f1二值化图像坐标提取问题

千里故人稀 · 发表于 2019-8-3 16:34:05

void OV7725_camera_refresh(void)
{
u32 i,j;
  u16 color;
if(ov_sta)//ÓÐÖ¡ÖÐ¶Ï¸üÐÂ
{
  LCD_Scan_Dir(U2D_L2R);  //´ÓÉÏµ½ÏÂ,´Ó×óµ½ÓÒ
  LCD_Set_Window((lcddev.width-OV7725_WINDOW_WIDTH)/2,(lcddev.height-OV7725_WINDOW_HEIGHT)/2,OV7725_WINDOW_WIDTH,OV7725_WINDOW_HEIGHT);//½«ÏÔÊ¾ÇøÓòÉèÖÃµ½ÆÁÄ»ÖÐÑë
  if(lcddev.id==0X1963)
LCD_Set_Window((lcddev.width-OV7725_WINDOW_WIDTH)/2,(lcddev.height-OV7725_WINDOW_HEIGHT)/2,OV7725_WINDOW_HEIGHT,OV7725_WINDOW_WIDTH);//½«ÏÔÊ¾ÇøÓòÉèÖÃµ½ÆÁÄ»ÖÐÑë
  LCD_WriteRAM_Prepare();    //¿ªÊ¼Ð´ÈëGRAM
  OV7725_RRST=0; //¿ªÊ¼¸´Î»¶ÁÖ¸Õë
  OV7725_RCK_L;
  OV7725_RCK_H;
  OV7725_RCK_L;
  OV7725_RRST=1; //¸´Î»¶ÁÖ¸Õë½áÊø
  OV7725_RCK_H;
  for(i=0;i<OV7725_WINDOW_HEIGHT;i++)
  {
for(j=0;j<OV7725_WINDOW_WIDTH;j++)
{
OV7725_RCK_L;
color=GPIOC->IDR&0XFF; //¶ÁÊý¾Ý
OV7725_RCK_H;
OV7725_RCK_L;
OV7725_RCK_H;

//²ÊÉ«×ª»Ò¶ÈËã·¨
   color=GRAY_2_RGB565(color);
//ºÚ°×¶þÖµ»¯
   if(color<0x3000)
   {
      color=0x0000;//ºÚÉ«
   }
   else
   {
      color=0xffff;//°×É«
   }
   if(color==0x0000)
   {
   if(i>1&&i<239&&j<319&&j>1)
      {
      //±éÀú»ñÈ¡ÂÖÀª×ø±ê
         if(i>X_MAX) X_MAX=i;
         if(i<X_MIN) X_MIN=i;


         if(j>Y_MAX) Y_MAX=j;
         if(j<Y_MIN) Y_MIN=j;
      //»ñÈ¡ÖÊÐÄ
         X=(X_MAX+X_MIN)/2;
         Y=(Y_MAX+Y_MIN)/2;

      }
   }
   //»ñÈ¡¼´ÊÓÒ°ÖÐÐÄÎ»ÖÃ
   if(j==160)
   color =0x2222;//¶ÔÊµ¼ÊÂ·¾¶¸½¼ÓÁíÍâÒ»ÖÖÑÕÉ«ÏÔÊ¾
   else
   ;
   if(i==120)
   color =0x2222;//¶ÔÊµ¼ÊÂ·¾¶¸½¼ÓÁíÍâÒ»ÖÖÑÕÉ«ÏÔÊ¾
   else
   ;
LCD->LCD_RAM=color;
}
  }
  printf("Centroid_X_MAX:%d\r\n",X_MAX); //´òÓ¡X_MAX
  printf("Centroid_X_MIN:%d\r\n",X_MIN); //´òÓ¡X_MIN

  printf("Centroid_Y_MAX:%d\r\n",Y_MAX); //´òÓ¡Y_MAX
  printf("Centroid_Y_MIN:%d\r\n",Y_MIN); //´òÓ¡Y_MIN

  printf("Centroid_X:%d\r\n",X); //´òÓ¡y
  printf("Centroid_Y:%d\r\n",Y); //´òÓ¡y
ov_sta=0;    //ÇåÁãÖ¡ÖÐ¶Ï±ê¼Ç
  ov_frame++;
  LCD_Scan_Dir(DFT_SCAN_DIR); //»Ö¸´Ä¬ÈÏÉ¨Ãè·½Ïò
}
}

为什么这样提取出的最大值，最小值和质心都是错误的