From f533df23fb1cd3044aaa02bf74625e9b53c032c1 Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Thu, 23 Jan 2014 17:57:37 +0000
Subject: mosaic node

---
 rotord/src/cvimage.h | 32 ++++++++++++++++++++++++++++++--
 1 file changed, 30 insertions(+), 2 deletions(-)

(limited to 'rotord/src/cvimage.h')

diff --git a/rotord/src/cvimage.h b/rotord/src/cvimage.h
index b356f82..25cf3e8 100644
--- a/rotord/src/cvimage.h
+++ b/rotord/src/cvimage.h
@@ -218,10 +218,38 @@ namespace Rotor {
 				*/
 				return t;
 			}
-			void crop(int _w,int _h){ //change borders, crop/ extend
+			void crop(int _w,int _h){ //change borders, crop/ extend, centred
+				cv::Mat source;
+				int X,Y,W,H;
+				//do crop part
 				if ( _w<w||_h<h){
-
+					//create crop rectangle xywh
+					X=Y=0;
+					W=w;
+					H=h;
+					if (_w<w){
+						W=_w;
+						X=(w-_w)/2;
+						w=_w;
+					}
+					if (_h<h){
+						H=_h;
+						Y=(h-_h)/2;
+						h=_h;
+					}
+					cv::Mat cropped;
+					CvRect r=cvRect(X,Y,W,H) ;
+					rgb(r).copyTo(source);
 				}
+				else source=rgb;
+				copyMakeBorder(source,rgb,(_h-h)/2,(_h-h)/2,(_w-w)/2,(_w-w)/2,cv::BORDER_REPLICATE);
+				w=rgb.rows;
+				h=rgb.cols;
+			}
+			void resize(int _w,int _h){
+				cv::resize(rgb,rgb,cv::Size(_w,_h),0,0,cv::INTER_LINEAR );
+				w=rgb.rows;
+				h=rgb.cols;
 			}
 			Image & operator=(const Image &other);
 			//believe these still work, don't know if these optimisations are better than opencvs..
-- 
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