我只是一个无情的硬盘代码搬运工~
我的电脑里资源好多呀，都是当年熬夜在实验室不要命的搞的。
想想当时，真的努力啊！现在也不差！！！就是想开学，想我的实验室…
看看文件夹吧：
其他就不一一发了，文件夹太多，慢慢分享吧！
二值化代码main.c部分（核心就在main.c）
#include "led.h"
#include "delay.h"
#include "key.h"
#include "sys.h"
#include "lcd.h"
#include "usart.h"
#include "string.h"
#include "ov7725.h"
#include "ov7670.h"
#include "tpad.h"
#include "timer.h"
#include "exti.h"
#include "usmart.h"
/************************************************
ALIENTEK战舰STM32开发板实验35
摄像头OV7725和OV7670 实验
技术支持：www.openedv.com
淘宝店铺：http://eboard.taobao.com
关注微信公众平台微信号："正点原子"，免费获取STM32资料。
广州市星翼电子科技有限公司
作者：正点原子 @ALIENTEK
************************************************/
#define OV7725 1
#define OV7670 2
//由于OV7725传感器安装方式原因,OV7725_WINDOW_WIDTH相当于LCD的高度，OV7725_WINDOW_HEIGHT相当于LCD的宽度
//注意：此宏定义只对OV7725有效
#define OV7725_WINDOW_WIDTH 320 // <=320
#define OV7725_WINDOW_HEIGHT 240 // <=240
const u8*LMODE_TBL[6]={"Auto","Sunny","Cloudy","Office","Home","Night"};//6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
u16 Binary_threshold=65535/2;/*二值化阀值*/
//更新LCD显示(OV7725)
void OV7725_camera_refresh(void)
{
u8 key;
u32 i,j;
u16 color;
if(ov_sta)//有帧中断更新
{
LCD_Scan_Dir(U2D_L2R);//从上到下,从左到右
LCD_Set_Window((lcddev.width-OV7725_WINDOW_WIDTH)/2,(lcddev.height-OV7725_WINDOW_HEIGHT)/2,OV7725_WINDOW_WIDTH,OV7725_WINDOW_HEIGHT);//将显示区域设置到屏幕中央
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);//将显示区域设置到屏幕中央
LCD_WriteRAM_Prepare(); //开始写入GRAM
OV7725_RRST=0; //开始复位读指针
OV7725_RCK_L;
OV7725_RCK_H;
OV7725_RCK_L;
OV7725_RRST=1; //复位读指针结束
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; //读数据
OV7725_RCK_H;
color<<=8;
OV7725_RCK_L;
color|=GPIOC->IDR&0XFF; //读数据
OV7725_RCK_H;
if(color>Binary_threshold)/*颜色大于阀值*/
LCD->LCD_RAM=65535; /*显示白色*/
else
LCD->LCD_RAM=0; /*颜色小于阀值 显示黑色*/
}
}
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
key=KEY_Scan(1);
if(key)
{
switch(key)
{
case KEY0_PRES: //阀值加
Binary_threshold+=300;
if(Binary_threshold>=65500) Binary_threshold=0;
break;
case KEY1_PRES: //阀值减
Binary_threshold-=300;
if(Binary_threshold<20) Binary_threshold=65500;
break;
}
}
}
}
//更新LCD显示(OV7670)
void OV7670_camera_refresh(void)
{
u32 j;
u16 color;
if(ov_sta)//有帧中断更新
{
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; //复位读指针结束
OV7670_RCK_H;
for(j=0;j<76800;j++)
{
OV7670_RCK_L;
color=GPIOC->IDR&0XFF; //读数据
OV7670_RCK_H;
color<<=8;
OV7670_RCK_L;
color|=GPIOC->IDR&0XFF; //读数据
OV7670_RCK_H;
LCD->LCD_RAM=color;
}
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
}
}
int main(void)
{
u8 key;
u8 sensor=0;
u8 i=0;
u8 msgbuf[15];//消息缓存区
u8 tm=0;
u8 lightmode=0,effect=0;
s8 saturation=0,brightness=0,contrast=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
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,"OV7725_OV7670 TEST");
LCD_ShowString(30,90,200,16,16,"ATOM@ALIENTEK");
LCD_ShowString(30,110,200,16,16,"2017/11/1");
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,"OV7725_OV7670 Init...");
while(1)//初始化OV7725_OV7670
{
if(OV7725_Init()==0)
{
sensor=OV7725;
LCD_ShowString(30,230,200,16,16,"OV7725 Init OK ");
while(1)
{
key=KEY_Scan(0);
if(key==KEY0_PRES)
{
OV7725_Window_Set(OV7725_WINDOW_WIDTH,OV7725_WINDOW_HEIGHT,0);//QVGA模式输出
break;
}
else if(key==KEY1_PRES)
{
OV7725_Window_Set(OV7725_WINDOW_WIDTH,OV7725_WINDOW_HEIGHT,1);//VGA模式输出
break;
}
i++;
if(i==100)LCD_ShowString(30,250,210,16,16,"KEY0:QVGA KEY1:VGA"); //闪烁显示提示信息
if(i==200)
{
LCD_Fill(30,250,210,250+16,WHITE);
i=0;
}
delay_ms(5);
}
OV7725_Light_Mode(lightmode);
OV7725_Color_Saturation(saturation);
OV7725_Brightness(brightness);
OV7725_Contrast(contrast);
OV7725_Special_Effects(effect);
OV7725_CS=0;
break;
}
else if(OV7670_Init()==0)
{
sensor=OV7670;
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);
OV7670_Window_Set(12,176,240,320);//设置窗口
OV7670_CS=0;
break;
}
else
{
LCD_ShowString(30,230,200,16,16,"OV7725_OV7670 Error!!");
delay_ms(200);
LCD_Fill(30,230,239,246,WHITE);
delay_ms(200);
}
}
TIM6_Int_Init(10000,7199); //10Khz计数频率,1秒钟中断
EXTI8_Init(); //使能定时器捕获
LCD_Clear(BLACK);
while(1)
{
if(sensor==OV7725)
OV7725_camera_refresh();//更新显示
else if(sensor==OV7670)
OV7670_camera_refresh();//更新显示
i++;
if(i>=15)//DS0闪烁.
{
i=0;
LED0=!LED0;
}
}
}
其实你们理解一下，原理很简单的，就是把大于某值的全为255，小于的全为0。只不过阈值你们得自己去调整。
不同阈值对应不同光照啥的。
