//Réaltisé par Shuishan WANG
// Filtre sobel.
void Image::sobel2()
{
clone1();
for(int i = 0 ; i < taille_ ; i++)
{
for(int j = 0 ; j < taille_ ; j++)
{
if(i == 0 || j == 0 || i == taille_ - 1 || j == taille_ - 1)
{
red_[i][j] = 0;
blue_[i][j] = 0;
green_[i][j] = 0;
}
red_[i][j] = (red_1[i][j]*0 +red_1[i][j-1]*0 +red_1[i][j+1]*0 +red_1[i-1][j]*2 +red_1[i-1][j+1]*1 +red_1[i-1][j-1]*1 +red_1[i+1][j-1]*-1 +red_1[i+1][j]*-2 +red_1[i+1][j+1]*-1);
green_[i][j] = (green_1[i][j]*0 +green_1[i][j-1]*0 +green_1[i][j+1]*0 +green_1[i-1][j]*2 +green_1[i-1][j+1]*1 +green_1[i-1][j-1]*1 +green_1[i+1][j-1]*-1 +green_1[i+1][j]*-2 +green_1[i+1][j+1]*-1);
blue_[i][j] = (blue_1[i][j]*0 +blue_1[i][j-1]*0 +blue_1[i][j+1]*0 +blue_1[i-1][j]*2 +blue_1[i-1][j+1]*1 +blue_1[i-1][j-1]*1 +blue_1[i+1][j-1]*-1 +blue_1[i+1][j]*-2 +blue_1[i+1][j+1]*-1);
if(red_[i][j] > 255 )red_[i][j] = 255;
if (red_[i][j] < 0)red_[i][j] = 0;
if(green_[i][j] > 255 )green_[i][j] = 255;
if (green_[i][j] < 0)green_[i][j] = 0;
if(blue_[i][j] > 255 )blue_[i][j] = 255;
if (blue_[i][j] < 0)blue_[i][j] = 0;
}
}
}
//Réaltisé par Shuishan WANG
// Filtre 1, flou.
void Image::flou()
{
clone1();
for(int i = 0 ; i < taille_ ; i++)
{
for(int j = 0 ; j < taille_ ; j++)
{
if(i == 0 || j == 0 || i == taille_ - 1 || j == taille_ - 1)
{
red_[i][j] = 0;
blue_[i][j] = 0;
green_[i][j] = 0;
}
else {
int mRouge;
int mVert;
int mBleu;
red_[i][j] = (red_1[i][j] +red_1[i][j-1] +red_1[i][j+1] +red_1[i-1][j] +red_1[i-1][j+1] +red_1[i-1][j-1] +red_1[i+1][j-1] +red_1[i+1][j] +red_1[i+1][j+1])/9;
green_[i][j] = (green_1[i][j] +green_1[i][j-1] +green_1[i][j+1] +green_1[i-1][j] +green_1[i-1][j+1] +green_1[i-1][j-1] +green_1[i+1][j-1] +green_1[i+1][j] +green_1[i+1][j+1])/9;
blue_[i][j] = (blue_1[i][j] +blue_1[i][j-1] +blue_1[i][j+1] +blue_1[i-1][j] +blue_1[i-1][j+1] +blue_1[i-1][j-1] +blue_1[i+1][j-1] +blue_1[i+1][j] +blue_1[i+1][j+1])/9;
}
}
}
}
//Réaltisé par Shuishan WANG
// Filtre sobel.
void Image::sobel3()
{
clone1();
clone2();
for(int i = 0 ; i < taille_ ; i++)
{
for(int j = 0 ; j < taille_ ; j++)
{
if(i == 0 || j == 0 || i == taille_ - 1 || j == taille_ - 1)
{
red_[i][j] = 0;
blue_[i][j] = 0;
green_[i][j] = 0;
}
else
{
red_[i][j] = (red_2[i][j]*0 +red_2[i][j-1]*0 +red_2[i][j+1]*0 +red_2[i-1][j]*2 +red_2[i-1][j+1]*1 +red_2[i-1][j-1]*1 +red_2[i+1][j-1]*-1 +red_2[i+1][j]*-2 +red_2[i+1][j+1]*-1);
green_[i][j] = (green_2[i][j]*0 +green_2[i][j-1]*0 +green_2[i][j+1]*0 +green_2[i-1][j]*2 +green_2[i-1][j+1]*1 +green_2[i-1][j-1]*1 +green_2[i+1][j-1]*-1 +green_2[i+1][j]*-2 +green_2[i+1][j+1]*-1);
blue_[i][j] = (blue_2[i][j]*0 +blue_2[i][j-1]*0 +blue_2[i][j+1]*0 +blue_2[i-1][j]*2 +blue_2[i-1][j+1]*1 +blue_2[i-1][j-1]*1 +blue_2[i+1][j-1]*-1 +blue_2[i+1][j]*-2 +blue_2[i+1][j+1]*-1);
red_[i][j] = red_[i][j]*red_[i][j];
green_[i][j] = green_[i][j]*green_[i][j];
blue_[i][j] = blue_[i][j]*blue_[i][j];
red_1[i][j] = (red_2[i][j]*0 +red_2[i][j-1]*2 +red_2[i][j+1]*-2 +red_2[i-1][j]*0 +red_2[i-1][j+1]*-1 +red_2[i-1][j-1]*1 +red_2[i+1][j-1]*1 +red_2[i+1][j]*0 +red_2[i+1][j+1]*-1);
green_1[i][j] = (green_2[i][j]*0 +green_2[i][j-1]*2 +green_2[i][j+1]*-2 +green_2[i-1][j]*0 +green_2[i-1][j+1]*-1 +green_2[i-1][j-1]*1 +green_2[i+1][j-1]*1 +green_2[i+1][j]*0 +green_2[i+1][j+1]*-1);
blue_1[i][j] = (blue_2[i][j]*0 +blue_2[i][j-1]*2 +blue_2[i][j+1]*-2 +blue_2[i-1][j]*0 +blue_2[i-1][j+1]*-1 +blue_2[i-1][j-1]*1 +blue_2[i+1][j-1]*1 +blue_2[i+1][j]*0 +blue_2[i+1][j+1]*-1);
red_1[i][j] = red_1[i][j]*red_1[i][j];
green_1[i][j] = green_1[i][j]*green_1[i][j];
blue_1[i][j] = blue_1[i][j]*blue_1[i][j];
red_[i][j] = sqrt(red_[i][j] + red_1[i][j]);
green_[i][j] = sqrt(green_[i][j] + green_1[i][j]);
blue_[i][j] = sqrt(blue_[i][j] + blue_1[i][j]);
if(red_[i][j] > 255 )red_[i][j] = 255;
if (red_[i][j] < 0)red_[i][j] = 0;
if(green_[i][j] > 255 )green_[i][j] = 255;
if (green_[i][j] < 0)green_[i][j] = 0;
if(blue_[i][j] > 255 )blue_[i][j] = 255;
if (blue_[i][j] < 0)blue_[i][j] = 0;
}
}
}
}
pid_t launch_child(int flags, child_options *chldopts, int (*fn)(void *), void *arg) {
pid_t ret;
if(chldopts->daemonize) {
ret = fork();
switch(ret) {
case 0:
/* Do some cleanup in the child */
close_fd(&(chldopts->sfd));
restore_sigmask(&(chldopts->old_sigmask));
/* Become a session leader */
if( setsid() == -1 )
errExit("setsid");
/* In the child, go on */
break;
default:
/* Parent, drop all capabilities from the permitted capability set */
drop_caps_forever();
return ret;
}
}
need_cap(CAP_SYS_ADMIN);
ret = clone1(flags);
switch(ret) {
case 0:
/* Drop all capabilities from the effective capability set */
drop_caps();
/* Do some cleanup in the child */
close_fd(&(chldopts->sfd));
restore_sigmask(&(chldopts->old_sigmask));
/* Call the function */
fn(arg);
/* The last call should not have returned */
exit(EXIT_FAILURE);
default:
if(chldopts->daemonize)
/* Parent, we exit right away */
exit(EXIT_SUCCESS);
else {
/* Parent, drop all capabilities from the permitted capability set */
drop_caps_forever();
return ret;
}
}
}
