1 files changed, 11 insertions, 0 deletions
diff --git a/rotord/src/cvimage.cpp b/rotord/src/cvimage.cpp
index 0bf30a6..74a21dd 100644
--- a/rotord/src/cvimage.cpp
+++ b/rotord/src/cvimage.cpp
@@ -200,4 +200,15 @@ namespace Rotor {
 		other->rgb=rgb/amount;
 		return other;
 	}
+	cv::Mat& Image::get_mipmap(int level){
+		if (mipmaps.find(level)!=mipmaps.end()) return mipmaps[level];
+		//levels start at 1
+		int nw=max(1.0,w/pow(2,level));
+		int nh=max(1.0,h/pow(2,level));
+		cv::Mat mip;;
+		cv::resize(rgb,mip,cv::Size(nw,nh),0,0,cv::INTER_AREA );
+		mipmaps[level]=mip;
+		return mipmaps[level];
+		
+	}
 }