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IlluminationDecompose.cpp
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IlluminationDecompose.cpp
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/*
* Copyright (c) 2015-2018 Ling Zhang (lingzhang (at) whu.edu.cn) and
* Qingan Yan (yanqingan (at) whu.edu.cn &&
* yanqinganssg (at) gmail.com) and Wuhan UNiversity.
*
* This code implements the core part of paper [1].
* If you use it for your research, please cite the following paper:
*
* [1] Ling Zhang, Qingan Yan, Zheng Liu, Hua Zou and Chunxia Xiao.
* Illumination Decomposition for Photograph with Multiple Light Sources.
* IEEE Transactions on Image Processing, 2017.
*
* For more information, please move to my homepage
* https://yanqingan.github.io/ or github https://github.com/yanqingan
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include "stdafx.h"
#include <math.h>
#include <opencv.hpp>
using namespace cv;
using namespace std;
// compute sample mean value
void brush_average(int h, int w, double* avg,double* si1,double* si2,double* si3,double* brush_flag)
{
double sum_11 = 0.0, sum_12 = 0.0, sum_13 = 0.0;
double sum_21 = 0.0, sum_22 = 0.0, sum_23 = 0.0;
double sum_31 = 0.0, sum_32 = 0.0, sum_33 = 0.0;
double sum_41 = 0.0, sum_42 = 0.0, sum_43 = 0.0;
int num1 = 0, num2 = 0, num3 = 0, num4 = 0;
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
if (brush_flag[i*w+j] == 1)
{
sum_11 += si1[i*w+j];
sum_12 += si2[i*w+j];
sum_13 += si3[i*w+j];
num1++;
}
if (brush_flag[i*w+j] == 2)
{
sum_21 += si1[i*w+j];
sum_22 += si2[i*w+j];
sum_23 += si3[i*w+j];
num2++;
}
if (brush_flag[i*w+j] == 3)
{
sum_31 += si1[i*w+j];
sum_32 += si2[i*w+j];
sum_33 += si3[i*w+j];
num3++;
}
if (brush_flag[i*w+j] == 4)
{
sum_41 += si1[i*w+j];
sum_42 += si2[i*w+j];
sum_43 += si3[i*w+j];
num4++;
}
}
}
avg[0] = sum_11 / num1;
avg[1] = sum_12 / num1;
avg[2] = sum_13 / num1;
avg[3] = sum_21 / num2;
avg[4] = sum_22 / num2;
avg[5] = sum_23 / num2;
avg[6] = sum_31 / num3;
avg[7] = sum_32 / num3;
avg[8] = sum_33 / num3;
avg[9] = sum_41 / num4;
avg[10] = sum_42 / num4;
avg[11] = sum_43 / num4;
}
void caculate_order(int &num_flag1,int &num_flag2, int &num_flag3,int h, int w, int &num_order1, int &num_order2, int &num_order3,double* brush_flag,
int* order_flag1,int* order_flag2,int* order_flag3,int** flag1,int** flag2,int** flag3,int* of)
{
int t1 = 0, t2 = 1;
while (t1<t2)
{
t1 = num_flag1;
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
if (order_flag1[i*w+j] == num_order1)
{
int i_s = (i-1)<0 ? 0 : (i-1);
int i_e = (i+1)<h ? (i+1+1) : h;
int j_s = (j-1)<0 ? 0 : (j-1);
int j_e = (j+1)<w ? (j+1+1): w;
//int tt = 0;
if (of[i*w+j] == 0)
{
for (int k=i_s;k<i_e;k++)
{
for (int m=j_s;m<j_e;m++)
{
if (order_flag1[k*w+m] == -1 && of[k*w+m] == 0)
{
order_flag1[k*w+m] = num_order1+1;
num_flag1++;
//tt++;
}
}
}
}
}
}
}
t2 = num_flag1;
if (t1<t2)
{
num_order1++;
}
// cout<<"size="<<size<<" "<<num_flag1+on<<" error="<<(size-num_flag1-on)<<endl;
}
cout<<"num_order1="<<num_order1<<endl;
t1 = 0;
t2 = 1;
while (t1<t2)
{
t1 = num_flag2;
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
if (order_flag2[i*w+j] == num_order2 )
{
int i_s = (i-1)<0 ? 0 : (i-1);
int i_e = (i+1)<h ? (i+1+1) : h;
int j_s = (j-1)<0 ? 0 : (j-1);
int j_e = (j+1)<w ? (j+1+1): w;
if (of[i*w+j] == 0)
{
for (int k=i_s;k<i_e;k++)
{
for (int m=j_s;m<j_e;m++)
{
if (order_flag2[k*w+m] == -1 && of[k*w+m] == 0)
{
order_flag2[k*w+m] = num_order2+1;
num_flag2++;
}
}
}
}
}
}
}
t2 = num_flag2;
if (t1<t2)
{
num_order2++;
}
// cout<<"size="<<size<<" "<<num_flag2+on<<" error="<<(size-num_flag2-on)<<endl;
}
cout<<"num_order2="<<num_order2<<endl;
t1 = 0;
t2 = 1;
while (t1<t2)
{
t1 = num_flag3;
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
if (order_flag3[i*w+j] == num_order3 )
{
int i_s = (i-1)<0 ? 0 : (i-1);
int i_e = (i+1)<h ? (i+1+1) : h;
int j_s = (j-1)<0 ? 0 : (j-1);
int j_e = (j+1)<w ? (j+1+1): w;
if (of[i*w+j] == 0)
{
for (int k=i_s;k<i_e;k++)
{
for (int m=j_s;m<j_e;m++)
{
if (order_flag3[k*w+m] == -1 && of[k*w+m] == 0)
{
order_flag3[k*w+m] = num_order3+1;
num_flag3++;
}
}
}
}
}
}
}
t2 = num_flag3;
if (t1<t2)
{
num_order3++;
}
// cout<<"size="<<size<<" "<<num_flag2+on<<" error="<<(size-num_flag2-on)<<endl;
}
cout<<"num_order3="<<num_order3<<endl;
}
void region_label(int h, int w, IplImage* object,IplImage* shadow1, IplImage* shadow2, IplImage* shadow3, double* avg,
double** k_weight,double** k_weight2,double** k_weight3,int &num_flag1,int &num_flag2,int &num_flag3,double* si1,double* si2,double* si3,
int* order_flag1,int* order_flag2,int* order_flag3,int** flag1,int** flag2,int** flag3,int* of,double* pa)
{
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
CvScalar d = cvGet2D(object,i,j);
of[i*w+j] = 0;
if (d.val[0] > 10)
{
of[i*w+j] = 1;
}
}
}
// contributions of tree lights
double* light = new double[9];
for (int i=0;i<3;i++)
{
light[i] = avg[3+i]+avg[6+i]-avg[9+i];
light[3+i] = avg[i]+avg[6+i]-avg[9+i];
light[6+i] = avg[3+i]+avg[i]-avg[9+i];
pa[i] = avg[i]+avg[3+i]+avg[6+i]-2*avg[9+i];
cout<<light[i]<<" "<<light[3+i]<<" "<<light[6+i]<<" "<<pa[i]<<endl;
}
//cout<<light[i]<<" "<<light[3+i]<<" "<<light[6+i]<<endl;
// shadow region labeling
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
CvScalar temp1 = cvGet2D(shadow1,i,j);
CvScalar temp2 = cvGet2D(shadow2,i,j);
CvScalar temp3 = cvGet2D(shadow3,i,j);
if (temp1.val[0] > 254)
{
order_flag2[i*w+j] = 0;
flag2[i][j] = 1;
num_flag2++;
k_weight2[0][i*w+j] = light[3]*si1[i*w+j]/avg[0];
k_weight2[1][i*w+j] = light[3+1]*si2[i*w+j]/avg[1];
k_weight2[2][i*w+j] = light[3+2]*si3[i*w+j]/avg[2];
order_flag3[i*w+j] = 0;
flag3[i][j] = 1;
num_flag3++;
k_weight3[0][i*w+j] = light[6]*si1[i*w+j]/avg[0];
k_weight3[1][i*w+j] = light[6+1]*si2[i*w+j]/avg[1];
k_weight3[2][i*w+j] = light[6+2]*si3[i*w+j]/avg[2];
}
if (temp2.val[0] > 254)
{
order_flag1[i*w+j] = 0;
flag1[i][j] = 1;
num_flag1++;
k_weight[0][i*w+j] = light[0]*si1[i*w+j]/avg[3];
k_weight[1][i*w+j] = light[1]*si2[i*w+j]/avg[3+1];
k_weight[2][i*w+j] = light[2]*si3[i*w+j]/avg[3+2];
order_flag3[i*w+j] = 0;
flag3[i][j] = 1;
num_flag3++;
k_weight3[0][i*w+j] = light[6]*si1[i*w+j]/avg[3];
k_weight3[1][i*w+j] = light[6+1]*si2[i*w+j]/avg[3+1];
k_weight3[2][i*w+j] = light[6+2]*si3[i*w+j]/avg[3+2];
}
if (temp3.val[0] > 254)
{
order_flag1[i*w+j] = 0;
flag1[i][j] = 1;
num_flag1++;
k_weight[0][i*w+j] = light[0]*si1[i*w+j]/avg[6];
k_weight[1][i*w+j] = light[1]*si2[i*w+j]/avg[6+1];
k_weight[2][i*w+j] = light[2]*si3[i*w+j]/avg[6+2];
order_flag2[i*w+j] = 0;
flag2[i][j] = 1;
num_flag2++;
k_weight2[0][i*w+j] = light[3]*si1[i*w+j]/avg[6];
k_weight2[1][i*w+j] = light[3+1]*si2[i*w+j]/avg[6+1];
k_weight2[2][i*w+j] = light[3+2]*si3[i*w+j]/avg[6+2];
}
}
}
delete []light;
}
void boundary(int h, int w, IplImage* boundary_brush,double* brush_flag,int* of,int** flag1,int** flag2,int** flag3,int boundary_width)
{
IplImage* boundarymask = cvCloneImage(boundary_brush);
CvScalar b1 = cvScalarAll(255);
CvScalar b2;
b2.val[0] = 0;
b2.val[1] = 0;
b2.val[2] = 0;
int *flag = new int[h*w];
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
cvSet2D(boundarymask,i,j,b2);
if (flag1[i][j]==1 || flag2[i][j]==1 || flag3[i][j]==1)
{
flag[i*w+j] = 1;
}
else
flag[i*w+j] = 0;
}
}
int nn = 1;
while (nn < boundary_width)
{
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
if (flag[i*w+j] == nn)
{
int i_s = (i-1)<0 ? 0 : (i-1);
int i_e = (i+1)<h ? (i+1+1) : h;
int j_s = (j-1)<0 ? 0 : (j-1);
int j_e = (j+1)<w ? (j+1+1): w;
for (int k=i_s;k<i_e;k++)
{
for (int m=j_s;m<j_e;m++)
{
if (of[k*w+m] != 1 && k!= i && m!= j && flag[k*w+m] == 0)
{
brush_flag[k*w+m] = 254;
cvSet2D(boundary_brush,k,m,b1);
cvSet2D(boundarymask,k,m,b1);
flag[k*w+m] = nn+1;
}
}
}
}
}
}
nn++;
}
/*IplImage* bf = cvLoadImage("spp3.bmp");
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
CvScalar bt = cvGet2D(bf,i,j);
if (bt.val[0] == 255)
{
brush_flag[i*w+j] = 254;
cvSet2D(boundary_brush,i,j,b1);
}
}
}*/
cvSaveImage("boundarymask.bmp",boundarymask);
delete []flag;
}
// decomposition map in non-shadow region
void shadow_free_k(int h, int w,int num_order,int* order_flag,int** flag,int* of,double* brush_flag,double** k_weight,double* si1,double* si2,double* si3)
{
for (int ki=1;ki<(num_order+1);ki++)
{
// cout<<ki<<endl;
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
if (order_flag[i*w+j] == ki)
{
double zij1 = 0.0, zij2 = 0.0, zij3 = 0.0;
double sz1 = 0.0, sz2 = 0.0, sz3 = 0.0;
double sigma = 5;
if (brush_flag[i*w+j] == 254 || brush_flag[i*w+j] == 255)
{
int r1 = 4;
int i_s = (i-r1)<0 ? 0 : (i-r1);
int i_e = (i+r1)<h ? (i+r1+1) : h;
int j_s = (j-r1)<0 ? 0 : (j-r1);
int j_e = (j+r1)<w ? (j+r1+1): w;
int num_1 = 0;
double temp = 0.0;
double temp2 = 0.0;
double temp3 = 0.0;
double tidu = 0.0;
if (of[i*w+j] == 0)
{
for (int k=i_s;k<i_e;k++)
{
for (int m=j_s;m<j_e;m++)
{
if (k!=i || m!=j)
{
if (flag[k][m] != 0 && of[k*w+m]==0)
{
temp += k_weight[0][k*w+m];
temp2 += k_weight[1][k*w+m];
temp3 += k_weight[2][k*w+m];
num_1++;
}
}
}
}
k_weight[0][i*w+j] = temp/num_1;
k_weight[1][i*w+j] = temp2/num_1;
k_weight[2][i*w+j] = temp3/num_1;
flag[i][j] = 1;
}
}
else
{
int num_1 = 0;
double temp = 0.0;
double tidu = 0.0;
double temp2 = 0.0;
double tidu2 = 0.0;
double temp3 = 0.0;
double tidu3 = 0.0;
if (of[i*w+j] == 0)
{
int r1 = 4;
int i_s = (i-r1)<0 ? 0 : (i-r1);
int i_e = (i+r1)<h ? (i+r1+1) : h;
int j_s = (j-r1)<0 ? 0 : (j-r1);
int j_e = (j+r1)<w ? (j+r1+1): w;
for (int k=i_s;k<i_e;k++)
{
for (int m=j_s;m<j_e;m++)
{
if (k!=i || m!=j)
{
if (flag[k][m] != 0 && of[k*w+m]==0)
{
/*tidu = si1[i*w+j]-si1[k*w+m];
tidu = k_weight[0][k*w+m]+tidu;
tidu2 = si2[i*w+j]-si2[k*w+m];
tidu2 = k_weight[1][k*w+m]+tidu2;
tidu3 = si3[i*w+j]-si3[k*w+m];
tidu3 = k_weight[2][k*w+m]+tidu3;*/
tidu = si1[i*w+j]*k_weight[0][k*w+m]/si1[k*w+m];
tidu2 = si2[i*w+j]*k_weight[1][k*w+m]/si2[k*w+m];
tidu3 = si3[i*w+j]*k_weight[2][k*w+m]/si3[k*w+m];
zij1 = - (si1[i*w+j]-si1[k*w+m])*(si1[i*w+j]-si1[k*w+m])/(2*sigma*sigma);
zij1 = exp(zij1);
zij2 = - (si2[i*w+j]-si2[k*w+m])*(si2[i*w+j]-si2[k*w+m])/(2*sigma*sigma);
zij2 = exp(zij2);
zij3 = - (si3[i*w+j]-si3[k*w+m])*(si3[i*w+j]-si3[k*w+m])/(2*sigma*sigma);
zij3 = exp(zij3);
/*if (tidu<0 || tidu2<0 || tidu3<0)
{
break;
}*/
sz1 += zij1;
sz2 += zij2;
sz3 += zij3;
temp += zij1*tidu;
temp2 += zij2*tidu2;
temp3 += zij3*tidu3;
//cout<<tidu<<" ";
num_1++;
}
}
}
}
if (num_1>0)
{
k_weight[0][i*w+j] = temp/sz1/*num_1*/;
k_weight[1][i*w+j] = temp2/sz2/*num_1*/;
k_weight[2][i*w+j] = temp3/sz3/*num_1*/;
flag[i][j] = 1;
}
// /*k_weight[0][i*w+j] = 255;
// k_weight2[0][i*w+j] = 255;
// k_weight3[0][i*w+j] = 255;
// flag1[i][j] = 1;*/
}
}
}
}
}
}
}
void sove_initialization(IplImage* Input, double* si1,double* si2,double* si3, double* siV, double* brush_flag,
int num_light,double** k_weight,double** k_weight2,double** k_weight3,double* pa)
{
int w = Input->width;
int h = Input->height;
int size = h*w;
int** flag1 = new int*[h];
int** flag2 = new int*[h];
int** flag3 = new int*[h];
for (int i=0;i<h;i++)
{
flag1[i] = new int [w];
flag2[i] = new int [w];
flag3[i] = new int [w];
}
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
flag1[i][j] = 0;
flag2[i][j] = 0;
flag3[i][j] = 0;
}
}
double* avg = new double[12];
for (int i=0;i<12;i++)
{
avg[i] = 0.0;
}
brush_average(h, w, avg, si1, si2,si3,brush_flag);
//IplImage* bou = cvLoadImage("271pp.bmp");
IplImage* shadow1 = cvLoadImage("s2.png"); // mask of shadow1, no overlap
IplImage* shadow2 = cvLoadImage("s1.png"); // mask of shadow2, no overlap
IplImage* shadow3 = cvLoadImage("shadow1.bmp"); // mask of shadow3, no overlap
//IplImage* so = cvLoadImage("2l_self11.bmp"); // self-shadow
IplImage* object = cvLoadImage("object.bmp"); // object1
//IplImage* object1 = cvLoadImage("27_m1.bmp"); // object2
//IplImage* object2 = cvLoadImage("27_m2.bmp"); // object3
IplImage* obdilate = cvCloneImage(object);
cvDilate(object,obdilate,NULL,1);
cvSaveImage("obdi.bmp",obdilate);
IplImage* erode3 = cvCloneImage(object);
cvErode(object,erode3,NULL,2);
int* order_flag1 = new int[size];
int* order_flag2 = new int[size];
int* order_flag3 = new int[size];
int* o_flag = new int[size];
int* sf = new int[size];
for (int i=0;i<size;i++)
{
order_flag1[i] = -1;
order_flag2[i] = -1;
order_flag3[i] = -1;
sf[i] = -1;
o_flag[i] = 0;
}
int num_flag1 = 0, num_flag2 = 0, num_flag3 = 0; // how many pixels are labeled
int* of = new int[size];
region_label(h, w, object,shadow1, shadow2, shadow3, avg, k_weight,k_weight2,k_weight3,num_flag1,num_flag2,num_flag3,si1,si2,si3,
order_flag1,order_flag2,order_flag3,flag1,flag2,flag3,of,pa);
IplImage* boundary_brush = cvCloneImage(Input);
boundary(h, w, boundary_brush,brush_flag,of,flag1,flag2,flag3,7);
cvSaveImage("boundary.bmp",boundary_brush);
int num_order1 = 0, num_order2 = 0, num_order3 = 0;
caculate_order(num_flag1,num_flag2, num_flag3, h, w, num_order1, num_order2, num_order3,brush_flag,order_flag1,order_flag2,
order_flag3,flag1,flag2,flag3,of);
cout<<num_order1<<" "<<num_order2<<" "<<num_order3<<endl;
// light source estimating
shadow_free_k(h, w,num_order1,order_flag1,flag1,of,brush_flag,k_weight,si1,si2,si3);
estimate_object1(h, w,flag1,of,k_weight,si1,si2,si3);
// light source estimating
shadow_free_k(h, w,num_order2,order_flag2,flag2,of,brush_flag,k_weight2,si1,si2,si3);
estimate_object1(h, w,flag2,of,k_weight2,si1,si2,si3);
// light source estimating
shadow_free_k(h, w,num_order3,order_flag3,flag3,of,brush_flag,k_weight3,si1,si2,si3);
estimate_object1(h, w,flag3,of,k_weight3,si1,si2,si3);
IplImage* light1 = cvCreateImage(cvSize(w,h),8,3);
IplImage* light2 = cvCreateImage(cvSize(w,h),8,3);
IplImage* light3 = cvCreateImage(cvSize(w,h),8,3);
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
CvScalar temp = cvScalarAll(0.0);
temp.val[0] = k_weight[0][i*w+j];
temp.val[1] = k_weight[1][i*w+j];
temp.val[2] = k_weight[2][i*w+j];
cvSet2D(light1,i,j,temp);
temp.val[0] = k_weight2[0][i*w+j];
temp.val[1] = k_weight2[1][i*w+j];
temp.val[2] = k_weight2[2][i*w+j];
cvSet2D(light2,i,j,temp);
temp.val[0] = k_weight3[0][i*w+j];
temp.val[1] = k_weight3[1][i*w+j];
temp.val[2] = k_weight3[2][i*w+j];
cvSet2D(light3,i,j,temp);
}
}
cvSaveImage("ini_1.bmp",light1);
cvSaveImage("ini_2.bmp",light2);
cvSaveImage("ini_3.bmp",light3);
cout<<"initialization end!"<<endl;
cvReleaseImage(&light1);
cvReleaseImage(&light2);
cvReleaseImage(&light3);
for (int i=0;i<h;i++)
{
delete []flag1[i];
delete []flag2[i];
delete []flag3[i];
}
delete []order_flag1;
delete []o_flag;
delete []order_flag2;
delete []order_flag3;
delete []sf;
}
void sove_pixel(int h, int w, int i, int j,double* si1,double* si2,double* si3, double* siY,double* siV,double* brush_flag,
IplImage* brush, double** k_weight1,double** k_weight2,double** k_weight3,double lambda, double lambda1,double lambda2,double lambda3)
{
double sum_jk1 = 0.0, sum_jk2 = 0.0, sum_jk3 = 0.0;
double sum_zij1 = 0.0, sum_zij2 = 0.0, sum_zij3 = 0.0;
double sum_ij1 = 0.0, sum_ij2 = 0.0, sum_ij3 = 0.0;
double zij1 = 0.0, zij2 = 0.0, zij3 = 0.0, zij = 0.0;
double sigma = 5;
int r1 = 2;
int i_s = (i-r1)<0 ? 0 : (i-r1);
int i_e = (i+r1)<h ? (i+r1+1) : h;
int j_s = (j-r1)<0 ? 0 : (j-r1);
int j_e = (j+r1)<w ? (j+r1+1): w;
double temp1 = 0.0, temp2 = 0.0, temp3 = 0.0;
double grad1 = 0.0, grad2 = 0.0, grad3 = 0.0;
int n = 0;
for (int k=i_s;k<i_e;k++)
{
for (int m=j_s;m<j_e;m++)
{
if (k != i || m != j)
{
zij = - (siV[i*w+j]-siV[k*w+m])*(siV[i*w+j]-siV[k*w+m])/(2*sigma*sigma);
zij = exp(zij);
zij1 = - (si1[i*w+j]-si1[k*w+m])*(si1[i*w+j]-si1[k*w+m])/(2*sigma*sigma);
zij1 = exp(zij1);
zij2 = - (si2[i*w+j]-si2[k*w+m])*(si2[i*w+j]-si2[k*w+m])/(2*sigma*sigma);
zij2 = exp(zij2);
zij3 = - (si3[i*w+j]-si3[k*w+m])*(si3[i*w+j]-si3[k*w+m])/(2*sigma*sigma);
zij3 = exp(zij3);
grad1 = si1[i*w+j] - si1[k*w+m];
grad2 = si2[i*w+j] - si2[k*w+m];
grad3 = si3[i*w+j] - si3[k*w+m];
if (brush_flag[i*w+j] == 254)
{
sum_jk1 = sum_jk1 + 2 * lambda3* zij * grad1;
sum_zij1 = sum_zij1 + 2*lambda2*zij1 + + 2*lambda3*zij;
sum_ij1 = sum_zij1 + (2*lambda2*zij1 + + 2*lambda3*zij)*k_weight1[0][k*w+m];
sum_jk2 = sum_jk2 + 2 * lambda3* zij * grad2;
sum_zij2 = sum_zij2 + 2*lambda2*zij2 + + 2*lambda3*zij;
sum_ij2 = sum_zij2 + (2*lambda2*zij2 + + 2*lambda3*zij)*k_weight1[1][k*w+m];
sum_jk3 = sum_jk3 + 2 * lambda3* zij * grad3;
sum_zij3 = sum_zij3 + 2*lambda2*zij3 + + 2*lambda3*zij;
sum_ij3 = sum_zij3 + (2*lambda2*zij3 + + 2*lambda3*zij)*k_weight1[2][k*w+m];
}
else
{
sum_jk1 = sum_jk1 + 2 * lambda3* zij1 * grad1;
sum_zij1 = sum_zij1 + 2*lambda2*zij1 + + 2*lambda3*zij1;
sum_ij1 = sum_zij1 + (2*lambda2*zij1 + + 2*lambda3*zij1)*k_weight1[0][k*w+m];
sum_jk2 = sum_jk2 + 2 * lambda3* zij2 * grad2;
sum_zij2 = sum_zij2 + 2*lambda2*zij2 + + 2*lambda3*zij2;
sum_ij2 = sum_zij2 + (2*lambda2*zij2 + + 2*lambda3*zij2)*k_weight1[1][k*w+m];
sum_jk3 = sum_jk3 + 2 * lambda3* zij3 * grad3;
sum_zij3 = sum_zij3 + 2*lambda2*zij3 + + 2*lambda3*zij3;
sum_ij3 = sum_zij3 + (2*lambda2*zij3 + + 2*lambda3*zij3)*k_weight1[2][k*w+m];
}
n++;
}
}
}
if (n>0)
{
temp1 = (lambda1*si1[i*w+j]-lambda1*(k_weight2[0][i*w+j]+k_weight3[0][i*w+j])+sum_jk1+sum_ij1) / (lambda1+sum_zij1);
//cout<<temp1<<" ";
temp1 = lambda * temp1+ (1-lambda) * k_weight1[0][i*w+j];
temp2 = (lambda1*si2[i*w+j]-lambda1*(k_weight2[1][i*w+j]+k_weight3[1][i*w+j])+sum_jk2+sum_ij2) / (lambda1+sum_zij2);
//cout<<temp2<<" ";
temp2 = lambda * temp2+ (1-lambda) * k_weight1[1][i*w+j];
temp3 = (lambda1*si3[i*w+j]-lambda1*(k_weight2[2][i*w+j]+k_weight3[2][i*w+j])+sum_jk3+sum_ij3) / (lambda1+sum_zij3);
//cout<<temp3<<" ";
temp3 = lambda * temp3+ (1-lambda) * k_weight1[2][i*w+j];
k_weight1[0][i*w+j] = temp1;
k_weight1[1][i*w+j] = temp2;
k_weight1[2][i*w+j] = temp3;
}
}
void sove_with_initial(IplImage* shading, double* si1,double* si2,double* si3, double* siY,double* siV,double* brush_flag, int ntIter, int num_light, IplImage* brush,
double lambda,double** k_weight,double** k_weight2,double** k_weight3)
{
// (0, 0, 255) is 1, (0, 255, 0) is 2, (255, 0, 0) is 3, (255, 255, 0) is 4
int w = shading->width;
int h = shading->height;
int size = h*w;
//initial value
IplImage* init1 = cvLoadImage("inis_1.bmp");
IplImage* init2 = cvLoadImage("inis_2.bmp");
IplImage* init3 = cvLoadImage("inis_3.bmp");
IplImage* shadow1 = cvLoadImage("s-self1.bmp"); // corresponding to light1
IplImage* shadow2 = cvLoadImage("s-self2.bmp"); // corresponding to light2
IplImage* shadow3 = cvLoadImage("s-s3.bmp"); // corresponding to light3
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
CvScalar t1 = cvGet2D(init1,i,j);
CvScalar t2 = cvGet2D(init2,i,j);
CvScalar t3 = cvGet2D(init3,i,j);
for (int k=0;k<3;k++)
{
k_weight[k][i*w+j] = t1.val[k];
k_weight2[k][i*w+j] = t2.val[k];
k_weight3[k][i*w+j] = t3.val[k];
}
}
}
int* s_m1 = new int[size];
int* s_m2 = new int[size];
int* s_m3 = new int[size];
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
CvScalar tt = cvGet2D(shadow1,i,j);
if (tt.val[0] > 0)
{
s_m1[i*w+j] = 1;
}
else
s_m1[i*w+j] = 0;
tt = cvGet2D(shadow2,i,j);
if (tt.val[0] > 0)
{
s_m2[i*w+j] = 1;
}
else
s_m2[i*w+j] = 0;
tt = cvGet2D(shadow3,i,j);
if (tt.val[0] > 0)
{
s_m3[i*w+j] = 1;
}
else
s_m3[i*w+j] = 0;
}
}
int it=0;
double lamda1 = 0.0;
double lamda2 = 10;
double lamda3 = 0;
while (it<ntIter)
{
cout<<it<<endl;
//------------------------------------------------//
//--------- Gauss Seidel iteration ---------//
//------------------------------------------------//
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
lamda1 = 0.4;
lamda2 = 10;
if (s_m1[i*w+j]==0)
sove_pixel(h, w, i, j,si1,si2,si3, siY,siV,brush_flag,brush, k_weight,k_weight2,k_weight3,lambda, lamda1,lamda2,lamda3);
if (s_m2[i*w+j]==0)
sove_pixel(h, w, i, j,si1,si2,si3, siY,siV,brush_flag,brush,k_weight2, k_weight,k_weight3,lambda, lamda1,lamda2,lamda3);
if (s_m3[i*w+j]==0)
sove_pixel(h, w, i, j,si1,si2,si3, siY,siV,brush_flag,brush,k_weight3, k_weight,k_weight2,lambda, lamda1,lamda2,lamda3);
}
}
it++;
}
IplImage* light1 = cvCreateImage(cvSize(w,h),8,3);
IplImage* light2 = cvCreateImage(cvSize(w,h),8,3);
IplImage* light3 = cvCreateImage(cvSize(w,h),8,3);
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
CvScalar temp = cvScalarAll(0.0);
temp.val[0] = k_weight[0][i*w+j];
temp.val[1] = k_weight[1][i*w+j];
temp.val[2] = k_weight[2][i*w+j];
cvSet2D(light1,i,j,temp);
temp.val[0] = k_weight2[0][i*w+j];
temp.val[1] = k_weight2[1][i*w+j];
temp.val[2] = k_weight2[2][i*w+j];
cvSet2D(light2,i,j,temp);
temp.val[0] = k_weight3[0][i*w+j];
temp.val[1] = k_weight3[1][i*w+j];
temp.val[2] = k_weight3[2][i*w+j];
cvSet2D(light3,i,j,temp);
}
}
cvSaveImage("light1.bmp",light1);
cvSaveImage("light2.bmp",light2);
cvSaveImage("light3.bmp",light3);
delete []s_m1;
delete []s_m2;
delete []s_m3;
cvReleaseImage(&light1);
cvReleaseImage(&light2);
cvReleaseImage(&light3);
}
void addselfshadow(IplImage* Input,double* si1, double* si2, double* si3,double* pa)
{
IplImage* ini_1 = cvLoadImage("ini_12.bmp");
IplImage* ini_2 = cvLoadImage("ini_22.bmp");
IplImage* ini_3 = cvLoadImage("ini_32.bmp");
IplImage* shadow11 = cvLoadImage("2shadowmatte1.bmp"); // corresponding to light1
//IplImage* shadow12 = cvLoadImage("2l_self11.bmp");
IplImage* shadow21 = cvLoadImage("shadow2.bmp"); // corresponding to light2
//IplImage* shadow22 = cvLoadImage("27self3.bmp");
IplImage* shadow3 = cvLoadImage("2shadowmatte3.bmp"); // corresponding to light3
double sigma = 5;
int w = Input->width;
int h = Input->height;
CvScalar zero = cvScalarAll(0);
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{
CvScalar temp1 = cvGet2D(shadow11,i,j);
//CvScalar temp2 = cvGet2D(shadow12,i,j);
if (temp1.val[0] >0 /*|| temp2.val[0] > 0*/)
{
CvScalar tt = cvGet2D(ini_1,i,j);
double alpha = 0.0;
//if (temp1.val[0] >0)
//{
double t1 = temp1.val[0] - pa[0]-25;
if (t1<0)
{
t1 = 0;
}
alpha = (255-t1)/255;
//}
/*else
{
double t1 = temp2.val[0] - 70;
if (t1<0)
{
t1 = 0;
}
alpha = (255-t1)/255;
}*/
tt.val[0] = alpha*tt.val[0];
t1 = temp1.val[0] - pa[1]-25;
if (t1<0)
{
t1 = 0;
}
alpha = (255-t1)/255;
tt.val[1] = alpha*tt.val[1];
t1 = temp1.val[0] - pa[2]-25;
if (t1<0)
{
t1 = 0;
}
alpha = (255-t1)/255;
tt.val[2] = alpha*tt.val[2];
cvSet2D(ini_1, i,j,tt);
}
temp1 = cvGet2D(shadow21,i,j);
// CvScalar temp2 = cvGet2D(shadow22,i,j);
if (temp1.val[0] >0 /*|| temp2.val[0] > 0*/)
{
CvScalar tt = cvGet2D(ini_2,i,j);
double alpha = 0.0;
//if (temp1.val[0] >0)
//{
double t1 = temp1.val[0]-pa[0]-5;
if (t1<0)
{
t1 = 0;
}
alpha = (255-t1)/255;
//}
/*else
{
double t1 = temp2.val[0]-120;
if (t1<0)
{
t1 = 0;
}
alpha = (255-t1)/255;
}*/
tt.val[0] = alpha*tt.val[0];
t1 = temp1.val[0]-pa[1]-5;
if (t1<0)
{
t1 = 0;
}
alpha = (255-t1)/255;
tt.val[1] = alpha*tt.val[1];
t1 = temp1.val[0]-pa[2]-5;
if (t1<0)
{
t1 = 0;
}
alpha = (255-t1)/255;
tt.val[2] = alpha*tt.val[2];
cvSet2D(ini_2, i,j,tt);
}
temp1 = cvGet2D(shadow3,i,j);
if (temp1.val[0] >0 )
{
CvScalar tt = cvGet2D(ini_3,i,j);
double alpha = 0.0;
//{
double t1 = temp1.val[0]-pa[0]-35;
if (t1<0)
{
t1 = 0;
}
alpha = (255-t1)/255;
//}
tt.val[0] = alpha*tt.val[0];
t1 = temp1.val[0]-pa[1]-35;
if (t1<0)
{
t1 = 0;
}
alpha = (255-t1)/255;
tt.val[1] = alpha*tt.val[1];
t1 = temp1.val[0]-pa[2]-35;
if (t1<0)
{
t1 = 0;
}
alpha = (255-t1)/255;
tt.val[2] = alpha*tt.val[2];
cvSet2D(ini_3, i,j,tt);
}
}
}
cvSaveImage("inis_1.bmp",ini_1);
cvSaveImage("inis_2.bmp",ini_2);
cvSaveImage("inis_3.bmp",ini_3);
}
void addselfshadow1(IplImage* Input,double* si1, double* si2, double* si3,double* pa)
{
IplImage* ini_1 = cvLoadImage("inis_2.bmp");
IplImage* ini_2 = cvLoadImage("inis_3.bmp");
IplImage* shadow11 = cvLoadImage("2shadowmatte2.bmp"); // corresponding to light1
//IplImage* shadow12 = cvLoadImage("2l_self11.bmp");
IplImage* shadow21 = cvLoadImage("2shadowmatte4.bmp"); // corresponding to light2
//IplImage* shadow22 = cvLoadImage("27self3.bmp");
double sigma = 5;
int w = Input->width;
int h = Input->height;
CvScalar zero = cvScalarAll(0);
for (int i=0;i<h;i++)
{
for (int j=0;j<w;j++)
{