halcon学习笔记(8)——QT显示halcon处理的图像和结果
前面讲过如何配置halcon和QT的联合编程，这次分享一下显示halcon处理后的图像，并输出处理后的结果。
第一步：如前面将的配置halcon的lib一样配置好环境；
第二步：将halcon中调试好的程序导出c++的代码。方法是HDevelop 》文件》导出，然后选择c++的输出，utf-8的格式，确定即可；
第三步：打开导出的c++文档，将内容main函数前面的内容全部复制到qt的要实现内容的.cpp文件里；
第四步：将action函数在QMain实现函数里加入编译即可显示halcon的图像在窗口了；
总结一下：上面四步是简单操作的，那么具体来讲如果你想让halcon的图像显示在你的窗口里，并且可以放置位置和想要的大小，那么就要仔细研究一下halcon导出的源代码了；我的办法是将halcon里的action代码修改复制到QMain实现函数里；action里有一句OpenWindow(0,0,hv_Width/7,hv_Height/7,0,"","",&hv_WindowID);其中0代表是就是窗口ID，写0代表当前系统窗口，如上面四步的结果，halcon处理后的图像并不显示在qt窗口里，而是单独显示在另一个窗口里；所以修改那个0，变为qt当前窗口的winID即可，我的具体代码如下：
头文件内容jdbox1.h
#ifndef JDBOX1_H
#define JDBOX1_H
#include
#include "ui_jdbox1.h"
#include"Halcon.h"
#include"halconcpp\HalconCpp.h"
using namespace HalconCpp;
class JDBOX1 : public QMainWindow
{
Q_OBJECT
public:
JDBOX1(QWidget *parent = 0);
~JDBOX1();
void paintEvent(QPaintEvent *);
HalconCpp::HTuple hv_Area, hv_Row, hv_Column, hv_Length, hv_i;//halcon中的参数，我给设为了公共参数，方便传递值
private:
Ui::JDBOX1Class ui;
};
#endif // JDBOX1_H 实现文件内容jdbox1.cpp，代码不整理，直接源码了，想看的了解一下：
#include "jdbox1.h"
#include
#include"Halcon.h"
#include"halconcpp\HalconCpp.h"
#include
#include
#include
#include
using namespace HalconCpp;
// Procedure declarations
// External procedures
// Chapter: Graphics / Text
// Short Description: This procedure displays 'Click 'Run' to continue' in the lower right corner of the screen.
void disp_continue_message (HTuple hv_WindowHandle, HTuple hv_Color, HTuple hv_Box);
// Chapter: Graphics / Text
// Short Description: This procedure writes a text message.
void disp_message (HTuple hv_WindowHandle, HTuple hv_String, HTuple hv_CoordSystem,
HTuple hv_Row, HTuple hv_Column, HTuple hv_Color, HTuple hv_Box);
// Chapter: Graphics / Text
// Short Description: Set font independent of OS
void set_display_font (HTuple hv_WindowHandle, HTuple hv_Size, HTuple hv_Font, HTuple hv_Bold,
HTuple hv_Slant);
// Procedures
// External procedures
// Chapter: Graphics / Text
// Short Description: This procedure displays 'Click 'Run' to continue' in the lower right corner of the screen.
void disp_continue_message (HTuple hv_WindowHandle, HTuple hv_Color, HTuple hv_Box)
{
// Local control variables
HTuple hv_ContinueMessage, hv_Row, hv_Column;
HTuple hv_Width, hv_Height, hv_Ascent, hv_Descent, hv_TextWidth;
HTuple hv_TextHeight;
//This procedure displays 'Press Run (F5) to continue' in the
//lower right corner of the screen.
//It uses the procedure disp_message.
//
//Input parameters:
//WindowHandle: The window, where the text shall be displayed
//Color: defines the text color.
// If set to '' or 'auto', the currently set color is used.
//Box: If set to 'true', the text is displayed in a box.
//
hv_ContinueMessage = "Press Run (F5) to continue";
GetWindowExtents(hv_WindowHandle, &hv_Row, &hv_Column, &hv_Width, &hv_Height);
GetStringExtents(hv_WindowHandle, (" "+hv_ContinueMessage)+" ", &hv_Ascent, &hv_Descent,
&hv_TextWidth, &hv_TextHeight);
disp_message(hv_WindowHandle, hv_ContinueMessage, "window", (hv_Height-hv_TextHeight)-12,
(hv_Width-hv_TextWidth)-12, hv_Color, hv_Box);
return;
}
// Chapter: Graphics / Text
// Short Description: This procedure writes a text message.
void disp_message (HTuple hv_WindowHandle, HTuple hv_String, HTuple hv_CoordSystem,
HTuple hv_Row, HTuple hv_Column, HTuple hv_Color, HTuple hv_Box)
{
// Local control variables
HTuple hv_Red, hv_Green, hv_Blue, hv_Row1Part;
HTuple hv_Column1Part, hv_Row2Part, hv_Column2Part, hv_RowWin;
HTuple hv_ColumnWin, hv_WidthWin, hv_HeightWin, hv_MaxAscent;
HTuple hv_MaxDescent, hv_MaxWidth, hv_MaxHeight, hv_R1;
HTuple hv_C1, hv_FactorRow, hv_FactorColumn, hv_Width;
HTuple hv_Index, hv_Ascent, hv_Descent, hv_W, hv_H, hv_FrameHeight;
HTuple hv_FrameWidth, hv_R2, hv_C2, hv_DrawMode, hv_Exception;
HTuple hv_CurrentColor;
//This procedure displays text in a graphics window.
//
//Input parameters:
//WindowHandle: The WindowHandle of the graphics window, where
// the message should be displayed
//String: A tuple of strings containing the text message to be displayed
//CoordSystem: If set to 'window', the text position is given
// with respect to the window coordinate system.
// If set to 'image', image coordinates are used.
// (This may be useful in zoomed images.)
//Row: The row coordinate of the desired text position
// If set to -1, a default value of 12 is used.
//Column: The column coordinate of the desired text position
// If set to -1, a default value of 12 is used.
//Color: defines the color of the text as string.
// If set to [], '' or 'auto' the currently set color is used.
// If a tuple of strings is passed, the colors are used cyclically
// for each new textline.
//Box: If set to 'true', the text is written within a white box.
//
//prepare window
GetRgb(hv_WindowHandle, &hv_Red, &hv_Green, &hv_Blue);
GetPart(hv_WindowHandle, &hv_Row1Part, &hv_Column1Part, &hv_Row2Part, &hv_Column2Part);
GetWindowExtents(hv_WindowHandle, &hv_RowWin, &hv_ColumnWin, &hv_WidthWin, &hv_HeightWin);
SetPart(hv_WindowHandle, 0, 0, hv_HeightWin-1, hv_WidthWin-1);
//
//default settings
if (0 != (hv_Row==-1))
{
hv_Row = 12;
}
if (0 != (hv_Column==-1))
{
hv_Column = 12;
}
if (0 != (hv_Color==HTuple()))
{
hv_Color = "";
}
//
hv_String = ((""+hv_String)+"").TupleSplit("\n");
//
//Estimate extentions of text depending on font size.
GetFontExtents(hv_WindowHandle, &hv_MaxAscent, &hv_MaxDescent, &hv_MaxWidth, &hv_MaxHeight);
if (0 != (hv_CoordSystem==HTuple("window")))
{
hv_R1 = hv_Row;
hv_C1 = hv_Column;
}
else
{
//transform image to window coordinates
hv_FactorRow = (1.*hv_HeightWin)/((hv_Row2Part-hv_Row1Part)+1);
hv_FactorColumn = (1.*hv_WidthWin)/((hv_Column2Part-hv_Column1Part)+1);
hv_R1 = ((hv_Row-hv_Row1Part)+0.5)*hv_FactorRow;
hv_C1 = ((hv_Column-hv_Column1Part)+0.5)*hv_FactorColumn;
}
//
//display text box depending on text size
if (0 != (hv_Box==HTuple("true")))
{
//calculate box extents
hv_String = (" "+hv_String)+" ";
hv_Width = HTuple();
HTuple end_val57 = (hv_String.TupleLength())-1;
HTuple step_val57 = 1;
for (hv_Index=0; hv_Index.Continue(end_val57, step_val57); hv_Index += step_val57)
{
GetStringExtents(hv_WindowHandle, HTuple(hv_String[hv_Index]), &hv_Ascent,
&hv_Descent, &hv_W, &hv_H);
hv_Width = hv_Width.TupleConcat(hv_W);
}
hv_FrameHeight = hv_MaxHeight*(hv_String.TupleLength());
hv_FrameWidth = (HTuple(0).TupleConcat(hv_Width)).TupleMax();
hv_R2 = hv_R1+hv_FrameHeight;
hv_C2 = hv_C1+hv_FrameWidth;
//display rectangles
GetDraw(hv_WindowHandle, &hv_DrawMode);
SetDraw(hv_WindowHandle, "fill");
SetColor(hv_WindowHandle, "light gray");
DispRectangle1(hv_WindowHandle, hv_R1+3, hv_C1+3, hv_R2+3, hv_C2+3);
SetColor(hv_WindowHandle, "white");
DispRectangle1(hv_WindowHandle, hv_R1, hv_C1, hv_R2, hv_C2);
SetDraw(hv_WindowHandle, hv_DrawMode);
}
else if (0 != (hv_Box!=HTuple("false")))
{
hv_Exception = "Wrong value of control parameter Box";
throw HalconCpp::HException(hv_Exception);
}
//Write text.
HTuple end_val78 = (hv_String.TupleLength())-1;
HTuple step_val78 = 1;
for (hv_Index=0; hv_Index.Continue(end_val78, step_val78); hv_Index += step_val78)
{
hv_CurrentColor = ((const HTuple&)hv_Color)[hv_Index%(hv_Color.TupleLength())];
if (0 != (HTuple(hv_CurrentColor!=HTuple("")).TupleAnd(hv_CurrentColor!=HTuple("auto"))))
{
SetColor(hv_WindowHandle, hv_CurrentColor);
}
else
{
SetRgb(hv_WindowHandle, hv_Red, hv_Green, hv_Blue);
}
hv_Row = hv_R1+(hv_MaxHeight*hv_Index);
SetTposition(hv_WindowHandle, hv_Row, hv_C1);
WriteString(hv_WindowHandle, HTuple(hv_String[hv_Index]));
}
//reset changed window settings
SetRgb(hv_WindowHandle, hv_Red, hv_Green, hv_Blue);
SetPart(hv_WindowHandle, hv_Row1Part, hv_Column1Part, hv_Row2Part, hv_Column2Part);
return;
}
// Chapter: Graphics / Text
// Short Description: Set font independent of OS
void set_display_font (HTuple hv_WindowHandle, HTuple hv_Size, HTuple hv_Font, HTuple hv_Bold,
HTuple hv_Slant)
{
// Local control variables
HTuple hv_OS, hv_PreferenceValue, hv_Exception;
HTuple hv_BoldString, hv_SlantString, hv_AllowedFontSizes;
HTuple hv_Distances, hv_Indices, hv_Fonts, hv_FontSelRegexp;
HTuple hv_FontsCourier;
//This procedure sets the text font of the current window with
//the specified attributes.
//It is assumed that following fonts are installed on the system:
//Windows: Courier New, Arial Times New Roman
//Mac OS X: CourierNewPS, Arial, TimesNewRomanPS
//Linux: courier, helvetica, times
//Because fonts are displayed smaller on Linux than on Windows,
//a scaling factor of 1.25 is used the get comparable results.
//For Linux, only a limited number of font sizes is supported,
//to get comparable results, it is recommended to use one of the
//following sizes: 9, 11, 14, 16, 20, 27
//(which will be mapped internally on Linux systems to 11, 14, 17, 20, 25, 34)
//
//Input parameters:
//WindowHandle: The graphics window for which the font will be set
//Size: The font size. If Size=-1, the default of 16 is used.
//Bold: If set to 'true', a bold font is used
//Slant: If set to 'true', a slanted font is used
//
GetSystem("operating_system", &hv_OS);
// dev_get_preferences(...); only in hdevelop
// dev_set_preferences(...); only in hdevelop
if (0 != (HTuple(hv_Size==HTuple()).TupleOr(hv_Size==-1)))
{
hv_Size = 16;
}
if (0 != ((hv_OS.TupleSubstr(0,2))==HTuple("Win")))
{
//Set font on Windows systems
if (0 != (HTuple(HTuple(hv_Font==HTuple("mono")).TupleOr(hv_Font==HTuple("Courier"))).TupleOr(hv_Font==HTuple("courier"))))
{
hv_Font = "Courier New";
}
else if (0 != (hv_Font==HTuple("sans")))
{
hv_Font = "Arial";
}
else if (0 != (hv_Font==HTuple("serif")))
{
hv_Font = "Times New Roman";
}
if (0 != (hv_Bold==HTuple("true")))
{
hv_Bold = 1;
}
else if (0 != (hv_Bold==HTuple("false")))
{
hv_Bold = 0;
}
else
{
hv_Exception = "Wrong value of control parameter Bold";
throw HalconCpp::HException(hv_Exception);
}
if (0 != (hv_Slant==HTuple("true")))
{
hv_Slant = 1;
}
else if (0 != (hv_Slant==HTuple("false")))
{
hv_Slant = 0;
}
else
{
hv_Exception = "Wrong value of control parameter Slant";
throw HalconCpp::HException(hv_Exception);
}
try
{
SetFont(hv_WindowHandle, ((((((("-"+hv_Font)+"-")+hv_Size)+"-*-")+hv_Slant)+"-*-*-")+hv_Bold)+"-");
}
// catch (Exception)
catch (HalconCpp::HException &HDevExpDefaultException)
{
HDevExpDefaultException.ToHTuple(&hv_Exception);
//throw (Exception)
}
}
else if (0 != ((hv_OS.TupleSubstr(0,2))==HTuple("Dar")))
{
//Set font on Mac OS X systems
if (0 != (hv_Bold==HTuple("true")))
{
hv_BoldString = "Bold";
}
else if (0 != (hv_Bold==HTuple("false")))
{
hv_BoldString = "";
}
else
{
hv_Exception = "Wrong value of control parameter Bold";
throw HalconCpp::HException(hv_Exception);
}
if (0 != (hv_Slant==HTuple("true")))
{
hv_SlantString = "Italic";
}
else if (0 != (hv_Slant==HTuple("false")))
{
hv_SlantString = "";
}
else
{
hv_Exception = "Wrong value of control parameter Slant";
throw HalconCpp::HException(hv_Exception);
}
if (0 != (HTuple(HTuple(hv_Font==HTuple("mono")).TupleOr(hv_Font==HTuple("Courier"))).TupleOr(hv_Font==HTuple("courier"))))
{
hv_Font = "CourierNewPS";
}
else if (0 != (hv_Font==HTuple("sans")))
{
hv_Font = "Arial";
}
else if (0 != (hv_Font==HTuple("serif")))
{
hv_Font = "TimesNewRomanPS";
}
if (0 != (HTuple(hv_Bold==HTuple("true")).TupleOr(hv_Slant==HTuple("true"))))
{
hv_Font = ((hv_Font+"-")+hv_BoldString)+hv_SlantString;
}
hv_Font += HTuple("MT");
try
{
SetFont(hv_WindowHandle, (hv_Font+"-")+hv_Size);
}
// catch (Exception)
catch (HalconCpp::HException &HDevExpDefaultException)
{
HDevExpDefaultException.ToHTuple(&hv_Exception);
//throw (Exception)
}
}
else
{
//Set font for UNIX systems
hv_Size = hv_Size*1.25;
hv_AllowedFontSizes.Clear();
hv_AllowedFontSizes[0] = 11;
hv_AllowedFontSizes[1] = 14;
hv_AllowedFontSizes[2] = 17;
hv_AllowedFontSizes[3] = 20;
hv_AllowedFontSizes[4] = 25;
hv_AllowedFontSizes[5] = 34;
if (0 != ((hv_AllowedFontSizes.TupleFind(hv_Size))==-1))
{
hv_Distances = (hv_AllowedFontSizes-hv_Size).TupleAbs();
TupleSortIndex(hv_Distances, &hv_Indices);
hv_Size = ((const HTuple&)hv_AllowedFontSizes)[HTuple(hv_Indices[0])];
}
if (0 != (HTuple(hv_Font==HTuple("mono")).TupleOr(hv_Font==HTuple("Courier"))))
{
hv_Font = "courier";
}
else if (0 != (hv_Font==HTuple("sans")))
{
hv_Font = "helvetica";
}
else if (0 != (hv_Font==HTuple("serif")))
{
hv_Font = "times";
}
if (0 != (hv_Bold==HTuple("true")))
{
hv_Bold = "bold";
}
else if (0 != (hv_Bold==HTuple("false")))
{
hv_Bold = "medium";
}
else
{
hv_Exception = "Wrong value of control parameter Bold";
throw HalconCpp::HException(hv_Exception);
}
if (0 != (hv_Slant==HTuple("true")))
{
if (0 != (hv_Font==HTuple("times")))
{
hv_Slant = "i";
}
else
{
hv_Slant = "o";
}
}
else if (0 != (hv_Slant==HTuple("false")))
{
hv_Slant = "r";
}
else
{
hv_Exception = "Wrong value of control parameter Slant";
throw HalconCpp::HException(hv_Exception);
}
try
{
SetFont(hv_WindowHandle, ((((((("-adobe-"+hv_Font)+"-")+hv_Bold)+"-")+hv_Slant)+"-normal-*-")+hv_Size)+"-*-*-*-*-*-*-*");
}
// catch (Exception)
catch (HalconCpp::HException &HDevExpDefaultException)
{
HDevExpDefaultException.ToHTuple(&hv_Exception);
if (0 != (HTuple((hv_OS.TupleSubstr(0,4))==HTuple("Linux")).TupleAnd(hv_Font==HTuple("courier"))))
{
QueryFont(hv_WindowHandle, &hv_Fonts);
hv_FontSelRegexp = (("^-[^-]*-[^-]*[Cc]ourier[^-]*-"+hv_Bold)+"-")+hv_Slant;
hv_FontsCourier = (hv_Fonts.TupleRegexpSelect(hv_FontSelRegexp)).TupleRegexpMatch(hv_FontSelRegexp);
if (0 != ((hv_FontsCourier.TupleLength())==0))
{
hv_Exception = "Wrong font name";
//throw (Exception)
}
else
{
try
{
SetFont(hv_WindowHandle, ((HTuple(hv_FontsCourier[0])+"-normal-*-")+hv_Size)+"-*-*-*-*-*-*-*");
}
// catch (Exception)
catch (HalconCpp::HException &HDevExpDefaultException)
{
HDevExpDefaultException.ToHTuple(&hv_Exception);
//throw (Exception)
}
}
}
//throw (Exception)
}
}
// dev_set_preferences(...); only in hdevelop
return;
}
JDBOX1::JDBOX1(QWidget *parent)
: QMainWindow(parent)
{
ui.setupUi(this);
// Local iconic variables
HObject ho_Image, ho_GrayImage, ho_ImageMean;
HObject ho_ImageGauss, ho_Regions, ho_SelectedRegions2;
HObject ho_ConvexRegions, ho_SelectedRegions1, ho_SelectedRegions;
HTuple hv_Width, hv_Height, hv_WindowID, hv_Phi;
ReadImage(&ho_Image, "D:/JDBOX5.jpg");
GetImageSize(ho_Image, &hv_Width, &hv_Height);
if (HDevWindowStack::IsOpen())
CloseWindow(HDevWindowStack::Pop());
SetWindowAttr("background_color","black");
Hlong winID=(Hlong)this->winId();//添加位置qt混合添加段
OpenWindow(0,0,hv_Width/7,hv_Height/7,winID,"","",&hv_WindowID);//修改这句 添加winID
HDevWindowStack::Push(hv_WindowID);
if (HDevWindowStack::IsOpen())
DispObj(ho_Image, HDevWindowStack::GetActive());
set_display_font(hv_WindowID, 14, "mono", "true", "false");
disp_continue_message(hv_WindowID, "black", "true");
Rgb1ToGray(ho_Image, &ho_GrayImage);
Threshold(ho_GrayImage, &ho_Regions, 130, 238);
Connection(ho_Regions, &ho_Regions);
SelectShape(ho_Regions, &ho_SelectedRegions2, "area", "and", 506286, 751910);
if (HDevWindowStack::IsOpen())
SetDraw(HDevWindowStack::GetActive(),"fill");
if (HDevWindowStack::IsOpen())
SetColored(HDevWindowStack::GetActive(),12);
if (HDevWindowStack::IsOpen())
DispObj(ho_SelectedRegions2, HDevWindowStack::GetActive());
disp_continue_message(hv_WindowID, "black", "true");
if (HDevWindowStack::IsOpen())
DispObj(ho_Image, HDevWindowStack::GetActive());
if (HDevWindowStack::IsOpen())
SetColor(HDevWindowStack::GetActive(),"green");
if (HDevWindowStack::IsOpen())
DispObj(ho_SelectedRegions2, HDevWindowStack::GetActive());
OrientationRegion(ho_SelectedRegions2, &hv_Phi);
AreaCenter(ho_SelectedRegions2, &hv_Area, &hv_Row, &hv_Column);
if (HDevWindowStack::IsOpen())
SetLineWidth(HDevWindowStack::GetActive(),3);
if (HDevWindowStack::IsOpen())
SetDraw(HDevWindowStack::GetActive(),"margin");
hv_Length = 200;
HTuple end_val38 = (hv_Phi.TupleLength())-1;
HTuple step_val38 = 1;
for (hv_i=0; hv_i.Continue(end_val38, step_val38); hv_i += step_val38)
{
if (HDevWindowStack::IsOpen())
SetColor(HDevWindowStack::GetActive(),"white");
//disp_arrow (WindowID, Row[i], Column[i], Row[i] - Length * sin(Phi[i]), Column[i] + Length * cos(Phi[i]), 4)
DispCross(hv_WindowID, HTuple(hv_Row[hv_i]), HTuple(hv_Column[hv_i]), 200, HTuple(hv_Phi[hv_i]));
disp_message(hv_WindowID, ((HTuple(hv_Phi[hv_i]).TupleDeg()).TupleString("3.1f"))+" deg",
"image", HTuple(hv_Row[hv_i]), HTuple(hv_Column[hv_i])-100, "black", "false");
}
setFixedSize(hv_Height/7+200,hv_Height/7); // 禁止改变窗口大小。
}
void JDBOX1::paintEvent(QPaintEvent *)
{
QPainter painter(this);
// painter.drawLine(0,0,200,300);
// painter.drawEllipse(100,100,50,50);
// painter.setBrush(Qt::red);
// painter.drawRect(120,120,30,30);
// QPoint p( 500, 500);
// 设置字体：微软雅黑、点大小50、斜体
//painter.setPen(QColor(0, 160, 230));
painter.setPen(QColor(0, 0, 0));
QFont font;
font.setFamily("Microsoft YaHei");
//font.setFamily("simsun");
font.setPointSize(10);
// font.setItalic(true);
painter.setFont(font);
painter.drawText(450,20,QString::fromLocal8Bit("图上箱子的坐标及面积:"));
for(int i=0;i<=7;i=i++)
{
QString Xword=QString::fromLocal8Bit("x轴%1: %2").arg(i).arg( QString::number( hv_Row[i].D ()));
painter.drawText(450,50+30*i,Xword);
}
for(int i=0;i<=7;i=i++)
{
QString Xword=QString::fromLocal8Bit("y轴%1: %2").arg(i).arg( QString::number( hv_Column[i].D ()));
painter.drawText(550,50+30*i,Xword);
}
for(int i=0;i<=7;i=i++)
{
QString Xword=QString::fromLocal8Bit("面积%1: %2").arg(i).arg( QString::number( hv_Area[i].D ()));
painter.drawText(650,50+30*i,Xword);
}
}
JDBOX1::~JDBOX1()
{
} 
处理后的效果图：
