A.Win 7 x64 旗舰版
B.VS 2012 旗舰版
C.OpenCV 3.0.0
http://www.cnblogs.com/Romi/archive/2012/05/07/2487652.html
http://blog.csdn.net/fangpian/article/details/6233310
注:
a.此处不累赘描述OpenCV 3.0在VS 2012上的部署过程。
b.此处依然使用网上流传的CvvImage在MFC 的Picture Control上进行图像显示。
c.末尾附带CvvImage.h和CvvImage.cpp代码。
d.此处尚未实现图片自适应显示。
A)新建一个名为pictest的MFC项目。选择基于对话框,在静态库中使用MFC,不使用Unicode库。
图2-A-1
图2-A-2
B)在对话框中插入一个按钮和一个图片控件,并修改好对应ID。
图2-B-1
图2-B-2
C)在对话框头文件和源文件中分别加入CvvImage.h和CvvImage.cpp。
这两个文件我都放在项目目录下。
图2-C-1
在对话框头文件中加入头文件。
图2-C-2
D)初始化一些变量,并获取图片空间的句柄,以便于进行图像输出操作。
在对话框的头文件添加:
CRectrect;
CStatic*pStc;//标识Picture Control
CDC*pDC;
HDChDC;
图2-D-1
在对话框的构造函数出添加:
//初始化指针变量
pStc= NULL;
pDC= NULL;
图2-D-2
在对话框的初始化函数OnInitDialog处添加:
pStc =(CStatic *)GetDlgItem(IDC_S_ShowImg);//标识所标记的控制窗口句柄
pStc->GetClientRect(&rect);//获取并传递坐标
pDC= pStc->GetDC();//获取设备上下文
hDC= pDC->GetSafeHdc();//获取设备上下文的句柄
图2-D-3
E)为按钮添加处理函数,并添加:
IplImage*img = cvLoadImage("1.jpg",1);//载入图片
CvvImagecvimg;
cvimg.CopyOf(img);
cvimg.DrawToHDC(hDC,&rect);//显示在图片控件上
ReleaseDC(pDC);//释放pDC的内存
图2-E-1
F)在项目目录下添加一张名为“1.jpg”的图片,Debug后可以显示。
图2-F-1
//**********************CvvImage.h**********************//
#pragma once
#ifndef CVVIMAGE_CLASS_DEF
#define CVVIMAGE_CLASS_DEF
#include"opencv2/highgui/highgui.hpp"
#include"opencv2/core/core.hpp"
#include"opencv2/imgproc/imgproc.hpp"
#include"opencv2/imgproc/imgproc_c.h"
class CvvImage
{
public:
CvvImage();
virtual ~CvvImage();
virtual bool Create( int width, int height, int bits_per_pixel, int image_origin = 0);
virtual bool Load( const char* filename, int desired_color = 1 );
virtual bool LoadRect( const char* filename,
int desired_color, CvRect r );
#if defined WIN32 || defined _WIN32
virtual bool LoadRect( const char* filename,
int desired_color, RECT r )
{
return LoadRect( filename, desired_color,
cvRect( r.left, r.top, r.right - r.left, r.bottom - r.top ));
}
#endif
virtual bool Save( const char* filename );
virtual void CopyOf( CvvImage& image, int desired_color = -1 );
virtual void CopyOf( IplImage* img, int desired_color = -1 );
IplImage* GetImage() { return m_img; };
virtual void Destroy(void);
int Width() { return !m_img ? 0 :!m_img->roi ? m_img->width : m_img->roi->width; };
int Height() { return !m_img ? 0 :!m_img->roi ? m_img->height : m_img->roi->height;};
int Bpp() { return m_img ? (m_img->depth& 255)*m_img->nChannels : 0; };
virtual void Fill( int color );
virtual void Show( const char* window );
#if defined WIN32 || defined _WIN32
virtual void Show( HDC dc, int x, int y, int width, int height,
int from_x = 0, int from_y = 0 );
virtual void DrawToHDC( HDC hDCDst, RECT* pDstRect );
#endif
protected:
IplImage* m_img;
};
typedef CvvImage CImage;
#endif
//**********************CvvImage.cpp**********************//
#include "StdAfx.h"
#include "CvvImage.h"
//
// Construction/Destruction
//
CV_INLINE RECT NormalizeRect( RECT r );
CV_INLINE RECT NormalizeRect( RECT r )
{
int t;
if( r.left > r.right )
{
t = r.left;
r.left = r.right;
r.right = t;
}
if( r.top > r.bottom )
{
t = r.top;
r.top = r.bottom;
r.bottom = t;
}
return r;
}
CV_INLINE CvRect RectToCvRect( RECT sr);
CV_INLINE CvRect RectToCvRect( RECT sr)
{
sr = NormalizeRect( sr );
return cvRect( sr.left, sr.top, sr.right -sr.left, sr.bottom - sr.top );
}
CV_INLINE RECT CvRectToRect( CvRect sr);
CV_INLINE RECT CvRectToRect( CvRect sr)
{
RECT dr;
dr.left = sr.x;
dr.top = sr.y;
dr.right = sr.x + sr.width;
dr.bottom = sr.y + sr.height;
return dr;
}
CV_INLINE IplROI RectToROI( RECT r );
CV_INLINE IplROI RectToROI( RECT r )
{
IplROI roi;
r = NormalizeRect( r );
roi.xOffset = r.left;
roi.yOffset = r.top;
roi.width = r.right - r.left;
roi.height = r.bottom - r.top;
roi.coi = 0;
return roi;
}
void FillBitmapInfo( BITMAPINFO* bmi, int width, int height, int bpp, intorigin )
{
assert( bmi && width >= 0&& height >= 0 && (bpp == 8 || bpp == 24 || bpp == 32));
BITMAPINFOHEADER* bmih =&(bmi->bmiHeader);
memset( bmih, 0, sizeof(*bmih));
bmih->biSize = sizeof(BITMAPINFOHEADER);
bmih->biWidth = width;
bmih->biHeight = origin ? abs(height) :-abs(height);
bmih->biPlanes = 1;
bmih->biBitCount = (unsigned short)bpp;
bmih->biCompression = BI_RGB;
if( bpp == 8 )
{
RGBQUAD* palette = bmi->bmiColors;
int i;
for( i = 0; i < 256; i++ )
{
palette[i].rgbBlue = palette[i].rgbGreen = palette[i].rgbRed = (BYTE)i;
palette[i].rgbReserved = 0;
}
}
}
CvvImage::CvvImage()
{
m_img = 0;
}
void CvvImage::Destroy()
{
cvReleaseImage( &m_img );
}
CvvImage::~CvvImage()
{
Destroy();
}
bool CvvImage::Create( int w, int h, int bpp, int origin )
{
const unsigned max_img_size = 10000;
if( (bpp != 8 && bpp != 24 &&bpp != 32) ||
(unsigned)w >= max_img_size ||(unsigned)h >= max_img_size ||
(origin != IPL_ORIGIN_TL && origin != IPL_ORIGIN_BL))
{
assert(0); // most probably, it is a programming error
return false;
}
if( !m_img || Bpp() != bpp || m_img->width!= w || m_img->height != h )
{
if( m_img && m_img->nSize == sizeof(IplImage))
Destroy();
m_img = cvCreateImage( cvSize( w, h ), IPL_DEPTH_8U, bpp/8 );
}
if( m_img )
m_img->origin = origin == 0 ? IPL_ORIGIN_TL : IPL_ORIGIN_BL;
return m_img != 0;
}
void CvvImage::CopyOf( CvvImage& image, int desired_color )
{
IplImage* img = image.GetImage();
if( img )
{
CopyOf( img, desired_color );
}
}
#define HG_IS_IMAGE(img) \
((img) != 0 && ((constIplImage*)(img))->nSize == sizeof(IplImage) && \
((IplImage*)img)->imageData != 0)
void CvvImage::CopyOf( IplImage* img, int desired_color )
{
if( HG_IS_IMAGE(img) )
{
int color = desired_color;
CvSize size = cvGetSize( img );
if( color < 0 )
color = img->nChannels > 1;
if( Create( size.width, size.height,
(!color ? 1 : img->nChannels > 1 ? img->nChannels : 3)*8,
img->origin ))
{
cvConvertImage( img, m_img, 0 );
}
}
}
bool CvvImage::Load( const char* filename, int desired_color )
{
IplImage* img = cvLoadImage( filename,desired_color );
if( !img )
return false;
CopyOf( img, desired_color );
cvReleaseImage( &img );
return true;
}
bool CvvImage::LoadRect( const char* filename,
int desired_color, CvRect r )
{
if( r.width < 0 || r.height < 0 ) returnfalse;
IplImage* img = cvLoadImage( filename,desired_color );
if( !img )
return false;
if( r.width == 0 || r.height == 0 )
{
r.width = img->width;
r.height = img->height;
r.x = r.y = 0;
}
if( r.x > img->width || r.y >img->height ||
r.x + r.width < 0 || r.y + r.height < 0 )
{
cvReleaseImage( &img );
return false;
}
if( r.x < 0 )
{
r.width += r.x;
r.x = 0;
}
if( r.y < 0 )
{
r.height += r.y;
r.y = 0;
}
if( r.x + r.width > img->width )
r.width = img->width - r.x;
if( r.y + r.height > img->height )
r.height = img->height - r.y;
cvSetImageROI( img, r );
CopyOf( img, desired_color );
cvReleaseImage( &img );
return true;
}
bool CvvImage::Save( const char* filename )
{
if( !m_img )
return false;
cvSaveImage( filename, m_img );
return true;
}
void CvvImage::Show( const char* window )
{
if( m_img )
cvShowImage( window, m_img );
}
void CvvImage::Show( HDC dc, int x, int y, int w, int h, int from_x, intfrom_y )
{
if( m_img && m_img->depth ==IPL_DEPTH_8U )
{
uchar buffer[sizeof(BITMAPINFOHEADER) + 1024];
BITMAPINFO* bmi = (BITMAPINFO*)buffer;
int bmp_w = m_img->width, bmp_h = m_img->height;
FillBitmapInfo( bmi, bmp_w, bmp_h, Bpp(), m_img->origin );
from_x = MIN( MAX( from_x, 0 ), bmp_w - 1 );
from_y = MIN( MAX( from_y, 0 ), bmp_h - 1 );
int sw = MAX( MIN( bmp_w - from_x, w ), 0 );
int sh = MAX( MIN( bmp_h - from_y, h ), 0 );
SetDIBitsToDevice(
dc, x, y, sw, sh, from_x, from_y, from_y, sh,
m_img->imageData + from_y*m_img->widthStep,
bmi, DIB_RGB_COLORS );
}
}
void CvvImage::DrawToHDC( HDC hDCDst, RECT* pDstRect )
{
if( pDstRect && m_img &&m_img->depth == IPL_DEPTH_8U && m_img->imageData )
{
uchar buffer[sizeof(BITMAPINFOHEADER) + 1024];
BITMAPINFO* bmi = (BITMAPINFO*)buffer;
int bmp_w = m_img->width, bmp_h = m_img->height;
CvRect roi = cvGetImageROI( m_img );
CvRect dst = RectToCvRect( *pDstRect );
if( roi.width == dst.width && roi.height == dst.height )
{
Show( hDCDst, dst.x, dst.y, dst.width, dst.height, roi.x, roi.y );
return;
}
if( roi.width > dst.width )
{
SetStretchBltMode(
hDCDst, // handle todevice context
HALFTONE );
}
else
{
SetStretchBltMode(
hDCDst, // handle todevice context
COLORONCOLOR );
}
FillBitmapInfo( bmi, bmp_w, bmp_h, Bpp(), m_img->origin );
::StretchDIBits(
hDCDst,
dst.x, dst.y, dst.width, dst.height,
roi.x, roi.y, roi.width, roi.height,
m_img->imageData, bmi, DIB_RGB_COLORS, SRCCOPY );
}
}
void CvvImage::Fill( int color )
{
cvSet( m_img,cvScalar(color&255,(color>>8)&255,(color>>16)&255,(color>>24)&255));
}