starting to wrap opencv

1 files changed, 69 insertions, 0 deletions

diff --git a/opencv/hello-opencv.cpp b/opencv/hello-opencv.cpp
new file mode 100644
index 0000000..ed8de6b
--- /dev/null
+++ b/opencv/hello-opencv.cpp
@@ -0,0 +1,69 @@
+////////////////////////////////////////////////////////////////////////
+//
+// hello-world.cpp
+//
+// This is a simple, introductory OpenCV program. The program reads an
+// image from a file, inverts it, and displays the result. 
+//
+////////////////////////////////////////////////////////////////////////
+
+//plan:
+//incorporate opencv images into the Rotor::image class
+//initially:: update to support existing operations
+//should all functionality that accesses image pixels be a part of the image class?
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <cv.h>
+#include <highgui.h>
+
+#include "cvimage.h"
+
+
+int main(int argc, char *argv[])
+{
+  IplImage* img = 0; 
+  int height,width,step,channels;
+  uchar *data;
+  int i,j,k;
+
+  if(argc<2){
+    printf("Usage: main <image-file-name>\n\7");
+    exit(0);
+  }
+
+  // load an image  
+  img=cvLoadImage(argv[1]);
+  if(!img){
+    printf("Could not load image file: %s\n",argv[1]);
+    exit(0);
+  }
+
+  // get the image data
+  height    = img->height;
+  width     = img->width;
+  step      = img->widthStep;
+  channels  = img->nChannels;
+  data      = (uchar *)img->imageData;
+  printf("Processing a %dx%d image with %d channels\n",height,width,channels); 
+
+  // create a window
+  cvNamedWindow("mainWin", CV_WINDOW_AUTOSIZE); 
+  cvMoveWindow("mainWin", 100, 100);
+
+  // invert the image
+  for(i=0;i<height;i++) for(j=0;j<width;j++) for(k=0;k<channels;k++)
+    data[i*step+j*channels+k]=255-data[i*step+j*channels+k];
+
+  // show the image
+  cvShowImage("mainWin", img );
+
+  // wait for a key
+  cvWaitKey(0);
+
+  // release the image
+  cvReleaseImage(&img );
+  return 0;
+}