学习opencv_学习笔记三

第四章细说HighGUI

一个可移植的图形工具包

由以下三部分组成:

硬件部分

文件部分

图形用户界面

1创建窗口

所用到函数:

/* create window 创建窗口*/

CVAPI(int) cvNamedWindow( constchar* name, //窗口名称

intflagsCV_DEFAULT(CV_WINDOW_AUTOSIZE) );//根据图像自动调整大小

/* destroy window and all the trackers associated with it销毁窗口*/

CVAPI(void) cvDestroyWindow( constchar* name);//窗口名称

/* get native window handle (HWND in case of Win32 and Widget in case of X Window) */

//窗口系统,windows下返回HWND

CVAPI(void*) cvGetWindowHandle( constchar* name);

/* get name of highgui window given its native handle 取得窗口名称*/

CVAPI(constchar*) cvGetWindowName( void* window_handle);

/* resize/move window 调整窗口大小*/

CVAPI(void) cvResizeWindow( constchar* name, intwidth, intheight);

//移动窗口 ,xy为左上角坐标

CVAPI(void) cvMoveWindow( constchar* name, intx, inty);

示例代码如下:

#include<opencv2\opencv.hpp>

usingnamespacecv;

intmain(intargc,char** argv) {

//创建窗口

cvNamedWindow("test");

//调整窗口大小

cvResizeWindow("test",800,600);

//移动窗口

cvMoveWindow("test", 80, 80);

//等待用户按键

cvWaitKey();

//释放窗口

cvDestroyWindow("test");

}

2载入图像

所用到函数

//载入图像

CVAPI(IplImage*) cvLoadImage( constchar* filename, // 文件名

intiscolorCV_DEFAULT(CV_LOAD_IMAGE_COLOR));//

Iscolor的常量值

/* 8bit, color or not */

CV_LOAD_IMAGE_UNCHANGED=-1,

/* 8bit, gray */

CV_LOAD_IMAGE_GRAYSCALE=0,//单通道

/* ?, color */

CV_LOAD_IMAGE_COLOR=1,//三通道

/* any depth, ? */

CV_LOAD_IMAGE_ANYDEPTH=2,//非8位图像

/* ?, any color */

CV_LOAD_IMAGE_ANYCOLOR=4//原始通道读入

//保存图像

/* save image to file */

CVAPI(int) cvSaveImage( constchar* filename, //文件名

constCvArr* image,//图像数组,

constint* paramsCV_DEFAULT(0) );

3显示图像

/* display image within window (highgui windows remember their content) */

CVAPI(void) cvShowImage( constchar* name, //窗口名称

constCvArr* image);//图像 IplImage*

//关闭所有窗口,释放内存

CVAPI(void) cvDestroyAllWindows(void);

//创建线程,处理窗口更新

CVAPI(int) cvStartWindowThread( void);

//等待用户按键,为0时无限等待

/* wait for key event infinitely (delay<=0) or for "delay" milliseconds */

CVAPI(int) cvWaitKey(intdelayCV_DEFAULT(0));

示例代码如下:

鼠标事件

//回调函数的格式

typedefvoid(CV_CDECL*CvMouseCallback)(intevent, //事件类型

intx, //事件发生时鼠标位置

inty,

intflags, //事件发生时的不同状态

void* param);//额外参数

Event的取值:

CV_EVENT_MOUSEMOVE=0,

CV_EVENT_LBUTTONDOWN=1,

CV_EVENT_RBUTTONDOWN=2,

CV_EVENT_MBUTTONDOWN=3,

CV_EVENT_LBUTTONUP=4,

CV_EVENT_RBUTTONUP=5,

CV_EVENT_MBUTTONUP=6,

CV_EVENT_LBUTTONDBLCLK=7,

CV_EVENT_RBUTTONDBLCLK=8,

CV_EVENT_MBUTTONDBLCLK=9,

CV_EVENT_MOUSEWHEEL=10,

CV_EVENT_MOUSEHWHEEL=11

Flag的取值

CV_EVENT_FLAG_LBUTTON=1,

CV_EVENT_FLAG_RBUTTON=2,

CV_EVENT_FLAG_MBUTTON=4,

CV_EVENT_FLAG_CTRLKEY=8,

CV_EVENT_FLAG_SHIFTKEY=16,

CV_EVENT_FLAG_ALTKEY=32

//注册回调函数

/* assign callback for mouse events */

CVAPI(void) cvSetMouseCallback( constchar* window_name, //窗体名称

CvMouseCallbackon_mouse,//回调函数

void* paramCV_DEFAULT(NULL));//额外信息

示例代码:

#include<opencv2\opencv.hpp>

usingnamespacecv;

//鼠标在窗口中画方形的程序

//函数声明

voidmy_mouse_callback(intevent, intx,inty,intflags,void* param);

//矩形

CvRectbox;

//绘制状态

booldrawing_box = false;

//绘制矩形

voiddraw_box(IplImage* img, CvRectrect) {

cvRectangle(

img,//目标图像

cvPoint(box.x, box.y),//矩形坐标

cvPoint(box.x + box.width, box.y + box.height),

cvScalar(0xff,0x00,0x00)//颜色

);

}

intmain(intargc,char** argv) {

box =cvRect(-1,-1,0,0);

//创建图像

IplImage* image = cvCreateImage(

cvSize(800,600),

IPL_DEPTH_8U,

3

);

cvZero(image);

IplImage* temp = cvCloneImage(image);

//创建窗口

cvNamedWindow("Box Example");

//注册鼠标加调函数

cvSetMouseCallback(

"Box Example",

my_mouse_callback,

(void*) image

);

while(1)

{

cvCopy(image,temp);//复制图像

if(drawing_box) {

draw_box(temp,box);

}

cvShowImage("Box Example", temp);//显示图片

//esc退出

if(cvWaitKey(15) == 27) {

break;

}

}

//清理工作

cvReleaseImage(&image);

cvReleaseImage(&temp);

cvDestroyWindow("Box Example");

}

/*

鼠标事件回调函数

*/

voidmy_mouse_callback(intevent, intx, inty, intflags, void* param) {

IplImage* image = (IplImage*)param;

switch(event)

{

caseCV_EVENT_MOUSEMOVE: {

if(drawing_box) {

box.width = x- box.x;

box.height = y- box.y;

}

}

break;

caseCV_EVENT_LBUTTONDOWN: {//鼠标标按下开始绘制矩形

drawing_box = true;

box =cvRect(x, y, 0, 0);

}

break;

caseCV_EVENT_LBUTTONUP: {//绘制矩形

drawing_box = false;

if(box.width < 0) {

box.x += box.width;

box.width *= -1;

}

if(box.height) {

box.y += box.height;

box.height *= -1;

}

draw_box(image,box);

}

break;

default:

break;

}

}

Sliders trackbars switches

//滑动条

/* create trackbar and display it on top of given window, set callback */

CVAPI(int) cvCreateTrackbar( constchar* trackbar_name, //滑动条名称

constchar* window_name,//所属窗体名称

int* value,//当前值 position

intcount, //最大值

//指向回调函数的指针

CvTrackbarCallbackon_changeCV_DEFAULT(NULL));

//读取和设置滚动条

/* retrieve or set trackbar position */

CVAPI(int) cvGetTrackbarPos( constchar* trackbar_name, //滑动条名称

constchar* window_name);//窗体名称

CVAPI(void) cvSetTrackbarPos( constchar* trackbar_name, constchar* window_name, intpos);

CVAPI(void) cvSetTrackbarMax(constchar* trackbar_name, constchar* window_name, intmaxval);

CVAPI(void) cvSetTrackbarMin(constchar* trackbar_name, constchar* window_name, intminval);

#include<opencv2\opencv.hpp>

usingnamespacecv;

//滑动条,实现开关功能

intg_switch_value = 0;

//滑动条回调函数

voidSwitch_callback(intposition) {

if(position==0) {

//switch_off_function();

}

else{

//switch_on_function();

}

}

intmain(intargc,char** argv) {

cvNamedWindow("Demo Windows",1);

//创建滑动条

cvCreateTrackbar(

"Switch",//滑动条名称

"Demo Windows",//所属窗体

&g_switch_value,//当前值

1,//最大值

Switch_callback//回调函数

);

while(1)

{

if(cvWaitKey(15) == 27) {

break;

}

}

}

4视频处理

//读取视频文件

/* start capturing frames from video file */

CVAPI(CvCapture*) cvCreateFileCapture( constchar* filename);//视频文件名

//读摄像头视频

/* start capturing frames from camera: index = camera_index + domain_offset (CV_CAP_*) */

CVAPI(CvCapture*) cvCreateCameraCapture( intindex);

Index所用常量

CV_CAP_ANY=0, // autodetect

CV_CAP_MIL=100, // MIL proprietary drivers

CV_CAP_VFW=200, // platform native

CV_CAP_V4L=200,

CV_CAP_V4L2=200,

CV_CAP_FIREWARE=300, // IEEE 1394 drivers

CV_CAP_FIREWIRE=300,

CV_CAP_IEEE1394=300,

CV_CAP_DC1394=300,

CV_CAP_CMU1394=300,

CV_CAP_STEREO=400, // TYZX proprietary drivers

CV_CAP_TYZX=400,

CV_TYZX_LEFT=400,

CV_TYZX_RIGHT=401,

CV_TYZX_COLOR=402,

CV_TYZX_Z=403,

CV_CAP_QT=500, // QuickTime

CV_CAP_UNICAP=600, // Unicap drivers

CV_CAP_DSHOW=700, // DirectShow (via videoInput)

CV_CAP_MSMF=1400, // Microsoft Media Foundation (via videoInput)

CV_CAP_PVAPI=800, // PvAPI, Prosilica GigE SDK

CV_CAP_OPENNI=900, // OpenNI (for Kinect)

CV_CAP_OPENNI_ASUS=910, // OpenNI (for Asus Xtion)

CV_CAP_ANDROID=1000, // Android - not used

CV_CAP_ANDROID_BACK=CV_CAP_ANDROID+99, // Android back camera - not used

CV_CAP_ANDROID_FRONT=CV_CAP_ANDROID+98, // Android front camera - not used

CV_CAP_XIAPI=1100, // XIMEA Camera API

CV_CAP_AVFOUNDATION= 1200, // AVFoundation framework for iOS (OS X Lion will have the same API)

CV_CAP_GIGANETIX= 1300, // Smartek Giganetix GigEVisionSDK

CV_CAP_INTELPERC= 1500, // Intel Perceptual Computing

CV_CAP_OPENNI2= 1600, // OpenNI2 (for Kinect)

CV_CAP_GPHOTO2= 1700,

CV_CAP_GSTREAMER= 1800, // GStreamer

CV_CAP_FFMPEG= 1900, // FFMPEG

CV_CAP_IMAGES= 2000 // OpenCV Image Sequence (e.g. img_%02d.jpg)

读视频

//

/* grab a frame, return 1 on success, 0 on fail.

this function is thought to be fast */

CVAPI(int) cvGrabFrame( CvCapture* capture);

/* get the frame grabbed with cvGrabFrame(..)

This function may apply some frame processing like

frame decompression, flipping etc.

!!!DO NOT RELEASE or MODIFY the retrieved frame!!! */

CVAPI(IplImage*) cvRetrieveFrame( CvCapture* capture,

intstreamIdxCV_DEFAULT(0) );

/* Just a combination of cvGrabFrame and cvRetrieveFrame

!!!DO NOT RELEASE or MODIFY the retrieved frame!!! */

CVAPI(IplImage*) cvQueryFrame( CvCapture* capture);

//读取和设置视频属性

/* retrieve or set capture properties */

CVAPI(double) cvGetCaptureProperty( CvCapture* capture,

intproperty_id);

CVAPI(int) cvSetCaptureProperty( CvCapture* capture,

intproperty_id,

doublevalue);

property_id的取值

CV_CAP_PROP_DC1394_OFF = -4, //turn the feature off (not controlled manually nor automatically)

CV_CAP_PROP_DC1394_MODE_MANUAL = -3, //set automatically when a value of the feature is set by the user

CV_CAP_PROP_DC1394_MODE_AUTO = -2,

CV_CAP_PROP_DC1394_MODE_ONE_PUSH_AUTO = -1,

CV_CAP_PROP_POS_MSEC =0,//视频的当前位置 毫秒

CV_CAP_PROP_POS_FRAMES =1,//以帧为单位的当前值

CV_CAP_PROP_POS_AVI_RATIO =2,//0-1之间的数

CV_CAP_PROP_FRAME_WIDTH =3,//宽度

CV_CAP_PROP_FRAME_HEIGHT =4,//高度

CV_CAP_PROP_FPS =5,//每秒钟的帧数

CV_CAP_PROP_FOURCC =6,//视频的压缩方法

CV_CAP_PROP_FRAME_COUNT =7,//视频的总帧数

CV_CAP_PROP_FORMAT =8,

CV_CAP_PROP_MODE =9,

CV_CAP_PROP_BRIGHTNESS =10,

CV_CAP_PROP_CONTRAST =11,

CV_CAP_PROP_SATURATION =12,

CV_CAP_PROP_HUE =13,

CV_CAP_PROP_GAIN =14,

CV_CAP_PROP_EXPOSURE =15,

CV_CAP_PROP_CONVERT_RGB =16,

CV_CAP_PROP_WHITE_BALANCE_BLUE_U =17,

CV_CAP_PROP_RECTIFICATION =18,

CV_CAP_PROP_MONOCHROME =19,

CV_CAP_PROP_SHARPNESS =20,

CV_CAP_PROP_AUTO_EXPOSURE =21, // exposure control done by camera,

// user can adjust refernce level

// using this feature

CV_CAP_PROP_GAMMA =22,

CV_CAP_PROP_TEMPERATURE =23,

CV_CAP_PROP_TRIGGER =24,

CV_CAP_PROP_TRIGGER_DELAY =25,

CV_CAP_PROP_WHITE_BALANCE_RED_V =26,

CV_CAP_PROP_ZOOM =27,

CV_CAP_PROP_FOCUS =28,

CV_CAP_PROP_GUID =29,

CV_CAP_PROP_ISO_SPEED =30,

CV_CAP_PROP_MAX_DC1394 =31,

CV_CAP_PROP_BACKLIGHT =32,

CV_CAP_PROP_PAN =33,

CV_CAP_PROP_TILT =34,

CV_CAP_PROP_ROLL =35,

CV_CAP_PROP_IRIS =36,

CV_CAP_PROP_SETTINGS =37,

CV_CAP_PROP_BUFFERSIZE =38,

CV_CAP_PROP_AUTOFOCUS =39,

CV_CAP_PROP_SAR_NUM =40,

CV_CAP_PROP_SAR_DEN =41,

CV_CAP_PROP_AUTOGRAB =1024, // property for videoio class CvCapture_Android only

CV_CAP_PROP_SUPPORTED_PREVIEW_SIZES_STRING=1025, // readonly, tricky property, returns cpnst char* indeed

CV_CAP_PROP_PREVIEW_FORMAT=1026, // readonly, tricky property, returns cpnst char* indeed

// OpenNI map generators

CV_CAP_OPENNI_DEPTH_GENERATOR = 1 << 31,

CV_CAP_OPENNI_IMAGE_GENERATOR = 1 << 30,

CV_CAP_OPENNI_GENERATORS_MASK = CV_CAP_OPENNI_DEPTH_GENERATOR + CV_CAP_OPENNI_IMAGE_GENERATOR,

// Properties of cameras available through OpenNI interfaces

CV_CAP_PROP_OPENNI_OUTPUT_MODE = 100,

CV_CAP_PROP_OPENNI_FRAME_MAX_DEPTH = 101, // in mm

CV_CAP_PROP_OPENNI_BASELINE = 102, // in mm

CV_CAP_PROP_OPENNI_FOCAL_LENGTH = 103, // in pixels

CV_CAP_PROP_OPENNI_REGISTRATION = 104, // flag

CV_CAP_PROP_OPENNI_REGISTRATION_ON = CV_CAP_PROP_OPENNI_REGISTRATION, // flag that synchronizes the remapping depth map to image map

// by changing depth generator's view point (if the flag is "on") or

// sets this view point to its normal one (if the flag is "off").

CV_CAP_PROP_OPENNI_APPROX_FRAME_SYNC = 105,

CV_CAP_PROP_OPENNI_MAX_BUFFER_SIZE = 106,

CV_CAP_PROP_OPENNI_CIRCLE_BUFFER = 107,

CV_CAP_PROP_OPENNI_MAX_TIME_DURATION = 108,

CV_CAP_PROP_OPENNI_GENERATOR_PRESENT = 109,

CV_CAP_PROP_OPENNI2_SYNC = 110,

CV_CAP_PROP_OPENNI2_MIRROR = 111,

CV_CAP_OPENNI_IMAGE_GENERATOR_PRESENT = CV_CAP_OPENNI_IMAGE_GENERATOR + CV_CAP_PROP_OPENNI_GENERATOR_PRESENT,

CV_CAP_OPENNI_IMAGE_GENERATOR_OUTPUT_MODE = CV_CAP_OPENNI_IMAGE_GENERATOR + CV_CAP_PROP_OPENNI_OUTPUT_MODE,

CV_CAP_OPENNI_DEPTH_GENERATOR_BASELINE = CV_CAP_OPENNI_DEPTH_GENERATOR + CV_CAP_PROP_OPENNI_BASELINE,

CV_CAP_OPENNI_DEPTH_GENERATOR_FOCAL_LENGTH = CV_CAP_OPENNI_DEPTH_GENERATOR + CV_CAP_PROP_OPENNI_FOCAL_LENGTH,

CV_CAP_OPENNI_DEPTH_GENERATOR_REGISTRATION = CV_CAP_OPENNI_DEPTH_GENERATOR + CV_CAP_PROP_OPENNI_REGISTRATION,

CV_CAP_OPENNI_DEPTH_GENERATOR_REGISTRATION_ON = CV_CAP_OPENNI_DEPTH_GENERATOR_REGISTRATION,

// Properties of cameras available through GStreamer interface

CV_CAP_GSTREAMER_QUEUE_LENGTH = 200, // default is 1

// PVAPI

CV_CAP_PROP_PVAPI_MULTICASTIP = 300, // ip for anable multicast master mode. 0 for disable multicast

CV_CAP_PROP_PVAPI_FRAMESTARTTRIGGERMODE = 301, // FrameStartTriggerMode: Determines how a frame is initiated

CV_CAP_PROP_PVAPI_DECIMATIONHORIZONTAL = 302, // Horizontal sub-sampling of the image

CV_CAP_PROP_PVAPI_DECIMATIONVERTICAL = 303, // Vertical sub-sampling of the image

CV_CAP_PROP_PVAPI_BINNINGX = 304, // Horizontal binning factor

CV_CAP_PROP_PVAPI_BINNINGY = 305, // Vertical binning factor

CV_CAP_PROP_PVAPI_PIXELFORMAT = 306, // Pixel format

// Properties of cameras available through XIMEA SDK interface

CV_CAP_PROP_XI_DOWNSAMPLING = 400, // Change image resolution by binning or skipping.

CV_CAP_PROP_XI_DATA_FORMAT = 401, // Output data format.

CV_CAP_PROP_XI_OFFSET_X = 402, // Horizontal offset from the origin to the area of interest (in pixels).

CV_CAP_PROP_XI_OFFSET_Y = 403, // Vertical offset from the origin to the area of interest (in pixels).

CV_CAP_PROP_XI_TRG_SOURCE = 404, // Defines source of trigger.

CV_CAP_PROP_XI_TRG_SOFTWARE = 405, // Generates an internal trigger. PRM_TRG_SOURCE must be set to TRG_SOFTWARE.

CV_CAP_PROP_XI_GPI_SELECTOR = 406, // Selects general purpose input

CV_CAP_PROP_XI_GPI_MODE = 407, // Set general purpose input mode

CV_CAP_PROP_XI_GPI_LEVEL = 408, // Get general purpose level

CV_CAP_PROP_XI_GPO_SELECTOR = 409, // Selects general purpose output

CV_CAP_PROP_XI_GPO_MODE = 410, // Set general purpose output mode

CV_CAP_PROP_XI_LED_SELECTOR = 411, // Selects camera signalling LED

CV_CAP_PROP_XI_LED_MODE = 412, // Define camera signalling LED functionality

CV_CAP_PROP_XI_MANUAL_WB = 413, // Calculates White Balance(must be called during acquisition)

CV_CAP_PROP_XI_AUTO_WB = 414, // Automatic white balance

CV_CAP_PROP_XI_AEAG = 415, // Automatic exposure/gain

CV_CAP_PROP_XI_EXP_PRIORITY = 416, // Exposure priority (0.5 - exposure 50%, gain 50%).

CV_CAP_PROP_XI_AE_MAX_LIMIT = 417, // Maximum limit of exposure in AEAG procedure

CV_CAP_PROP_XI_AG_MAX_LIMIT = 418, // Maximum limit of gain in AEAG procedure

CV_CAP_PROP_XI_AEAG_LEVEL = 419, // Average intensity of output signal AEAG should achieve(in %)

CV_CAP_PROP_XI_TIMEOUT = 420, // Image capture timeout in milliseconds

CV_CAP_PROP_XI_EXPOSURE = 421, // Exposure time in microseconds

CV_CAP_PROP_XI_EXPOSURE_BURST_COUNT = 422, // Sets the number of times of exposure in one frame.

CV_CAP_PROP_XI_GAIN_SELECTOR = 423, // Gain selector for parameter Gain allows to select different type of gains.

CV_CAP_PROP_XI_GAIN = 424, // Gain in dB

CV_CAP_PROP_XI_DOWNSAMPLING_TYPE = 426, // Change image downsampling type.

CV_CAP_PROP_XI_BINNING_SELECTOR = 427, // Binning engine selector.

CV_CAP_PROP_XI_BINNING_VERTICAL = 428, // Vertical Binning - number of vertical photo-sensitive cells to combine together.

CV_CAP_PROP_XI_BINNING_HORIZONTAL = 429, // Horizontal Binning - number of horizontal photo-sensitive cells to combine together.

CV_CAP_PROP_XI_BINNING_PATTERN = 430, // Binning pattern type.

CV_CAP_PROP_XI_DECIMATION_SELECTOR = 431, // Decimation engine selector.

CV_CAP_PROP_XI_DECIMATION_VERTICAL = 432, // Vertical Decimation - vertical sub-sampling of the image - reduces the vertical resolution of the image by the specified vertical decimation factor.

CV_CAP_PROP_XI_DECIMATION_HORIZONTAL = 433, // Horizontal Decimation - horizontal sub-sampling of the image - reduces the horizontal resolution of the image by the specified vertical decimation factor.

CV_CAP_PROP_XI_DECIMATION_PATTERN = 434, // Decimation pattern type.

CV_CAP_PROP_XI_IMAGE_DATA_FORMAT = 435, // Output data format.

CV_CAP_PROP_XI_SHUTTER_TYPE = 436, // Change sensor shutter type(CMOS sensor).

CV_CAP_PROP_XI_SENSOR_TAPS = 437, // Number of taps

CV_CAP_PROP_XI_AEAG_ROI_OFFSET_X = 439, // Automatic exposure/gain ROI offset X

CV_CAP_PROP_XI_AEAG_ROI_OFFSET_Y = 440, // Automatic exposure/gain ROI offset Y

CV_CAP_PROP_XI_AEAG_ROI_WIDTH = 441, // Automatic exposure/gain ROI Width

CV_CAP_PROP_XI_AEAG_ROI_HEIGHT = 442, // Automatic exposure/gain ROI Height

CV_CAP_PROP_XI_BPC = 445, // Correction of bad pixels

CV_CAP_PROP_XI_WB_KR = 448, // White balance red coefficient

CV_CAP_PROP_XI_WB_KG = 449, // White balance green coefficient

CV_CAP_PROP_XI_WB_KB = 450, // White balance blue coefficient

CV_CAP_PROP_XI_WIDTH = 451, // Width of the Image provided by the device (in pixels).

CV_CAP_PROP_XI_HEIGHT = 452, // Height of the Image provided by the device (in pixels).

CV_CAP_PROP_XI_LIMIT_BANDWIDTH = 459, // Set/get bandwidth(datarate)(in Megabits)

CV_CAP_PROP_XI_SENSOR_DATA_BIT_DEPTH = 460, // Sensor output data bit depth.

CV_CAP_PROP_XI_OUTPUT_DATA_BIT_DEPTH = 461, // Device output data bit depth.

CV_CAP_PROP_XI_IMAGE_DATA_BIT_DEPTH = 462, // bitdepth of data returned by function xiGetImage

CV_CAP_PROP_XI_OUTPUT_DATA_PACKING = 463, // Device output data packing (or grouping) enabled. Packing could be enabled if output_data_bit_depth > 8 and packing capability is available.

CV_CAP_PROP_XI_OUTPUT_DATA_PACKING_TYPE = 464, // Data packing type. Some cameras supports only specific packing type.

CV_CAP_PROP_XI_IS_COOLED = 465, // Returns 1 for cameras that support cooling.

CV_CAP_PROP_XI_COOLING = 466, // Start camera cooling.

CV_CAP_PROP_XI_TARGET_TEMP = 467, // Set sensor target temperature for cooling.

CV_CAP_PROP_XI_CHIP_TEMP = 468, // Camera sensor temperature

CV_CAP_PROP_XI_HOUS_TEMP = 469, // Camera housing tepmerature

CV_CAP_PROP_XI_CMS = 470, // Mode of color management system.

CV_CAP_PROP_XI_APPLY_CMS = 471, // Enable applying of CMS profiles to xiGetImage (see XI_PRM_INPUT_CMS_PROFILE, XI_PRM_OUTPUT_CMS_PROFILE).

CV_CAP_PROP_XI_IMAGE_IS_COLOR = 474, // Returns 1 for color cameras.

CV_CAP_PROP_XI_COLOR_FILTER_ARRAY = 475, // Returns color filter array type of RAW data.

CV_CAP_PROP_XI_GAMMAY = 476, // Luminosity gamma

CV_CAP_PROP_XI_GAMMAC = 477, // Chromaticity gamma

CV_CAP_PROP_XI_SHARPNESS = 478, // Sharpness Strenght

CV_CAP_PROP_XI_CC_MATRIX_00 = 479, // Color Correction Matrix element [0][0]

CV_CAP_PROP_XI_CC_MATRIX_01 = 480, // Color Correction Matrix element [0][1]

CV_CAP_PROP_XI_CC_MATRIX_02 = 481, // Color Correction Matrix element [0][2]

CV_CAP_PROP_XI_CC_MATRIX_03 = 482, // Color Correction Matrix element [0][3]

CV_CAP_PROP_XI_CC_MATRIX_10 = 483, // Color Correction Matrix element [1][0]

CV_CAP_PROP_XI_CC_MATRIX_11 = 484, // Color Correction Matrix element [1][1]

CV_CAP_PROP_XI_CC_MATRIX_12 = 485, // Color Correction Matrix element [1][2]

CV_CAP_PROP_XI_CC_MATRIX_13 = 486, // Color Correction Matrix element [1][3]

CV_CAP_PROP_XI_CC_MATRIX_20 = 487, // Color Correction Matrix element [2][0]

CV_CAP_PROP_XI_CC_MATRIX_21 = 488, // Color Correction Matrix element [2][1]

CV_CAP_PROP_XI_CC_MATRIX_22 = 489, // Color Correction Matrix element [2][2]

CV_CAP_PROP_XI_CC_MATRIX_23 = 490, // Color Correction Matrix element [2][3]

CV_CAP_PROP_XI_CC_MATRIX_30 = 491, // Color Correction Matrix element [3][0]

CV_CAP_PROP_XI_CC_MATRIX_31 = 492, // Color Correction Matrix element [3][1]

CV_CAP_PROP_XI_CC_MATRIX_32 = 493, // Color Correction Matrix element [3][2]

CV_CAP_PROP_XI_CC_MATRIX_33 = 494, // Color Correction Matrix element [3][3]

CV_CAP_PROP_XI_DEFAULT_CC_MATRIX = 495, // Set default Color Correction Matrix

CV_CAP_PROP_XI_TRG_SELECTOR = 498, // Selects the type of trigger.

CV_CAP_PROP_XI_ACQ_FRAME_BURST_COUNT = 499, // Sets number of frames acquired by burst. This burst is used only if trigger is set to FrameBurstStart

CV_CAP_PROP_XI_DEBOUNCE_EN = 507, // Enable/Disable debounce to selected GPI

CV_CAP_PROP_XI_DEBOUNCE_T0 = 508, // Debounce time (x * 10us)

CV_CAP_PROP_XI_DEBOUNCE_T1 = 509, // Debounce time (x * 10us)

CV_CAP_PROP_XI_DEBOUNCE_POL = 510, // Debounce polarity (pol = 1 t0 - falling edge, t1 - rising edge)

CV_CAP_PROP_XI_LENS_MODE = 511, // Status of lens control interface. This shall be set to XI_ON before any Lens operations.

CV_CAP_PROP_XI_LENS_APERTURE_VALUE = 512, // Current lens aperture value in stops. Examples: 2.8, 4, 5.6, 8, 11

CV_CAP_PROP_XI_LENS_FOCUS_MOVEMENT_VALUE = 513, // Lens current focus movement value to be used by XI_PRM_LENS_FOCUS_MOVE in motor steps.

CV_CAP_PROP_XI_LENS_FOCUS_MOVE = 514, // Moves lens focus motor by steps set in XI_PRM_LENS_FOCUS_MOVEMENT_VALUE.

CV_CAP_PROP_XI_LENS_FOCUS_DISTANCE = 515, // Lens focus distance in cm.

CV_CAP_PROP_XI_LENS_FOCAL_LENGTH = 516, // Lens focal distance in mm.

CV_CAP_PROP_XI_LENS_FEATURE_SELECTOR = 517, // Selects the current feature which is accessible by XI_PRM_LENS_FEATURE.

CV_CAP_PROP_XI_LENS_FEATURE = 518, // Allows access to lens feature value currently selected by XI_PRM_LENS_FEATURE_SELECTOR.

CV_CAP_PROP_XI_DEVICE_MODEL_ID = 521, // Return device model id

CV_CAP_PROP_XI_DEVICE_SN = 522, // Return device serial number

CV_CAP_PROP_XI_IMAGE_DATA_FORMAT_RGB32_ALPHA = 529, // The alpha channel of RGB32 output image format.

CV_CAP_PROP_XI_IMAGE_PAYLOAD_SIZE = 530, // Buffer size in bytes sufficient for output image returned by xiGetImage

CV_CAP_PROP_XI_TRANSPORT_PIXEL_FORMAT = 531, // Current format of pixels on transport layer.

CV_CAP_PROP_XI_SENSOR_CLOCK_FREQ_HZ = 532, // Sensor clock frequency in Hz.

CV_CAP_PROP_XI_SENSOR_CLOCK_FREQ_INDEX = 533, // Sensor clock frequency index. Sensor with selected frequencies have possibility to set the frequency only by this index.

CV_CAP_PROP_XI_SENSOR_OUTPUT_CHANNEL_COUNT = 534, // Number of output channels from sensor used for data transfer.

CV_CAP_PROP_XI_FRAMERATE = 535, // Define framerate in Hz

CV_CAP_PROP_XI_COUNTER_SELECTOR = 536, // Select counter

CV_CAP_PROP_XI_COUNTER_VALUE = 537, // Counter status

CV_CAP_PROP_XI_ACQ_TIMING_MODE = 538, // Type of sensor frames timing.

CV_CAP_PROP_XI_AVAILABLE_BANDWIDTH = 539, // Calculate and return available interface bandwidth(int Megabits)

CV_CAP_PROP_XI_BUFFER_POLICY = 540, // Data move policy

CV_CAP_PROP_XI_LUT_EN = 541, // Activates LUT.

CV_CAP_PROP_XI_LUT_INDEX = 542, // Control the index (offset) of the coefficient to access in the LUT.

CV_CAP_PROP_XI_LUT_VALUE = 543, // Value at entry LUTIndex of the LUT

CV_CAP_PROP_XI_TRG_DELAY = 544, // Specifies the delay in microseconds (us) to apply after the trigger reception before activating it.

CV_CAP_PROP_XI_TS_RST_MODE = 545, // Defines how time stamp reset engine will be armed

CV_CAP_PROP_XI_TS_RST_SOURCE = 546, // Defines which source will be used for timestamp reset. Writing this parameter will trigger settings of engine (arming)

CV_CAP_PROP_XI_IS_DEVICE_EXIST = 547, // Returns 1 if camera connected and works properly.

CV_CAP_PROP_XI_ACQ_BUFFER_SIZE = 548, // Acquisition buffer size in buffer_size_unit. Default bytes.

CV_CAP_PROP_XI_ACQ_BUFFER_SIZE_UNIT = 549, // Acquisition buffer size unit in bytes. Default 1. E.g. Value 1024 means that buffer_size is in KiBytes

CV_CAP_PROP_XI_ACQ_TRANSPORT_BUFFER_SIZE = 550, // Acquisition transport buffer size in bytes

CV_CAP_PROP_XI_BUFFERS_QUEUE_SIZE = 551, // Queue of field/frame buffers

CV_CAP_PROP_XI_ACQ_TRANSPORT_BUFFER_COMMIT = 552, // Number of buffers to commit to low level

CV_CAP_PROP_XI_RECENT_FRAME = 553, // GetImage returns most recent frame

CV_CAP_PROP_XI_DEVICE_RESET = 554, // Resets the camera to default state.

CV_CAP_PROP_XI_COLUMN_FPN_CORRECTION = 555, // Correction of column FPN

CV_CAP_PROP_XI_SENSOR_MODE = 558, // Current sensor mode. Allows to select sensor mode by one integer. Setting of this parameter affects: image dimensions and downsampling.

CV_CAP_PROP_XI_HDR = 559, // Enable High Dynamic Range feature.

CV_CAP_PROP_XI_HDR_KNEEPOINT_COUNT = 560, // The number of kneepoints in the PWLR.

CV_CAP_PROP_XI_HDR_T1 = 561, // position of first kneepoint(in % of XI_PRM_EXPOSURE)

CV_CAP_PROP_XI_HDR_T2 = 562, // position of second kneepoint (in % of XI_PRM_EXPOSURE)

CV_CAP_PROP_XI_KNEEPOINT1 = 563, // value of first kneepoint (% of sensor saturation)

CV_CAP_PROP_XI_KNEEPOINT2 = 564, // value of second kneepoint (% of sensor saturation)

CV_CAP_PROP_XI_IMAGE_BLACK_LEVEL = 565, // Last image black level counts. Can be used for Offline processing to recall it.

CV_CAP_PROP_XI_HW_REVISION = 571, // Returns hardware revision number.

CV_CAP_PROP_XI_DEBUG_LEVEL = 572, // Set debug level

CV_CAP_PROP_XI_AUTO_BANDWIDTH_CALCULATION = 573, // Automatic bandwidth calculation,

CV_CAP_PROP_XI_FREE_FFS_SIZE = 581, // Size of free camera FFS.

CV_CAP_PROP_XI_USED_FFS_SIZE = 582, // Size of used camera FFS.

CV_CAP_PROP_XI_FFS_ACCESS_KEY = 583, // Setting of key enables file operations on some cameras.

CV_CAP_PROP_XI_SENSOR_FEATURE_SELECTOR = 585, // Selects the current feature which is accessible by XI_PRM_SENSOR_FEATURE_VALUE.

CV_CAP_PROP_XI_SENSOR_FEATURE_VALUE = 586, // Allows access to sensor feature value currently selected by XI_PRM_SENSOR_FEATURE_SELECTOR.

// Properties for Android cameras

CV_CAP_PROP_ANDROID_FLASH_MODE = 8001,

CV_CAP_PROP_ANDROID_FOCUS_MODE = 8002,

CV_CAP_PROP_ANDROID_WHITE_BALANCE = 8003,

CV_CAP_PROP_ANDROID_ANTIBANDING = 8004,

CV_CAP_PROP_ANDROID_FOCAL_LENGTH = 8005,

CV_CAP_PROP_ANDROID_FOCUS_DISTANCE_NEAR = 8006,

CV_CAP_PROP_ANDROID_FOCUS_DISTANCE_OPTIMAL = 8007,

CV_CAP_PROP_ANDROID_FOCUS_DISTANCE_FAR = 8008,

CV_CAP_PROP_ANDROID_EXPOSE_LOCK = 8009,

CV_CAP_PROP_ANDROID_WHITEBALANCE_LOCK = 8010,

// Properties of cameras available through AVFOUNDATION interface

CV_CAP_PROP_IOS_DEVICE_FOCUS = 9001,

CV_CAP_PROP_IOS_DEVICE_EXPOSURE = 9002,

CV_CAP_PROP_IOS_DEVICE_FLASH = 9003,

CV_CAP_PROP_IOS_DEVICE_WHITEBALANCE = 9004,

CV_CAP_PROP_IOS_DEVICE_TORCH = 9005,

// Properties of cameras available through Smartek Giganetix Ethernet Vision interface

/* --- Vladimir Litvinenko ([e-mail]) --- */

CV_CAP_PROP_GIGA_FRAME_OFFSET_X = 10001,

CV_CAP_PROP_GIGA_FRAME_OFFSET_Y = 10002,

CV_CAP_PROP_GIGA_FRAME_WIDTH_MAX = 10003,

CV_CAP_PROP_GIGA_FRAME_HEIGH_MAX = 10004,

CV_CAP_PROP_GIGA_FRAME_SENS_WIDTH = 10005,

CV_CAP_PROP_GIGA_FRAME_SENS_HEIGH = 10006,

CV_CAP_PROP_INTELPERC_PROFILE_COUNT = 11001,

CV_CAP_PROP_INTELPERC_PROFILE_IDX = 11002,

CV_CAP_PROP_INTELPERC_DEPTH_LOW_CONFIDENCE_VALUE = 11003,

CV_CAP_PROP_INTELPERC_DEPTH_SATURATION_VALUE = 11004,

CV_CAP_PROP_INTELPERC_DEPTH_CONFIDENCE_THRESHOLD = 11005,

CV_CAP_PROP_INTELPERC_DEPTH_FOCAL_LENGTH_HORZ = 11006,

CV_CAP_PROP_INTELPERC_DEPTH_FOCAL_LENGTH_VERT = 11007,

// Intel PerC streams

CV_CAP_INTELPERC_DEPTH_GENERATOR = 1 << 29,

CV_CAP_INTELPERC_IMAGE_GENERATOR = 1 << 28,

CV_CAP_INTELPERC_GENERATORS_MASK = CV_CAP_INTELPERC_DEPTH_GENERATOR + CV_CAP_INTELPERC_IMAGE_GENERATOR

写视频

//保存视频文件

/* initialize video file writer */

CVAPI(CvVideoWriter*) cvCreateVideoWriter( constchar* filename, //文件名

intfourcc,

doublefps,

CvSizeframe_size,

intis_colorCV_DEFAULT(1));

//写入每一帧

/* write frame to video file */

CVAPI(int) cvWriteFrame( CvVideoWriter* writer, //视频写入结构

constIplImage* image);//图像IplImage*

//释放空间和结构

/* close video file writer */

CVAPI(void) cvReleaseVideoWriter( CvVideoWriter** writer);

示例代码如下:

#include<opencv2\opencv.hpp>

usingnamespacecv;

usingnamespacestd;

//视频操作

intmain(intargc,char** argv) {

//读取视频文件

//cvCreateFileCapture

VideoCapturecap(0);

namedWindow("video");

if(!cap.isOpened())

{

return-1;

}

while(waitKey(1)!='q'&&cap.isOpened())

{

Matframe;

cap >>frame;

if(frame.empty()) {

cout <<"Video over"<<endl;

}

imshow("video", frame);

}

return0;

}

5 converImage函数

//不同图像格式之间转换

/* utility function: convert one image to another with optional vertical flip */

CVAPI(void) cvConvertImage( constCvArr* src, //源图像 (8位单通道 或是3个通道)

CvArr* dst,//

intflagsCV_DEFAULT(0));//可以垂直反转图像