//a binary image (threshold at 128)
void CVHW::binary(cv::Mat& t_image, int threshold)
{
int m = t_image.rows;
int n = t_image.cols;
//int a,b;
//a=b=0;
printf("binary\n");
printf("Threshold is %d\n",threshold);
for ( int i = 0 ; i<m ; i++ )
{
for ( int j = 0 ; j<n ; j++ )
{
//printf("%d ",get_pix(i,j));
if ( get_pix(t_image,i,j)>=threshold )
{
//a++;
set_pix(t_image,i,j,255);
}
else
{
//b++;
set_pix(t_image,i,j,0);
}
}
}
//printf("%d,%d\n",a,b);
}
void CVHW::mark_centroid ( cv::Mat& t_image, int x, int y ,int r )
{
int mv[4][2] = { -1,0,0,1,1,0,0,-1};
for ( int i = 0 ; i<4 ; i++ )
{
set_pix(t_image,x,y,GRAY);
for ( int j = 1 ; j<r ; j++ )
{
set_pix(t_image,x+mv[i][0]*j,y+mv[i][1]*j,GRAY);
}
}
}
static void draw_center_point2(int x, int y, int rr, int gg, int bb)
{
int r, c, o, o1;
// Skip drawing the point if is so close to the border
// that we cannot draw a 10x10 dot
if (x > (UP_W - 5) || x < 5 || y > (UP_H - 5) || y < 5)
{
return;
}
// Draw the blue center point
for (r = y - 5; r < y + 5; r++)
{
//o = r * WIDTH * 4;
for (c = x - 5; c < x + 5; c++)
{
// Calculate pixel offet
o = r * UP_W + c;
assert(o < UP_S);
o1 = o * CHANNELS;
set_pix(o1, rr, gg, bb);
}
}
}
void
ProxySurface::apply_xform()
{
if(!_patch)
return;
// apply the transform to the vertices of the proxy mesh
assert(_proxy_mesh);
PIXEL o = _patch->get_old_sample_center();
PIXEL n = _patch->get_sample_center();
VEXEL z = _patch->get_z();
CBvert_list& verts = _proxy_mesh->verts(); // vertices of the proxy mesh
PIXEL_list pixels = get_pixels(verts, this); // their old pixel locations
// compute and apply the transform to each vertex:
for (int i=0; i<verts.num(); i++) {
set_pix(verts[i], this, n + cmult(pixels[i] - o, z));
}
//cache _uv_orig, _uv_u_pt, _uv_v_pt so that we can grow new quads
_o = n + cmult(_o - o, z);
_u_o = n + cmult(_u_o - o, z);
_v_o = n + cmult(_v_o - o, z);
// take care of bizness:
_proxy_mesh->changed(); //BMESH::VERT_POSITIONS_CHANGED
}
void CVHW::draw_connected_components ( cv::Mat& t_image, BOUNDING_BOX& box )
{
for ( int i = box.top_left_x ; i<=box.bottom_right_x ; i++ ) // draw |
{
set_pix(t_image,i,box.top_left_y,GRAY);
set_pix(t_image,i,box.bottom_right_y,GRAY);
}
for ( int i = box.top_left_y ; i<= box.bottom_right_y ; i++ )
{
set_pix(t_image,box.top_left_x,i,GRAY);
set_pix(t_image,box.bottom_right_x,i,GRAY);
}
mark_centroid(t_image,box.centroid_x,box.centroid_y,4);
}
static void upscale_image()
{
int x, y, o, no;
unsigned char p;
for (y = 0; y < HEIGHT; y++)
{
for (x = 0; x < WIDTH; x++)
{
o = y * WIDTH + x;
p = read_buffer[o];
no = 2*y*UP_W + x*2;
set_pix(no, p, p, p);
set_pix(no+1, p, p, p);
set_pix(no+UP_W, p, p, p);
set_pix(no+1+UP_W, p, p, p);
}
}
}
static void draw_center_lines2()
{
int r, o, m;
// Draw the red center line vertical
m = UP_W / 2;
for (r = 0; r < UP_H; r++)
{
o = (r * UP_W + m) * CHANNELS;
//set_pixel_value_at_off(get_pixel_offset(o), 255, 0, 0);
set_pix(o, 255, 0, 0);
}
// Draw the red center line horizontal
m = UP_H / 2;
for (r = 0; r < UP_W; r++)
{
o = (m * UP_W + r) * CHANNELS;
set_pix(o, 255, 0, 0);
//set_pixel_value_at_off(get_pixel_offset(o), 255, 0, 0);
}
}
static void set_bg(uint8_t *pixel){
set_pix(pixel,framebuffer->bg_color);
}
