (
+      .clk(clk),
+      .reset(reset),
+      .read_ready(ram_write_ready),
+      .read_en(ram_write_en),
+      .read_data(ram_write_data),
+      .write_ready(in_ready),
+      .write_en(in_en),
+      .write_data(in_data)
+  );
 
-  )
+  DiffWidthSyncFIFO #(
+      .DATA_WIDTH (8),
+      .DATA_DEPTH (12),
+      .READ_DEPTH (3),
+      .WRITE_DEPTH(4)
+  ) out_fifo (
+      .clk(clk),
+      .reset(reset),
+      .read_ready(out_ready),
+      .read_en(out_en),
+      .read_data(out_data),
+      .write_ready(ram_read_ready),
+      .write_en(ram_read_en),
+      .write_data(ram_read_data)
+  );
 
+  SDRAM inst_RAM (
+      .clk(clk),
+      .read_en(ram_read_en),
+      .read_addr(ram_read_addr),
+      .read_data(ram_read_data),
+      .read_ready(ram_read_ready),
+      .write_en(ram_write_en),
+      .write_addr(ram_write_addr),
+      .write_data(ram_write_data),
+      .write_ready(ram_write_ready)
+  );
+
+  // calculate white gain
   always @(posedge clk) begin
-    if(reset) begin
+    if (reset) begin
+      red_total <= 0;
+      green_total <= 0;
+      blue_total <= 0;
+      cnt_flame <= 0;
+      cnt_in_pic <= 0;
+      r_white_gain[0] <= white_gain[0];
+      r_white_gain[1] <= white_gain[1];
+      r_white_gain[2] <= white_gain[2];
+    end else begin
+      if (in_en && cnt_pixels < IM_SIZE) begin
+        red_total   <= red_total + in_data[0];
+        green_total <= green_total + in_data[1];
+        blue_total  <= blue_total + in_data[2];
+        if (cnt_in_pic < IM_SIZE) cnt_in_pic <= cnt_in_pic + 1;
+        else cnt_in_pic <= 0;
+      end else begin
+        
+      end
+    end
+  end
+
+  // calculate out data
+  always @(posedge clk) begin
+    if (reset) begin
+      cnt_out_pic <= 0;
+    end else begin
+      if (out_ready && is_finish_cal) begin
+        out_en <= 1;
+      end else begin
+        out_en <= 0;
+      end
     end
   end
 
diff --git a/Crop/Crop.v b/Crop/Crop.sv
similarity index 79%
rename from Crop/Crop.v
rename to Crop/Crop.sv
index 173e0a6..c17d86a 100644
--- a/Crop/Crop.v
+++ b/Crop/Crop.sv
@@ -13,12 +13,12 @@ module Crop #(
     input wire in_en,
     output wire out_ready,
     output wire out_receive,
-    input wire [3 * COLOR_DEPTH - 1:0] in_data,
+    input wire [COLOR_DEPTH - 1:0] in_data[3],
 
     input wire in_ready,
     input wire in_receive,
     output reg out_en,
-    output reg [3 * COLOR_DEPTH - 1:0] out_data
+    output reg [COLOR_DEPTH - 1:0] out_data[3]
 );
   reg [1:0] state, nextState;
   localparam reg [1:0] READ_DATA = 0;
@@ -26,11 +26,11 @@ module Crop #(
   localparam reg [1:0] SEND_DATA = 2;
 
   reg [15:0] cnt_x, cnt_y;
-  reg [3 * COLOR_DEPTH - 1:0] data;
+  reg [COLOR_DEPTH - 1:0] data[3];
   wire is_valid;
 
   // 状态切换
-  always @(posedge clk or posedge reset) begin
+  always @(posedge clk) begin
     if (reset) state <= READ_DATA;
     else state <= nextState;
   end
@@ -50,19 +50,25 @@ module Crop #(
   assign is_valid = ((OFFSET_Y <= cnt_y && cnt_y <= (OFFSET_Y + OUT_HEIGHT - 1)) &&
                     (OFFSET_X <= cnt_x && cnt_x <= (OFFSET_X + OUT_WIDTH))) ? 1 : 0;
 
-  always @(posedge clk or posedge reset) begin
+  always @(posedge clk) begin
     if (reset) begin
       cnt_x <= 0;
       cnt_y <= 0;
-      data  <= 0;
+      data[0] <= 0;
+      data[1] <= 0;
+      data[2] <= 0;
 
       out_en <= 0;
-      out_data <= 0;
+      out_data[0] <= 0;
+      out_data[1] <= 0;
+      out_data[2] <= 0;
     end else begin
       case (state)
         READ_DATA: begin
           if (in_en) begin
-            data <= in_data;
+            data[0] <= in_data[0];
+            data[1] <= in_data[1];
+            data[2] <= in_data[2];
           end
         end
 
@@ -82,7 +88,9 @@ module Crop #(
         SEND_DATA: begin
           if (in_ready && !in_receive && is_valid) begin
             out_en   <= 1;
-            out_data <= data;
+            out_data[0] <= data[0];
+            out_data[1] <= data[1];
+            out_data[2] <= data[2];
           end else out_en <= 0;
         end
 
diff --git a/Demosaic/Demosaic2.sv b/Demosaic/Demosaic2.sv
index 3a35fc5..ff49849 100644
--- a/Demosaic/Demosaic2.sv
+++ b/Demosaic/Demosaic2.sv
@@ -41,7 +41,7 @@ module Demosaic2 #(
 
   // 三段状态机实现，窗口滑动，颜色计算
   // 状态切换
-  always @(posedge clk or posedge reset) begin
+  always @(posedge clk) begin
     if (reset) state <= READ_DATA;
     else state <= nextState;
   end
@@ -64,7 +64,7 @@ module Demosaic2 #(
   assign out_receive = (in_en && state == READ_DATA) ? 1 : 0;
 
   // 各状态执行的操作
-  always @(posedge clk or posedge reset) begin
+  always @(posedge clk) begin
     if (reset) begin
       // 外部输出初始化
       out_en <= 0;
diff --git a/RAM/SDRAM.v b/RAM/SDRAM.v
new file mode 100644
index 0000000..b007e81
--- /dev/null
+++ b/RAM/SDRAM.v
@@ -0,0 +1,29 @@
+module SDRAM (
+    input wire clk,
+
+    input wire read_en,
+    input wire [31:0] read_addr,
+    output wire [31:0] read_data,
+    output wire read_ready,
+
+    input wire write_en,
+    input wire [31:0] write_addr,
+    input reg [31:0] write_data,
+    output wire write_ready
+);
+  reg [31:0] ram[1920*1080];
+
+  assign read_ready = (!read_en) ? 1 : 0;
+  assign write_ready = (!write_en) ? 1 : 0;
+
+  always @(posedge clk) begin
+    if (read_en)
+      ram[read_addr] <= read_data;
+  end
+
+  always @(posedge clk) begin
+    if (write_en)
+      write_data <= ram[write_addr];
+  end
+
+endmodule
diff --git a/RAM/tb_DiffWidthSyncFIFO.v b/RAM/tb_DiffWidthSyncFIFO.sv
similarity index 100%
rename from RAM/tb_DiffWidthSyncFIFO.v
rename to RAM/tb_DiffWidthSyncFIFO.sv
diff --git a/isp.sv b/isp.sv
index 5faa106..53f520d 100644
--- a/isp.sv
+++ b/isp.sv
@@ -32,36 +32,44 @@ module isp #(
 
     // Gamma矫正，低八位为小数位
     // input wire [7:0] gamma_inverse,
-    input wire [7:0] gamma_table [256],
+    input wire [7:0] gamma_table[256],
     input wire gamma_enable,
 
+    // 白平衡
+    input wire [31:0] white_gain[3],
+    input wire [8:0] flame_rate,
+    input wire white_enable,
+
     // 饱和度校正
     input wire signed [31:0] saturation_inc,
-    input wire saturation_enable                // -256~256
+    input wire               saturation_enable  // -256~256
 );
   localparam reg [15:0] BAYER_WIDTH = IN_WIDTH - 2;
   localparam reg [15:0] BAYER_HEIGHT = IN_HEIGHT - 2;
-  // 三通道合成RGB图像
+
+  wire [COLOR_DEPTH - 1:0] w_out_data[3];
+  assign out_data = {w_out_data[2], w_out_data[1], w_out_data[0]};
+
+  // 颜色校正，并改变色深
   wire blender_en, blender_ready, blender_receive;
   wire [15:0] blender_r, blender_g, blender_b;
 
+  // 裁切图像
+  wire crop_en, crop_ready, crop_receive;  // scaler 请求数据
+  reg [COLOR_DEPTH - 1:0] crop_data[3];
+
   // Gamma矫正
   wire gamma_en, gamma_ready, gamma_receive;
   wire [COLOR_DEPTH - 1 : 0] gamma_data[3];
 
+  // 白平衡
+  wire white_en, white_ready, white_receive;
+  wire [COLOR_DEPTH - 1 : 0] white_data[3];
+
   // 饱和度校正
   wire saturation_en, saturation_ready, saturation_receive;
   wire [COLOR_DEPTH - 1 : 0] saturation_data[3];
 
-  // 任意比例缩放图像
-  wire crop_en, crop_ready, crop_receive;  // scaler 请求数据
-  reg [COLOR_DEPTH - 1:0] crop_data[3];
-
-  // 写入RAM
-  // wire RAM_in_en;
-  // wire RAM_in_que;        // RAM 请求数据
-  // wire [3 * COLOR_DEPTH - 1:0] RAM_in_data;
-
   assign out_clk = clk;
 
   Demosaic2 #(
@@ -86,7 +94,7 @@ module isp #(
 
   ColorBlender #(
       .IN_DEPTH (12),
-      .OUT_DEPTH(8)
+      .OUT_DEPTH(COLOR_DEPTH)
   ) inst_blender (
       .clk  (clk),
       .reset(reset),
@@ -96,10 +104,10 @@ module isp #(
       .out_ready(blender_ready),
       .out_receive(blender_receive),
 
-      .in_ready(gamma_ready),
-      .in_receive(gamma_receive),
-      .out_en(gamma_en),
-      .out_data(gamma_data),
+      .in_ready(crop_ready),
+      .in_receive(crop_receive),
+      .out_en(crop_en),
+      .out_data(crop_data),
 
       .gain_red(gain_red),
       .gain_green(gain_green),
@@ -107,26 +115,26 @@ module isp #(
       .enable(blender_enable)
   );
 
-  // 计算型Gamma校正
-  //   GammaCorrection #(
-  //     .COLOR_DEPTH(COLOR_DEPTH)
-  //   ) inst_gamma (
-  //     .clk (clk),
-  //     .reset(reset),
+  Crop #(
+      .IN_WIDTH(BAYER_WIDTH),
+      .IN_HEIGHT(BAYER_HEIGHT),
+      .OUT_WIDTH(OUT_WIDTH),
+      .OUT_HEIGHT(OUT_HEIGHT),
+      .COLOR_DEPTH(COLOR_DEPTH)
+  ) inst_crop (
+      .clk  (clk),
+      .reset(reset),
 
-  //     .in_en(gamma_en),
-  //     .in_data(gamma_data),
-  //     .out_ready(gamma_ready),
-  //     .out_receive(gamma_receive),
+      .in_en(crop_en),
+      .out_ready(crop_ready),
+      .out_receive(crop_receive),
+      .in_data({crop_data[2], crop_data[1], crop_data[0]}),
 
-  //     .in_ready(crop_ready),
-  //     .in_receive(crop_receive),
-  //     .out_en(crop_en),
-  //     .out_data(crop_data),
-
-  //     .gamma_inverse(gamma_inverse),
-  //     .enable(gamma_enable)
-  //   );
+      .out_en(gamma_en),
+      .in_ready(gamma_ready),
+      .in_receive(gamma_receive),
+      .out_data({gamma_data[2], gamma_data[1], gamma_data[0]})
+  );
 
   // 查找表型Gamma校正
   GammaCorrection2 #(
@@ -150,57 +158,47 @@ module isp #(
   );
 
   SaturationCorrection #(
-    .COLOR_DEPTH(COLOR_DEPTH)
-  ) inst_saturation (
-    .clk (clk),
-    .reset (reset),
-
-    .in_en(saturation_en),
-    .out_ready(saturation_ready),
-    .out_receive(saturation_receive),
-    .in_data(saturation_data),
-
-    .in_ready(crop_ready),
-    .in_receive(crop_receive),
-    .out_en(crop_en),
-    .out_data(crop_data),
-
-    .saturation_inc(saturation_inc),
-    .enable(saturation_enable)
-  );
-
-  Crop #(
-      .IN_WIDTH(BAYER_WIDTH),
-      .IN_HEIGHT(BAYER_HEIGHT),
-      .OUT_WIDTH(OUT_WIDTH),
-      .OUT_HEIGHT(OUT_HEIGHT),
       .COLOR_DEPTH(COLOR_DEPTH)
-  ) inst_crop (
+  ) inst_saturation (
       .clk  (clk),
       .reset(reset),
 
-      .in_en(crop_en),
-      .out_ready(crop_ready),
-      .out_receive(crop_receive),
-      .in_data({crop_data[2], crop_data[1], crop_data[0]}),
+      .in_en(saturation_en),
+      .out_ready(saturation_ready),
+      .out_receive(saturation_receive),
+      .in_data(saturation_data),
 
-      .out_en(out_en),
-      .in_ready(in_ready),
-      .in_receive(in_receive),
-      .out_data(out_data)
+      .in_ready(white_ready),
+      .in_receive(white_receive),
+      .out_en(white_en),
+      .out_data(white_data),
+
+      .saturation_inc(saturation_inc),
+      .enable(saturation_enable)
   );
 
-  // RGB_to_RAM write_to_RAM (
-  //     .clk(clk),
-  //     .reset(reset),
+  GreyWorld #(
+      .COLOR_DEPTH(COLOR_DEPTH),
+      .IM_SIZE({16'b0, OUT_WIDTH} * {16'b0, OUT_HEIGHT})
+  ) inst_whitebalance (
+      .clk  (clk),
+      .reset(reset),
+
+      .in_en(white_en),
+      .in_data(white_data),
+      .out_ready(white_ready),
+      .out_receive(white_receive),
+
+      .in_ready(in_ready),
+      .in_receive(in_receive),
+      .out_en(out_en),
+      .out_data(w_out_data),
+
+      .enable(white_enable),
+      .flame_rate(flame_rate),
+      .white_gain(white_gain)
+  );
 
-  //     .in_en(RAM_in_en),
-  //     .in_que(RAM_in_que),
-  //     .in_data(RAM_in_data),
 
-  //     .write_que(out_que),
-  //     .write_en(out_en),
-  //     .data_write(out_data)
-  // );
 
 endmodule
diff --git a/sim/Makefile b/sim/Makefile
index eabb5aa..f04bc99 100644
--- a/sim/Makefile
+++ b/sim/Makefile
@@ -32,6 +32,9 @@ VERILATOR_COVERAGE = $(VERILATOR_ROOT)/bin/verilator_coverage
 endif
 
 VERILATOR_FLAGS =
+# Specify top module
+TOP_MODULE = isp
+VERILATOR_FLAGS += --top-module $(TOP_MODULE)
 # Generate SystemC in executable form
 VERILATOR_FLAGS += -sc --exe
 # Generate makefile dependencies (not shown as complicates the Makefile)
@@ -52,12 +55,11 @@ VERILATOR_FLAGS += --threads 14
 #VERILATOR_FLAGS += --debug
 # Add this trace to get a backtrace in gdb
 #VERILATOR_FLAGS += --gdbbt
-# Specify top module
-TOP_MODULE = isp
-VERILATOR_FLAGS += -top $(TOP_MODULE)
-# Input files for Verilator
-VERILATOR_INPUT = ../isp.sv *.cpp ../Demosaic/Demosaic2.sv ../Crop/*.sv ../Color/*.sv ../RAM/*.sv
 
+# Input files for Verilator
+SOURCES := $(wildcard ../isp.sv *.cpp ../Demosaic/Demosaic2.sv ../Crop/*.sv ../Color/*.sv)
+EXCLUDES := $(wildcard ../Color/WhiteBalance.sv ../Color/GammaCorrection.sv)
+VERILATOR_INPUT := $(filter-out $(EXCLUDES), $(SOURCES))
 # Check if SC exists via a verilator call (empty if not)
 SYSTEMC_EXISTS := $(shell $(VERILATOR) --get-supported SYSTEMC)
 
diff --git a/sim/sc_main.cpp b/sim/sc_main.cpp
index 6fd179b..8a7e0f6 100644
--- a/sim/sc_main.cpp
+++ b/sim/sc_main.cpp
@@ -23,10 +23,11 @@
 
 static const uint16_t IN_WIDTH = 1936;
 static const uint16_t IN_HEIGHT = 1088;
-#define IN_SIZE (IN_WIDTH * IN_HEIGHT)
+static const uint32_t IN_SIZE = (IN_WIDTH * IN_HEIGHT);
 static const uint16_t OUT_WIDTH = 1920;
 static const uint16_t OUT_HEIGHT = 1080;
-#define OUT_SIZE (OUT_WIDTH * OUT_HEIGHT)
+static const uint32_t OUT_SIZE = (OUT_WIDTH * OUT_HEIGHT);
+static const uint32_t FLAMES = 2;
 
 // color gain for correcting color
 struct color_gain {
@@ -42,6 +43,8 @@ static const double white_radio = 0.1;
 using namespace sc_core;
 using namespace sc_dt;
 
+bool picProcess(uint32_t* image, uint16_t number);
+
 SC_MODULE(TB_ISP) {
     sc_in_clk clk;
     sc_in<bool> reset;
@@ -69,9 +72,10 @@ SC_MODULE(TB_ISP) {
     }
 
     void send_Data(void) {
-        uint16_t pos_x = 0, pos_y = 0;
+        uint16_t pos_x = 0, pos_y = 0, cnt_flame = 0;
+        bool is_finish = false;
         while (true) {
-            if (in_ready.read() && pos_y < IN_HEIGHT - 2) {
+            if (in_ready.read() && !is_finish) {
                 out_en.write(1);
 
                 printf("x=%4d, y=%4d, data=0x%04x\t", pos_x, pos_y,
@@ -85,13 +89,18 @@ SC_MODULE(TB_ISP) {
                 out_data[1].write(image[(pos_y + 1) * IN_WIDTH + pos_x]);
                 out_data[2].write(image[(pos_y + 2) * IN_WIDTH + pos_x]);
 
-                // wait(1);
-                // out_en.write(0);
-
-                if (++pos_x >= IN_WIDTH) {
+                pos_x++;
+                if (pos_x >= IN_WIDTH) {
                     pos_x = 0;
                     pos_y++;
                 }
+                if (pos_y >= IN_HEIGHT - 2) {
+                    pos_y = 0;
+                    cnt_flame++;
+                }
+                if (cnt_flame >= FLAMES) {
+                    is_finish = true;
+                }
             } else {
                 out_en.write(0);
             }
@@ -102,11 +111,11 @@ SC_MODULE(TB_ISP) {
 
     void read_Data(void) {
         is_done.write(0);
-        uint16_t pos_x = 0, pos_y = 0;
-        uint32_t last_data = 0;
-        uint32_t cnt = 0;
+        uint16_t pos_x = 0, pos_y = 0, cnt_flame = 0;
+        uint32_t last_data = 0, cnt = 0;
+        bool is_finish = false;
         while (true) {
-            if (im_en.read()) {
+            if (im_en.read() && !is_finish) {
                 out_ready.write(false);
                 out_receceive.write(true);
 
@@ -116,13 +125,21 @@ SC_MODULE(TB_ISP) {
                     pos_x = 0;
                     pos_y++;
                 }
+                if (pos_y >= OUT_HEIGHT) {
+                    pos_y = 0;
+                    picProcess(out.get(), cnt_flame);
+                    cnt_flame++;
+                }
+                if (cnt_flame >= FLAMES) {
+                    is_finish = true;
+                }
             } else {
                 out_ready.write(true);
                 out_receceive.write(false);
             }
 
             // when data didn't change some time, it end
-            if (last_data == im_data.read()) {
+            if (last_data == im_data.read() && is_finish) {
                 cnt++;
                 if (cnt >= 100000L) {
                     is_done.write(1);
@@ -138,13 +155,111 @@ SC_MODULE(TB_ISP) {
     }
 };
 
+bool picProcess(uint32_t* image, uint16_t number) {
+    uint8_t* data =
+        new uint8_t[OUT_WIDTH * OUT_HEIGHT * 3];  // RGB24格式像素数据
+
+    // software algorthms analyze
+    uint32_t red_total = 0, green_total = 0, blue_total = 0;
+    uint8_t red_max = 0, green_max = 0, blue_max = 0;
+    for (int32_t y = 0; y < OUT_HEIGHT; ++y) {
+        for (int32_t x = 0; x < OUT_WIDTH; ++x) {
+            int32_t index = (y * OUT_WIDTH + x) * 3;
+
+            uint8_t red = (image[y * OUT_WIDTH + x] & 0x00ff0000) >> 16;
+            uint8_t green = (image[y * OUT_WIDTH + x] & 0x0000ff00) >> 8;
+            uint8_t blue = (image[y * OUT_WIDTH + x] & 0x000000ff);
+
+            // Adjust gamma line
+            // red = 255 * std::pow(red / 255.0, 1 / gamma_value);
+            // green = 255 * std::pow(green / 255.0, 1 / gamma_value);
+            // blue = 255 * std::pow(blue / 255.0, 1 / gamma_value);
+
+            // Calculate white balance data
+            // red_max = std::max(red_max, red);
+            // green_max = std::max(green_max, green);
+            // blue_max = std::max(blue_max, blue);
+            // red_total += red;
+            // green_total += green;
+            // blue_total += blue;
+
+            // Adjust vibrance
+            // uint8_t max = std::max({red, green, blue});
+            // uint8_t min = std::min({red, green, blue});
+            // double delta = (max - min) / 255.0;
+            // double value = (max + min) / 255.0;
+            // if (delta != 0) {
+            //     double L = value / 2.0;
+            //     // double S = (L <= 0.5) ? delta / value : delta / (2 -
+            //     value); double S = delta / max; double alpha = 0.0; if
+            //     (saturation_inc >= 0) {
+            //         if ((saturation_inc + S) >= 1)
+            //             alpha = S;
+            //         else
+            //             alpha = 1 - saturation_inc;
+            //         alpha = 1 / alpha - 1;
+            //         red = static_cast<uchar>(red + (red - L * 255) * alpha);
+            //         green =
+            //             static_cast<uchar>(green + (green - L * 255) *
+            //             alpha);
+            //         blue = static_cast<uchar>(blue + (blue - L * 255) *
+            //         alpha);
+            //     } else {
+            //         alpha = saturation_inc;
+            //         red = static_cast<uchar>(L * 255 +
+            //                                  (red - L * 255) * (1 + alpha));
+            //         green = static_cast<uchar>(L * 255 +
+            //                                    (green - L * 255) * (1 +
+            //                                    alpha));
+            // blue = static_cast<uchar>(L * 255 +
+            //                                   (blue - L * 255) * (1 +
+            //                                   alpha));
+            //     }
+            // }
+
+            // save data
+            data[index + 0] = red;    // R
+            data[index + 1] = green;  // G
+            data[index + 2] = blue;   // B
+        }
+    }
+
+    // Adjust White Balance : Grey World Color Correction
+    // double K = static_cast<double>(red_total + green_total + blue_total) /
+    //            (3 * OUT_SIZE);
+    // white_gain.red = static_cast<double>(K * OUT_SIZE) / red_total;
+    // white_gain.green = static_cast<double>(K * OUT_SIZE) / green_total;
+    // white_gain.blue = static_cast<double>(K * OUT_SIZE) / blue_total;
+    // printf("Gain: red = %f, green = %f, blue = %f", white_gain.red,
+    //        white_gain.green, white_gain.blue);
+    // for (int32_t y = 0; y < OUT_HEIGHT; ++y) {
+    //     for (int32_t x = 0; x < OUT_WIDTH; ++x) {
+    //         int32_t index = (y * OUT_WIDTH + x) * 3;
+
+    //         data[index + 0] =
+    //             static_cast<uint8_t>(white_gain.red * data[index + 0]);
+    //         data[index + 1] =
+    //             static_cast<uint8_t>(white_gain.green * data[index + 1]);
+    //         data[index + 2] =
+    //             static_cast<uint8_t>(white_gain.blue * data[index + 2]);
+    //     }
+    // }
+
+    // save to bmp
+    std::cout << "Ready to save raw RGB image" << std::endl;
+    char file_name[64] = {0};
+    snprintf(file_name, sizeof(file_name), "pic_%d.bmp", number);
+    write_bmp(file_name, data, OUT_WIDTH, OUT_HEIGHT);
+    delete[] data;
+
+    return true;
+}
+
 int sc_main(int argc, char* argv[]) {
     std::cout << "Get into sc_main" << std::endl;
     // Open image
     std::ifstream in_image;
-    std::ofstream out_image;
     in_image.open("./transform/test.bin", std::ios::in | std::ios::binary);
-    // out_image.open("./transform/out.bin", std::ios::out | std::ios::binary);
     if (!in_image.is_open()) {
         std::cout << "Open image fail" << std::endl;
         exit(0);
@@ -218,6 +333,10 @@ int sc_main(int argc, char* argv[]) {
     sc_signal<uint32_t> gamma_inverse;
     sc_signal<uint32_t> gamma_table[256];
 
+    sc_signal<uint32_t> white_gain[3];
+    sc_signal<uint32_t> flame_rate;
+    sc_signal<bool> white_enable;
+
     sc_signal<bool> saturation_enable;
     sc_signal<uint32_t> saturation_increase;
 
@@ -250,6 +369,12 @@ int sc_main(int argc, char* argv[]) {
     isp->gamma_enable(gamma_enable);
     // isp->gamma_inverse(gamma_inverse);
 
+    isp->white_enable(white_enable);
+    isp->flame_rate(flame_rate);
+    isp->white_gain[0](white_gain[0]);
+    isp->white_gain[1](white_gain[1]);
+    isp->white_gain[2](white_gain[2]);
+
     isp->saturation_enable(saturation_enable);
     isp->saturation_inc(saturation_increase);
 
@@ -266,6 +391,12 @@ int sc_main(int argc, char* argv[]) {
         gamma_table[i] = (uint32_t)(255 * pow(i / 255.0, 1.0 / gamma_value));
     }
 
+    white_enable = true;
+    flame_rate = 0;
+    white_gain[0] = 255;
+    white_gain[1] = 255;
+    white_gain[2] = 255;
+
     saturation_enable = true;
     saturation_increase =
         (int32_t)((saturation_inc >= 0) ? (saturation_inc * std::pow(2, 8))
@@ -333,117 +464,6 @@ int sc_main(int argc, char* argv[]) {
         tfp = nullptr;
     }
 
-    uint8_t* data =
-        new uint8_t[OUT_WIDTH * OUT_HEIGHT * 3];  // RGB24格式像素数据
-
-    // software algorthms analyze
-    uint32_t red_total = 0, green_total = 0, blue_total = 0;
-    uint8_t red_max = 0, green_max = 0, blue_max = 0;
-    for (int32_t y = 0; y < OUT_HEIGHT; ++y) {
-        for (int32_t x = 0; x < OUT_WIDTH; ++x) {
-            int32_t index = (y * OUT_WIDTH + x) * 3;
-
-            uint8_t red = (tb_isp.out[y * OUT_WIDTH + x] & 0x00ff0000) >> 16;
-            uint8_t green = (tb_isp.out[y * OUT_WIDTH + x] & 0x0000ff00) >> 8;
-            uint8_t blue = (tb_isp.out[y * OUT_WIDTH + x] & 0x000000ff);
-
-            // Adjust gamma line
-            // red = 255 * std::pow(red / 255.0, 1 / gamma_value);
-            // green = 255 * std::pow(green / 255.0, 1 / gamma_value);
-            // blue = 255 * std::pow(blue / 255.0, 1 / gamma_value);
-
-            // Calculate white balance data
-            red_max = std::max(red_max, red);
-            green_max = std::max(green_max, green);
-            blue_max = std::max(blue_max, blue);
-            red_total += red;
-            green_total += green;
-            blue_total += blue;
-
-            // Adjust vibrance
-            // uint8_t max = std::max({red, green, blue});
-            // uint8_t min = std::min({red, green, blue});
-            // double delta = (max - min) / 255.0;
-            // double value = (max + min) / 255.0;
-            // if (delta != 0) {
-            //     double L = value / 2.0;
-            //     // double S = (L <= 0.5) ? delta / value : delta / (2 -
-            //     value); double S = delta / max; double alpha = 0.0; if
-            //     (saturation_inc >= 0) {
-            //         if ((saturation_inc + S) >= 1)
-            //             alpha = S;
-            //         else
-            //             alpha = 1 - saturation_inc;
-            //         alpha = 1 / alpha - 1;
-            //         red = static_cast<uchar>(red + (red - L * 255) * alpha);
-            //         green =
-            //             static_cast<uchar>(green + (green - L * 255) *
-            //             alpha);
-            //         blue = static_cast<uchar>(blue + (blue - L * 255) *
-            //         alpha);
-            //     } else {
-            //         alpha = saturation_inc;
-            //         red = static_cast<uchar>(L * 255 +
-            //                                  (red - L * 255) * (1 + alpha));
-            //         green = static_cast<uchar>(L * 255 +
-            //                                    (green - L * 255) * (1 +
-            //                                    alpha));
-            // blue = static_cast<uchar>(L * 255 +
-            //                                   (blue - L * 255) * (1 +
-            //                                   alpha));
-            //     }
-            // }
-
-            data[index + 0] = red;    // R
-            data[index + 1] = green;  // G
-            data[index + 2] = blue;   // B
-        }
-    }
-
-    // Adjust White Balance : Grey World Color Correction
-    double K = static_cast<double>(red_total + green_total + blue_total) / (3 * OUT_SIZE);
-    white_gain.red = static_cast<double>(K * OUT_SIZE) / red_total;
-    white_gain.green = static_cast<double>(K * OUT_SIZE) / green_total;
-    white_gain.blue = static_cast<double>(K * OUT_SIZE) / blue_total;
-    printf("Gain: red = %f, green = %f, blue = %f", white_gain.red,
-           white_gain.green, white_gain.blue);
-    for (int32_t y = 0; y < OUT_HEIGHT; ++y) {
-        for (int32_t x = 0; x < OUT_WIDTH; ++x) {
-            int32_t index = (y * OUT_WIDTH + x) * 3;
-
-            data[index + 0] =
-                static_cast<uint8_t>(white_gain.red * data[index + 0]);
-            data[index + 1] =
-                static_cast<uint8_t>(white_gain.green * data[index + 1]);
-            data[index + 2] =
-                static_cast<uint8_t>(white_gain.blue * data[index + 2]);
-        }
-    }
-
-    // save to bin
-    std::cout << "Ready to save raw RGB image" << std::endl;
-    // for (int32_t y = 0; y < OUT_HEIGHT; ++y) {
-    //     for (int32_t x = 0; x < OUT_WIDTH; ++x) {
-    //         int32_t index = (y * OUT_WIDTH + x) * 3;
-
-    //         uint8_t red = data[index + 0];
-    //         uint8_t green = data[index + 1];
-    //         uint8_t blue = data[index + 2];
-
-    //         out_image.write((const char*)&red, sizeof(red));
-    //         out_image.write((const char*)&green, sizeof(green));
-    //         out_image.write((const char*)&blue, sizeof(blue));
-
-    //         printf("x=%4d, y=%4d, red=0x%02x, green=0x%02x, blue=0x%02x\n",
-    //         x,
-    //                y, red, green, blue);
-    //     }
-    // }
-
-    // save to bmp
-    write_bmp("test.bmp", data, OUT_WIDTH, OUT_HEIGHT);
-    delete[] data;
-
     // Return good completion status
     return 0;
 }