OV7670寄存器设置优化

2019-07-20 22:15发布

原子哥的摄像头采集到的图像模糊、 {MOD}彩不鲜艳,看起来很不爽,没有把30W体现出来。
参考了多方资料,终于找到个更好点的寄存器配置数据,分享给大家,直接替换ov7670config.h文件中的数组即可:

const u8 ov7670_init_reg_tbl[][2]= 
{   

{0x3a, 0x04},//dummy
{0x40, 0xd0},//565   
{0x12, 0x14},//QVGA,RGB

{0x32, 0x80},//HREF control bit[2:0] HREF start 3 LSB bit[5:3] HSTOP HREF end 3LSB
{0x17, 0x16},//HSTART start high 8-bit MSB         
{0x18, 0x04},//5 HSTOP end high 8-bit
{0x19, 0x02},
{0x1a, 0x7b},//0x7a,
  {0x03, 0x06},//0x0a,???ú?±·??ò????

{0x0c, 0x00},
{0x15, 0x00},//0x00
{0x3e, 0x00},//10
{0x70, 0x3a},
{0x71, 0x35},
{0x72, 0x11},
{0x73, 0x00},//
        
{0xa2, 0x02},//15
{0x11, 0x81},//
{0x7a, 0x20},
{0x7b, 0x1c},
{0x7c, 0x28},
        
{0x7d, 0x3c},//20
{0x7e, 0x55},
{0x7f, 0x68},
{0x80, 0x76},
{0x81, 0x80},
        
{0x82, 0x88},
{0x83, 0x8f},
{0x84, 0x96},
{0x85, 0xa3},
{0x86, 0xaf},
        
{0x87, 0xc4},//30
{0x88, 0xd7},
{0x89, 0xe8},
{0x13, 0xe0},
{0x00, 0x00},//AGC
        
{0x10, 0x00},
{0x0d, 0x00},//
{0x14, 0x28},//0x38, limit the max gain
{0xa5, 0x05},
{0xab, 0x07},
        
{0x24, 0x75},//40
{0x25, 0x63},
{0x26, 0xA5},
{0x9f, 0x78},
{0xa0, 0x68},
        
{0xa1, 0x03},//0x0b,
{0xa6, 0xdf},//0xd8,
{0xa7, 0xdf},//0xd8,
{0xa8, 0xf0},
{0xa9, 0x90},
        
{0xaa, 0x94},//50
{0x13, 0xe5},
{0x0e, 0x61},
{0x0f, 0x4b},
{0x16, 0x02},
        
{0x1e, 0x37},//
{0x21, 0x02},
{0x22, 0x91},
{0x29, 0x07},
{0x33, 0x0b},
        
{0x35, 0x0b},//60
{0x37, 0x1d},
{0x38, 0x71},
{0x39, 0x2a},
{0x3c, 0x78},
        
{0x4d, 0x40},
{0x4e, 0x20},
{0x69, 0x00},
{0x6b, 0x40},//PLL*4=48Mhz
{0x74, 0x19},
{0x8d, 0x4f},
        
{0x8e, 0x00},//70
{0x8f, 0x00},
{0x90, 0x00},
{0x91, 0x00},
{0x92, 0x00},//0x19,//0x66
        
{0x96, 0x00},
{0x9a, 0x80},
{0xb0, 0x84},
{0xb1, 0x0c},
{0xb2, 0x0e},
        
{0xb3, 0x82},//80
{0xb8, 0x0a},
{0x43, 0x14},
{0x44, 0xf0},
{0x45, 0x34},
        
{0x46, 0x58},
{0x47, 0x28},
{0x48, 0x3a},
{0x59, 0x88},
{0x5a, 0x88},
        
{0x5b, 0x44},//90
{0x5c, 0x67},
{0x5d, 0x49},
{0x5e, 0x0e},
{0x64, 0x04},
{0x65, 0x20},
        
{0x66, 0x05},
{0x94, 0x04},
{0x95, 0x08},
{0x6c, 0x0a},
{0x6d, 0x55},
        
        
{0x4f, 0x80},
{0x50, 0x80},
{0x51, 0x00},
{0x52, 0x22},
{0x53, 0x5e},
{0x54, 0x80},
        
//{0x54, 0x40},//110
        
        
{0x09, 0x03},//

{0x6e, 0x11},//100
{0x6f, 0x9f},//0x9e for advance AWB
  {0x55, 0x00},//
  {0x56, 0x40},//
  {0x57, 0x40},//0x40,  change according to Jim's request

{0x6a, 0x40},
{0x01, 0x40},
{0x02, 0x40},
{0x13, 0xe7},
{0x15, 0x00},  


{0x58, 0x9e},

{0x41, 0x08},
{0x3f, 0x00},
{0x75, 0x05},
{0x76, 0xe1},
{0x4c, 0x00},
{0x77, 0x01},
{0x3d, 0xc2},
{0x4b, 0x09},
{0xc9, 0x60},
{0x41, 0x38},

{0x34, 0x11},
{0x3b, 0x02}, 

{0xa4, 0x89},
{0x96, 0x00},
{0x97, 0x30},
{0x98, 0x20},
{0x99, 0x30},
{0x9a, 0x84},
{0x9b, 0x29},
{0x9c, 0x03},
{0x9d, 0x4c},
{0x9e, 0x3f},
{0x78, 0x04},

{0x79, 0x01},
{0xc8, 0xf0},
{0x79, 0x0f},
{0xc8, 0x00},
{0x79, 0x10},
{0xc8, 0x7e},
{0x79, 0x0a},
{0xc8, 0x80},
{0x79, 0x0b},
{0xc8, 0x01},
{0x79, 0x0c},
{0xc8, 0x0f},
{0x79, 0x0d},
{0xc8, 0x20},
{0x79, 0x09},
{0xc8, 0x80},
{0x79, 0x02},
{0xc8, 0xc0},
{0x79, 0x03},
{0xc8, 0x40},
{0x79, 0x05},
{0xc8, 0x30},
{0x79, 0x26}, 
{0x09, 0x00},
}; 


或者直接下载附件程序头将原来的给替换掉。


寄存器数据更改后,发现摄像头明显清晰多了,只是还有些缺陷,大家一块研究吧!


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32条回答
小小孟祥
1楼-- · 2019-07-22 07:51
必须顶一个!!!
STM32VBT6
2楼-- · 2019-07-22 10:45
 精彩回答 2  元偷偷看……
shibusha
3楼-- · 2019-07-22 14:34
 精彩回答 2  元偷偷看……
C&D
4楼-- · 2019-07-22 20:05
屌  用在我板子上  不仅 {MOD}彩好看了  而且帧率感觉有明显提升
endlesswho
5楼-- · 2019-07-23 01:43
回复【2楼】正点原子:
---------------------------------
原子哥,我用ov7670的时候测试彩带输出的结果是正常的,但是直接输出的时候颜 {MOD}就不大对了,感觉上面覆了一层膜,是什么原因来着?
正点原子
6楼-- · 2019-07-23 02:50
回复【18楼】endlesswho:
---------------------------------
上个图看看。

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