OV7670图像采集处理+定位黑线的stm32源码 -

#include "led.h"
#include "delay.h"
#include "key.h"
#include "sys.h"
#include "lcd.h"
#include "usart.h"
#include "string.h"
#include "ov7670.h"
#include "tpad.h"
#include "timer.h"
#include "exti.h"
#include "usmart.h"
#include "dma.h"
#include "Pic_Process.h"
const u8*LMODE_TBL[5]={"Auto","Sunny","Cloudy","Office","Home"}; //5种光照模式
const u8*EFFECTS_TBL[7]={"Normal","Negative","B&W","Redish","Greenish","Bluish","Antique"}; //7种特效
extern u8 ov_sta; //在exit.c里面定义
extern u8 ov_frame; //在timer.c里面定义
//更新LCD显示
//#define SEND_BUF_SIZE 76802
//u8 SendBuff[19201]={0xff}; //发送数据缓冲区
//#define Send_Uart
void camera_refresh(void);
u8 cmd[4]={0, 255, 1, 0 };
/*---图像处理需要的外部变量---*/
extern u8 Pic_Buff[V][H];
extern u8 Black_Line[60];
extern u16 middle_dot;
extern u8 Search_Cnt; //
u16 color_r;
u16 color_g;
u16 color_b;
u16 v=0,h=0;
u16 row,col;
typedef struct{
u16 Cnt;
}Point;
Point WhitePoint;
Point BlackPoint;
int main(void)
{
u8 i,j;
u8 lightmode=0,saturation=2,brightness=2,contrast=2;
u8 effect=0;
// u8 i=0;
//u8 msgbuf[15]; //消息缓存区
// u8 tm=0;
delay_init(); //延时函数初始化
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置中断优先级分组为组2：2位抢占优先级，2位响应优先级
uart_init(115200); //串口初始化为 115200
usmart_dev.init(72); //初始化USMART
LED_Init(); //初始化与LED连接的硬件接口
KEY_Init(); //初始化按键
LCD_Init(); //初始化LCD
// MYDMA_Config(DMA1_Channel4,(u32)&USART1->DR,(u32)SendBuff,1);//DMA1通道4,外设为串口1,存储器为SendBuff,长度SEND_BUF_SIZE.
// TPAD_Init(6); //触摸按键初始化
POINT_COLOR=RED; //设置字体为红色
LCD_ShowString(30,50,200,16,16,"WarShip STM32");
LCD_ShowString(30,70,200,16,16,"OV7670 TEST");
LCD_ShowString(30,90,200,16,16,"ATOM@ALIENTEK");
LCD_ShowString(30,110,200,16,16,"2015/1/18");
LCD_ShowString(30,130,200,16,16,"KEY0:Light Mode");
LCD_ShowString(30,150,200,16,16,"KEY1:Saturation");
LCD_ShowString(30,170,200,16,16,"KEY2:Brightness");
LCD_ShowString(30,190,200,16,16,"KEY_UP:Contrast");
LCD_ShowString(30,210,200,16,16,"TPAD:Effects");
LCD_ShowString(30,230,200,16,16,"OV7670 Init...");
while(OV7670_Init())//初始化OV7670
{
LCD_ShowString(30,230,200,16,16,"OV7670 Error!!");
delay_ms(200);
LCD_Fill(30,230,239,246,WHITE);
delay_ms(200);
}
LCD_ShowString(30,230,200,16,16,"OV7670 Init OK");
delay_ms(1500);
OV7670_Light_Mode(lightmode);
OV7670_Color_Saturation(saturation);
OV7670_Brightness(brightness);
OV7670_Contrast(contrast);
OV7670_Special_Effects(effect);
TIM6_Int_Init(10000,7199); //10Khz计数频率,1秒钟中断
EXTI8_Init(); //使能定时器捕获
OV7670_Window_Set(12,176,240,320); //设置窗口
OV7670_CS=0;
LCD_Clear(BLACK);
while(1)
{
camera_refresh();//更新显示
Image_Binaryzation();
Image_Filter();
Get_Black_Line();
Black_Line_handle();
printf("pos:%d-%d\r\n",middle_dot,Search_Cnt);//打印黑线中点位置和扫描到的黑线点数
Search_Cnt=1;
middle_dot=0;
// for(j=0;j<60;j++)
// {
// printf("pos:%dH%d\r\n",Black_Line[j],j);
// }
#ifdef Send_Uart
USART_SendData(USART1, 0xff);//向串口1发送数据
while(USART_GetFlagStatus(USART1,USART_FLAG_TC)!=SET);
for(i=0;i<60;i++)
{
for(j=0;j<80;j++)
{
USART_SendData(USART1,Pic_Buff[j][i]);//向串口1发送数据
while(USART_GetFlagStatus(USART1,USART_FLAG_TC)!=SET);
}
}
#endif
}
}
/*--------读取图像程序-——----—*/
void camera_refresh(void)
{
//u32 j;
u16 color;
u8 YUV_U;
// u8 YUV_Y;
// u16 BlackPos;
if(ov_sta)//有帧中断更新？
{ //u8 i;
LCD_Scan_Dir(U2D_L2R); //从上到下,从左到右
if(lcddev.id==0X1963)LCD_Set_Window((lcddev.width-240)/2,(lcddev.height-320)/2,240,320);//将显示区域设置到屏幕中央
else if(lcddev.id==0X5510||lcddev.id==0X5310)LCD_Set_Window((lcddev.width-320)/2,(lcddev.height-240)/2,320,240);//将显示区域设置到屏幕中央
LCD_WriteRAM_Prepare(); //开始写入GRAM
OV7670_RRST=0; //开始复位读指针
OV7670_RCK_L;
OV7670_RCK_H;
OV7670_RCK_L;
OV7670_RRST=1;
OV7670_RCK_H;
for(col=0;col<240;col++)
{
if((col%4)==0)h++;
for(row=0;row<320;row++)
{
OV7670_RCK_L;
color=OV7670_DATA; //读数据
OV7670_RCK_H;
OV7670_RCK_L;
YUV_U=OV7670_DATA; //读数据
OV7670_RCK_H;
if(((col%4)==0)&&((row%4)==0))
{
v++;
Pic_Buff[v-1][h-1]=(u8)color;
}
color<<=8;
color_r = color&0xf800;
color_b = color>>11;
color >>=5;
color_g =color&0x07e0;
LCD->LCD_RAM= color_r + color_g + color_b;
}
v=0;
}
h=0;
ov_sta=0; //清零帧中断标记
ov_frame++;
LCD_Scan_Dir(DFT_SCAN_DIR); //恢复默认扫描方向
}
}

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