分享一個OpenMV教程，挺詳細的，新手必看。
目錄
OpenMV 內部資料.....................................................1
201705/08...........................................................1
1、OpenMV 快速參考..................................................6
1.1、OpenMV 攝像頭..............................................6
通用控制........................................................6
LED.............................................................6
引腳和GPIO .....................................................6
舵機控制........................................................7
外部中斷........................................................8
計時器..........................................................8
PWM (脈寬調制)..................................................9
ADC (模數轉換)..................................................9
DAC (數模轉換).................................................10
UART (串口)....................................................10
SPI 總線.......................................................11
I2C總線.......................................................11
2、OpenMV 教程.....................................................12
2.1、I/O 教程..................................................12
PYB模塊.......................................................12
2.2、LED 控制..................................................12
2.3、OpenMV IDE 概述...........................................13
文件菜單和示例.................................................13
文字編輯.......................................................13
連接到您的OpenMV 攝像頭........................................14
運行腳本.......................................................14
幀緩沖區查看器.................................................15
直方圖顯示.....................................................15
串口...........................................................15
狀態欄.........................................................16
工具...........................................................16
打開終端.......................................................16
機器視覺.......................................................16
2.4、硬件設置..................................................17
USB 閃存驅動器說明.............................................17
3、固件升級與更新..................................................17
3.1、更新固件..................................................17
4、基本使用........................................................21
4.1、軟件與驅動安裝............................................21
5、示例講解........................................................24
5.1、01-基本功能...............................................24
5.1.1、helloworld..........................................24
5.1.2、基本示例............................................25
5.2、02-基本驅動...............................................25
----------------------- Page 3-----------------------
5.2.1、ADC 讀取示例........................................26
5.2.2、DAC控制示例........................................26
5.2.3、IIC 從機............................................26
5.2.4、IIC 控制............................................29
5.2.5、LED控制示例........................................29
5.2.6、PWM控制示例........................................30
5.2.7、SPI 從機............................................31
5.2.8、SPI 控制............................................33
5.2.9、串口................................................35
5.2.10、定時器控制示例.....................................35
5.2.11、引腳控制實例.......................................36
5.2.12、舵機控制...........................................36
5.2.13、超頻示例...........................................37
5.3、03-繪圖...................................................37
5.3.1、圖像復制幀緩沖區....................................37
5.3.2、彩色繪制示例........................................38
5.3.3、繪制各種標識........................................39
測試繪制點.....................................................40
測試繪制線.....................................................40
測試繪制矩形...................................................41
測試繪制圓.....................................................42
測試繪制字符串.................................................42
測試繪制十字架.................................................43
測試繪制關鍵點.................................................43
5.4、04-圖像過濾器.............................................44
5.4.1、中值濾波器..........................................44
5.4.2、中點過濾器..........................................44
5.4.3、侵蝕和擴張的........................................45
5.4.4、基本圖像幀區別......................................46
5.4.5、平均過濾器..........................................47
5.4.6、彩色二進制過濾器....................................48
5.4.7、模式過濾器..........................................49
5.4.8、灰度二進制過濾器....................................50
5.4.9、灰度過濾器..........................................51
5.4.10、線性濾波...........................................52
5.4.11、邊緣檢測...........................................53
5.4.12、銳化濾鏡...........................................54
5.4.13、高級圖像幀區別.....................................55
5.5、05-拍照...................................................56
5.5.1、人臉檢測快照........................................56
5.5.2、快照................................................58
5.5.3、浮雕快照............................................59
5.5.4、移動監測快照........................................59
5.6、06-視頻錄制...............................................61
5.6.1、GIF 錄制人臉檢測....................................61
5.6.2、GIF視頻錄制示例....................................63
5.6.3、MJPEG 錄像面部檢測..................................64
5.6.4、MJPEG視頻錄制示例..................................65
5.6.5、MJPEG視頻錄制移動示例..............................66
5.6.6、視頻錄制移動示例....................................68
5.7、07-人臉識別...............................................70
5.7.1、LBP 面部識別........................................70
5.7.2、面部檢測示例........................................70
5.7.3、面部跟蹤示例........................................72
5.8、08-眼球跟蹤...............................................74
5.8.1、虹膜檢測............................................74
5.8.2、面部眼睛檢測示例....................................76
5.9、09-特征檢測...............................................77
5.9.1、Canny 和Hough 變換..................................77
5.9.2、HoG.................................................78
5.9.3、光流示例............................................78
5.9.4、關鍵點對象跟蹤......................................79
5.9.5、關鍵點描述符示例....................................81
5.9.6、局部二進制模式（LBP）示例...........................82
5.9.7、模板匹配............................................83
5.9.8、邊緣檢測............................................85
5.10、10-顏色跟蹤..............................................86
5.10.1、單色RGB565 Blob跟蹤示例...........................86
5.10.2、單色代碼跟蹤示例...................................87
5.10.3、單色灰度Blob跟蹤示例..............................88
5.10.4、圖像直方圖信息示例.................................89
5.10.5、圖像統計信息示例...................................90
5.10.6、彩色Blob跟蹤示例..................................90
5.10.7、彩色代碼跟蹤示例...................................91
5.10.8、紅外信標RGB565跟蹤示例............................93
5.10.9、紅外信標灰度跟蹤示例...............................94
5.10.10、自動RGB565顏色跟蹤示例...........................95
5.10.11、自動灰度色彩跟蹤示例..............................96
5.10.12、黑色灰度線以下示例................................98
5.11、11-顯示屏...............................................100
5.11.1、顯示屏............................................100
5.12、15-測試.................................................101
5.12.1、FPS測試腳本......................................101
5.12.2、自檢..............................................101
5.12.3、色條測試示例......................................104
5.13、16-二維碼...............................................105
5.13.1、AprilTags 示例....................................105
5.13.2、AprilTags 示例....................................107
5.13.3、AprilTags 示例....................................109
5.13.4、QRCode 示例.......................................110
5.13.5、QRCode 示例.......................................110
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