SikongJueluo
/
ISP
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

optimize the GreyWorld

This commit is contained in:
SikongJueluo 2024-07-09 21:16:39 +08:00
parent 2190150dcf
commit 2543d624d2
No known key found for this signature in database
GPG Key ID: D2D3D29A993716EA
2 changed files with 24 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
Color/GreyWorld.sv
View File

@ -32,10 +32,10 @@ module GreyWorld #(
localparam reg [2:0] SEND_DATA = 2; localparam reg [2:0] SEND_DATA = 2;
reg [8:0] cnt_flame; reg [8:0] cnt_flame;
reg [47:0] red_total, green_total, blue_total, r_white_gain[3]; 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] data_cal[3], data_cache[3];
reg [31:0] cnt_pexels; reg [31:0] cnt_pexels;
wire [47:0] average; wire [39:0] average;
always @(posedge clk) begin always @(posedge clk) begin
if (reset) state <= READ_DATA; if (reset) state <= READ_DATA;
@ -54,7 +54,7 @@ module GreyWorld #(
assign out_ready = (!in_en && state == READ_DATA && !reset) ? 1 : 0; assign out_ready = (!in_en && state == READ_DATA && !reset) ? 1 : 0;
assign out_receive = (in_en && state == READ_DATA && !reset) ? 1 : 0; assign out_receive = (in_en && state == READ_DATA && !reset) ? 1 : 0;
assign average = ((red_total + green_total + blue_total) << 8) / (3 * IM_SIZE); assign average = (({8'b0, red_total } + {8'b0, green_total } + {8'b0, blue_total }) << 8) / 3 ;
always @(posedge clk) begin always @(posedge clk) begin
if (reset) begin if (reset) begin
@ -63,9 +63,9 @@ module GreyWorld #(
blue_total <= 0; blue_total <= 0;
cnt_flame <= flame_rate; cnt_flame <= flame_rate;
cnt_pexels <= 0; cnt_pexels <= 0;
r_white_gain[0] <= {16'b0, white_gain[0] }; r_white_gain[0] <= white_gain[0];
r_white_gain[1] <= {16'b0, white_gain[1] }; r_white_gain[1] <= white_gain[1];
r_white_gain[2] <= {16'b0, white_gain[2] }; r_white_gain[2] <= white_gain[2];
data_cache[0] <= 0; data_cache[0] <= 0;
data_cache[1] <= 0; data_cache[1] <= 0;
data_cache[2] <= 0; data_cache[2] <= 0;
@ -83,9 +83,9 @@ module GreyWorld #(
data_cache[2] <= {24'b0, in_data[2]}; data_cache[2] <= {24'b0, in_data[2]};
if (cnt_flame == flame_rate) begin if (cnt_flame == flame_rate) begin
red_total <= red_total + {40'b0, in_data[0]}; red_total <= red_total + {24'b0, in_data[0]};
green_total <= green_total + {40'b0, in_data[1]}; green_total <= green_total + {24'b0, in_data[1]};
blue_total <= blue_total + {40'b0, in_data[2]}; blue_total <= blue_total + {24'b0, in_data[2]};
end end
if (cnt_pexels <= IM_SIZE) begin if (cnt_pexels <= IM_SIZE) begin
@ -100,9 +100,9 @@ module GreyWorld #(
CALC_DATA: begin CALC_DATA: begin
if (cnt_pexels >= IM_SIZE && cnt_flame == flame_rate) begin if (cnt_pexels >= IM_SIZE && cnt_flame == flame_rate) begin
r_white_gain[0] <= (average * IM_SIZE) / red_total; r_white_gain[0] <= { ( average / {8'b0, red_total } ) }[31:0];
r_white_gain[1] <= (average * IM_SIZE) / green_total; r_white_gain[1] <= { ( average / {8'b0, green_total } ) }[31:0];
r_white_gain[2] <= (average * IM_SIZE) / blue_total; r_white_gain[2] <= { ( average / {8'b0, blue_total } ) }[31:0];
end end
data_cal[0] <= (data_cache[0] * r_white_gain[0][31:0]); data_cal[0] <= (data_cache[0] * r_white_gain[0][31:0]);

17
sim/sc_main.cpp
View File

@ -38,6 +38,7 @@ struct color_gain {
static const double gamma_value = 2.2; static const double gamma_value = 2.2;
static const double saturation_inc = 0.5; static const double saturation_inc = 0.5;
static const double contrast = 1.2;
// static const double white_radio = 0.1; // static const double white_radio = 0.1;
using namespace sc_core; using namespace sc_core;
@ -217,6 +218,12 @@ bool picProcess(uint32_t* image, uint16_t number) {
// } // }
// } // }
// Contrast enhancement
// red = static_cast<uchar>(contrast * (red - 128) + 128);
// green = static_cast<uchar>(contrast * (green - 128) + 128);
// blue = static_cast<uchar>(contrast * (blue - 128) + 128);
// save data // save data
data[index + 0] = red; // R data[index + 0] = red; // R
data[index + 1] = green; // G data[index + 1] = green; // G
@ -379,16 +386,16 @@ int sc_main(int argc, char* argv[]) {
isp->saturation_inc(saturation_increase); isp->saturation_inc(saturation_increase);
blender_enable = true; // enable color correction blender_enable = true; // enable color correction
gain_red = (uint32_t)(color_gain.red * std::pow(2, 8)); gain_red = static_cast<uint32_t>(color_gain.red * std::pow(2, 8));
gain_green = (uint32_t)(color_gain.green * std::pow(2, 8)); gain_green = static_cast<uint32_t>(color_gain.green * std::pow(2, 8));
gain_blue = (uint32_t)(color_gain.blue * std::pow(2, 8)); gain_blue = static_cast<uint32_t>(color_gain.blue * std::pow(2, 8));
gamma_enable = true; gamma_enable = true;
gamma_inverse = (uint32_t)((1.0 / gamma_value) * std::pow(2, 8)); gamma_inverse = static_cast<uint32_t>((1.0 / gamma_value) * std::pow(2, 8));
for (int i = 0; i < 256; i++) { for (int i = 0; i < 256; i++) {
// calculate gamma table // calculate gamma table
isp->gamma_table[i](gamma_table[i]); isp->gamma_table[i](gamma_table[i]);
gamma_table[i] = (uint32_t)(255 * pow(i / 255.0, 1.0 / gamma_value)); gamma_table[i] = static_cast<uint32_t>(255 * pow(i / 255.0, 1.0 / gamma_value));
} }
white_enable = true; white_enable = true;