ROI Region Image Overlay & primary image Blending Synthesis example

Encapsulating the addweighted function and the ROI function into the roi_linearblending

//---------------------------------"roi_linearblending ()"-------------------------------------//function Name: roi_linearblending ()//Description: Linear mixed Implementation function that specifies the region linear image blending. Use the cv::addweighted () function to define//ROI for area of interest, for linear blending of custom regions//--------------------------------------------------------------------------------------------  BOOLroi_linearblending () {//"1" reads the imageMat srcimage4= Imread ("dota_pa.jpg",1); Mat Logoimage= Imread ("dota_logo.jpg"); if(!srcimage4.data) {printf ("Read SrcImage4 Error! \ n");return false; } if(!logoimage.data) {printf ("Read Logoimage Error! \ n");return false; } //"2" defines a mat type and sets the ROI area for itMat Imageroi; //Method OneImageroi=srcimage4 (Rect ( $, -, logoimage.cols,logoimage.rows)); //Method Two//imageroi=srcimage4 (Range (250,250+logoimage.rows), Range (200,200+logoimage.cols)); //"3" Add the logo to the originalAddweighted (Imageroi,0.5, Logoimage,0.3,0., Imageroi); //"4" Display resultsNamedwindow ("<1> Regional linear image blending sample window"); Imshow ("<1> Regional linear image blending sample window", SrcImage4); return true; }  

#include <cv.h>#include#include<iostream>//-----------------------------------the Namespace Declarations section---------------------------------------//Description: Contains the namespace used by the program//-----------------------------------------------------------------------------------------------    using namespaceCV; using namespacestd; //-----------------------------------the Global Function declaration Section--------------------------------------//Description: global function Declaration//-----------------------------------------------------------------------------------------------  BOOLRoi_addimage (); BOOLlinearblending (); BOOLroi_linearblending (); //-----------------------------------the main () function--------------------------------------------//Description: The entry function of the console application, our program starts here//-----------------------------------------------------------------------------------------------  intMain () {System ("Color 5E"); if(Roi_addimage () && linearblending () &&roi_linearblending ()) {cout<<endl<<"uh. OK, I got the image you need! : )"; } waitkey (0); return 0; }     //----------------------------------the Roi_addimage () function----------------------------------//function Name: Roi_addimage ()//Description: Image overlay with ROI in region of interest//----------------------------------------------------------------------------------------------  BOOLRoi_addimage () {//"1" read in imageMat srcimage1= Imread ("Anne. jpg"); Mat Logoimage= Imread ("Lol.jpg"); if(!srcimage1.data) {printf ("your sister, read SRCIMAGE1 Error! \ n");return false; } if(!logoimage.data) {printf ("your sister, read Logoimage Error! \ n");return false; } //"2" defines a mat type and sets the ROI area for itMat imageroi= SrcImage1 (Rect ( -, -, logoimage.cols,logoimage.rows)); //"3" load mask (must be a grayscale image)Mat mask= Imread ("dota_logo.jpg",0); //"4" copies the mask to ROILogoimage.copyto (Imageroi,mask); //"5" Display resultsNamedwindow ("<1> using ROI to implement Image Overlay sample window"); Imshow ("<1> using ROI to implement Image Overlay sample window", SrcImage1); return true; }        //---------------------------------the linearblending () function-------------------------------------//function Name: linearblending ()//Description: Using the cv::addweighted () function to achieve linear image blending//--------------------------------------------------------------------------------------------  BOOLlinearblending () {//"0" defines some local variables       DoubleAlphavalue =0.5; DoubleBetavalue;            Mat SrcImage2, SrcImage3, dstimage; //"1" read the image (two images must be of the same type and size)Srcimage2= Imread ("Big Chill. jpg"); SrcImage3= Imread ("Xiaohan. jpg"); if(!srcimage2.data) {printf ("Read SrcImage2 Error! \ n");return false; } if(!srcimage3.data) {printf ("Read SrcImage3 Error! \ n");return false; } //"2" for image blending weighted operationBetavalue= (1.0-alphavalue); Addweighted (SrcImage2, Alphavalue, SrcImage3, Betavalue,0.0, Dstimage); //"3" creates and displays the original windowNamedwindow ("<2> Linear Mixing Example Window "original"",1); Imshow ("<2> Linear Mixing Example Window "original"", SrcImage2); Namedwindow ("<3> Linear Mixed Sample window """,1); Imshow ("<3> Linear Mixed Sample window """, Dstimage); return true; }     //---------------------------------"roi_linearblending ()"-------------------------------------//function Name: roi_linearblending ()//Description: Linear mixed Implementation function that specifies the region linear image blending. Use the cv::addweighted () function to define//ROI for area of interest, for linear blending of custom regions//--------------------------------------------------------------------------------------------  BOOLroi_linearblending () {//"1" reads the imageMat srcimage4= Imread ("Anne. jpg",1); Mat Logoimage= Imread ("lol.jpg"); if(!srcimage4.data) {printf ("Read SrcImage4 Error! \ n");return false; } if(!logoimage.data) {printf ("Read Logoimage Error! \ n");return false; } //"2" defines a mat type and sets the ROI area for itMat Imageroi; //Method OneImageroi=srcimage4 (Rect ( -, -, logoimage.cols,logoimage.rows)); //"3" Add the logo to the originalAddweighted (Imageroi,0.5, Logoimage,0.3,0., Imageroi); //"4" Display resultsNamedwindow ("<4> Regional linear image blending sample window"); Imshow ("<4> Regional linear image blending sample window", SrcImage4); return true; }

The first is the console window modified by the background color:

Then there are four, in turn:

ROI Region Image Overlay & primary image Blending Synthesis example