OPENCV 小引 - jdl.ac.cn 引.pdf · PDF file• OPENCV的编译 • OPENCV的使用. 2.2 OPENCV的使用 • 从windows visual studio

OPENCV
2006-06-02

OPENCV OPENCV OPENCV

1 OPENCV

OPENCV
OPENCV= Intel (c) Open source computer vision library
OpenCV Intel

OpenCV300c/c++,3D
2000505000

1 OPENCV

1.2 OPENCV
INTEl

1.2 OPENCV
/ Matlab visDSK IPL openCV IPP

1.2 OPENCV
Matlab
MATCOM

1.2 OPENCV
Matlab visDSK MICROSOFT
openCVVISDSK
OPENCopenCVintel

1.2 OPENCV
IPL---INTEL openCVINTEL IPP--INTEL

OPENCVIPL
IPL
Intel IPL image library
PCIntelCPU

IPLImage creation and access Image arithmetic and logic
operations.Image filtering.Linear image transformation.Image morphology.
Color space conversion. Image histogram and
thresholding. Geometric transformation
(zoom-decimate, rotate, mirror, shear, warp, perspective transform, affine transform).
Image moments.

OPENCV
OpenCV OpenCV API

OPENCV
IPL INTEL OpenCV IplImage

IPP
IPP

Intel Integrated Performance Primitives (Intel IPP)
is a library of thousands of multi-core-ready, highly optimized software functions for multimedia and data processingapplications, including:

IPP
OpenCV Intel Integrated Performance Primitives (IPP) IPP IPP http://www.intel.com/software/products/ipp/index.htm

IPP Video Decode/Encode
Image ProcessingAudio Decode/Encode
JPEG Decode/EncodeImage Color Conversion
Speech Recognition Computer Vision
Speech Decode/EncodeData Compression
Vector MathematicsString Processing
Matrix MathematicsSignal Processing
Cryptography

IPL
OPENCV IPP

IPL/OPENCV/IPP
IPLOPENCV IPLIPP OPENCVIPPIPL

OPENCV
BUG?

OpenCV
INTEL
OpencvIPL

1 OPENCV

1.3
windows/linux

1.3
Opencv, windows

2 OPENCV

2.1 OPENCV

2 OPENCV

2.2 OPENCV

Win32 Debug
libdll

2 OPENCV

2.2 OPENCV
windows visual studioOPENCV
OPENCV
libdll

Opencv dir\cxcore\include
Opencv dir\cv\include
Opencv dir\otherlibs\highgui
Opencv dir\cvaux\include

OpenCV dir\lib,
Opencv dir\otherlibs\highgui
OpenCV dir\bin

General
cvd.libhighguid.libcvauxd.libcxcored.lib

Release Link tab -> Generalcategory -> Object/library modules
cv.lib highgui.lib cvaux.lib cxcore.lib

OpenCV dir\binPATH

opencv

OPENCV
/ //size/

//size/
typedef struct CvPoint { int x; /* x-coordinate, usually zero-based */ int y;/* y-coordinate, usually zero-based */ } CvPoint; /* the constructor function */ inline CvPoint cvPoint( int x, int y );
2/3/

typedef struct tagPOINT { LONG x; LONG y; } POINT, *PPOINT; CPoint( int initX, int initY ) throw( );

opencvwindows
CvSizeCvRectCvScalar windows

OPENCV
//size/

Iplimage

Iplimage
CvvImage IplImage* m_img; Create( int width, int height, int bits_per_pixel, int
image_origin = 0 ); Load( const char* filename, int desired_color = 1 ); Save( const char* filename ); CopyOf( CvvImage& image, int desired_color = -
1 );

CvvImage
IplImage* GetImage() { return m_img; }; Width() Height() Show( const char* window ); Show( HDC dc, int x, int y, int width, int height, int from_x = 0, int from_y = 0 ); DrawToHDC( HDC hDCDst, RECT* pDstRect );

Iplimage *srcimg;
for(int y = 0; y < srcimg->height; y++ ){for(int x = 0; x < srcimg->width; x++ ) {
B = ((uchar*) (srcimg->imageData + y * srcimg- >widthStep))[x*3];
G =((uchar*) (srcimg->imageData + y * srcimg->widthStep))[x*3+1];
R = ((uchar*) (srcimg->imageData + y * srcimg->widthStep))[x*3+2];}
}

opencv Show( const char* window ); Show( HDC dc, int x, int y, int width, int height, int
from_x = 0, int from_y = 0 ); DrawToHDC( HDC hDCDst, RECT* pDstRect );

windows LPBITMAPINFO lpbminfo; lpbminfo=(LPBITMAPINFO) new char[sizeof(BITMAPINFOHEADER)
+256 * sizeof(RGBQUAD)]; lpbminfo->bmiHeader.biSize = 40; lpbminfo->bmiHeader.biWidth = m_nImageWidth; lpbminfo->bmiHeader.biHeight = m_nImageHeight; StretchDIBits(hDC, 0, 0, m_nImageWidth,m_nImageHeight, 0, 0, m_nImageWidth, m_nImageHeight, iplShowImage->imageData, lpbminfo,
DIB_RGB_COLORS, SRCCOPY);

ROI
ROIregion of interest IplmageROIROI

I/O
Video I/O functions CvCapture typedef struct CvCapture { CvCaptureVTable* vtable; } CvCapture;

typedef struct CvCaptureVTable { int count; CvCaptureCloseFunc close; CvCaptureGrabFrameFunc grab_frame; CvCaptureRetrieveFrameFunc retrieve_frame; CvCaptureGetPropertyFunc get_property; CvCaptureSetPropertyFunc set_property; CvCaptureGetDescriptionFunc get_description; } CvCaptureVTable;

SDKOPENCV
BYTE *lpstream = (BYTE *) AVIStreamGetFrame(pGetFrame, i); pBufImage = cvCreateImage(cvSize(m_nImageWidth,
m_nImageHeight), IPL_DEPTH_8U, 3); long
m_nImageSize=linewidth*m_nImageHeight; memcpy(pBufImage->imageData, lpstream, m_nImageSize);

OPENCV
//size/

32-bit floating point real matrix M (CvMat* mat): M(i,j) ((float*)(mat->data.ptr + mat->step*i))[j]

to Iplimage * srcimgCvMat srcstub, *srcarr = (CvMat*)srcimg;srcarr = cvGetMat( srcarr, &srcstub);src_step=srcarr->step; src_cols=srcarr-
>cols;src_rows=srcarr->rows;uchar * src, * srcrow;for(int y = 0; y < src_rows; y++ ) {
srcrow=(uchar*) (srcarr->data.ptr + y * src_step);for(int x = 0; x < src_cols; x++ ) {
src=(uchar*) (srcrow+3*x);B = (*src);G= (*(src+1));R= (*(src+2));}
}

to IplImage* cvGetImage ( const CvArr* arr, IplImage* image_header );

OPENCV
//size/

OPENCV highgui

highguistring windows

OPENCV
//size/

Contour Processing Geometryconvex hull
Features: 1/2Canny,Hough
Image StatisticsIn region of interest: Count, Mean, STD, Min, Max, Norm, Moments, Hu Moments

Image Pyramids MorphologyErode, dilate, open, close.
Gradient, top-hat, black-hat Background Differencing

Distance Transform Thresholding Flood Fill4 and 8 connected View Morphing

Motion Templates CAMSHIFT Active Contours snake Optical Flow Estimators POSIT Histogram (recognition)

Gesture Recognition Stereo based: Finding hand, hand mask. Image homography, bounding box.
Matrix Matrix Math: SVD, inverse, cross-product, Mahalanobis, eigen values and vectors. Perspective projection.

Eigen Objects Calc Cov Matrix, Calc Eigen objects, decomp. coeffs. Decomposition and projection.
embedded HMMs Drawing Primatives Line, rectangle,
circle, ellipse, polygon. Text on images.

OPENCV
//size/

http://sourceforge.net/projects/opencvlibrary/ OpenCV

YAHOO OPENCV http://www.yahoogroups.com/group/Open
CVOpenCV

INTELOPENCV http://www.intel.com/research/mrl/research/o
pencv/ CMU
http://www-2.cs.cmu.edu/afs/cs/project/cil/ftp/html/vision.html

OPENCV http://www.assuredigit.com//incoming/sour
cecode/opencv/chinese_docs/index.htm OPENCV http://www.assuredigit.com//incoming/sour
cecode/opencv/chinese_docs/faq.htm

Documents

OPENCV 小引 - jdl.ac.cn 引.pdf · PDF file• OPENCV的编译 • OPENCV的使用. 2.2 OPENCV的使用 • 从windows visual studio