1 files changed, 132 insertions, 0 deletions
diff --git a/sci_gateway/cpp/opencv_rgb2ntsc.cpp b/sci_gateway/cpp/opencv_rgb2ntsc.cpp
new file mode 100644
index 0000000..00be9cd
--- /dev/null
+++ b/sci_gateway/cpp/opencv_rgb2ntsc.cpp
@@ -0,0 +1,132 @@
+/*  function-rgb2lab
+ Author :Tess Zacharias      */
+#include <numeric>
+#include "opencv2/core/core.hpp"
+#include "opencv2/highgui/highgui.hpp"
+#include "opencv2/opencv.hpp"
+#include <iostream>
+#include<stdio.h>
+#include <sciprint.h>
+#include<string.h>
+using namespace cv;
+using namespace std;
+  extern "C"
+  {
+  #include "api_scilab.h"
+  #include "Scierror.h"
+  #include "BOOL.h"
+  #include <localization.h>
+  #include "../common.h"
+  #define REF_X .95047; // Observer= 2°, Illuminant= D65
+  #define REF_Y 1.00000;
+  #define REF_Z 1.08883;
+struct Color
+{
+    float R,G,B,Y,I,Q;
+};
+Color rgb2ntsc(float R, float G, float B)
+{
+        
+         float r=R/255.0;
+         float g=G/255.0;
+         float b=B/255.0;
+         float y =  0.299*r     + 0.587*g + 0.114*b;
+         float i =  0.596*r     -0.274 *g - 0.322 *b;
+         float q =  0.211*r     - 0.523*g + 0.312 *b;
+         
+            
+    Color ntsc;
+    ntsc.Y= y;
+    ntsc.I= i;
+    ntsc.Q= q;
+    return ntsc;
+
+} 
+
+int opencv_rgb2ntsc(char *fname, unsigned long fname_len)
+    {
+    // Error management variable
+        SciErr sciErr;
+    //variable info
+	int iRows		= 0;
+	int iCols		= 0;
+        int piRows		= 0;
+	int piCols		= 0;
+        int* piAddr2=NULL;
+        int* piAddr1=NULL;
+        int* piAddr3=NULL;
+        int* piaddr=NULL;
+        char *value=NULL;
+        int* piLen		= NULL;
+        char **val;
+        int i,j;
+        int error;
+        Color out;
+        double check;
+        Mat img;
+        float R,G,B;
+        int *piAddrNew = NULL;                      
+        CheckOutputArgument(pvApiCtx,1,1);
+        int m=0;
+        retrieveImage(img,1);
+        double *r1,*g1,*b1;
+        r1=(double *)malloc(sizeof(double)*img.rows*img.cols);
+        g1=(double *)malloc(sizeof(double)*img.rows*img.cols);
+        b1=(double *)malloc(sizeof(double)*img.rows*img.cols);
+        for(int i=0;i<img.rows;i++)  
+          {
+            for(int j=0;j<img.cols;j++)
+               {
+                  Vec3b intensity = img.at<Vec3b>(i,j);
+                  R= intensity.val[2];
+                  G= intensity.val[1];
+                  B= intensity.val[0];
+                  out=rgb2ntsc(R,G,B);
+                  r1[m]=out.Y;
+                  g1[m]=out.I;
+                  b1[m++]=out.Q;  
+                  }
+          }
+    //creating the list that will be passed to the Scilab enviroment
+    sciErr = createList(pvApiCtx, nbInputArgument(pvApiCtx) + 1, 3, &piAddrNew);
+    if(sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+
+
+    //Adding the R value matrix to the list
+    //Syntax : createMatrixOfInteger32InList(void* _pvCtx, int _iVar, int* _piParent, int _iItemPos, int _iRows, int _iCols, const int* _piData)
+    sciErr = createMatrixOfDoubleInList(pvApiCtx, nbInputArgument(pvApiCtx)+1 , piAddrNew, 1, img.rows,img.cols, r1);
+    free(r1);
+    if(sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+
+    //Adding the G value matrix to the list
+    sciErr = createMatrixOfDoubleInList(pvApiCtx, nbInputArgument(pvApiCtx)+1 , piAddrNew, 2, img.rows, img.cols, g1);
+    free(g1);
+    if(sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+
+    //Adding the B value matrix to the list
+    sciErr = createMatrixOfDoubleInList(pvApiCtx, nbInputArgument(pvApiCtx)+1 , piAddrNew, 3, img.rows, img.cols, b1);
+    free(b1);
+    if(sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }  
+
+           // free(checker);  
+            AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1;
+            ReturnArguments(pvApiCtx);            
+            return 0;                
+}
+}