Fixed compilation errors with OpenCV 4.0.0 (#309)

tools/Camera/main.cpp

@@ -32,6 +32,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "rtabmap/utilite/UDirectory.h"
 #include "rtabmap/utilite/UConversion.h"
 #include <opencv2/highgui/highgui.hpp>
+#include <opencv2/highgui/highgui_c.h>
 #include <stdio.h>
 
 void showUsage()

tools/CameraRGBD/main.cpp

@@ -37,6 +37,8 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "rtabmap/utilite/UConversion.h"
 #include <opencv2/highgui/highgui.hpp>
 #include <opencv2/imgproc/imgproc.hpp>
+#include <opencv2/imgproc/types_c.h>
+#include <opencv2/videoio/videoio_c.h>
 #include <pcl/visualization/cloud_viewer.h>
 #include <stdio.h>
 #include <signal.h>

tools/ImagesJoiner/main.cpp

@@ -138,7 +138,7 @@ int main(int argc, char * argv[])
 
 			cv::Mat roiA(targetImage, cv::Rect( 0, 0, sizeA.width, sizeA.height ));
 			imageA.copyTo(roiA);
-			cv::Mat roiB( targetImage, cvRect( sizeA.width, 0, sizeB.width, sizeB.height ) );
+			cv::Mat roiB( targetImage, cv::Rect( sizeA.width, 0, sizeB.width, sizeB.height ) );
 			imageB.copyTo(roiB);
 
 			if(!cv::imwrite(targetFilePath.c_str(), targetImage))

tools/StereoEval/main.cpp

@@ -37,6 +37,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <rtabmap/utilite/UConversion.h>
 #include <rtabmap/utilite/UTimer.h>
 #include <rtabmap/utilite/UMath.h>
+#include <opencv2/imgproc/types_c.h>
 #include <fstream>
 #include <string>