First CommitHEADmaster

1 files changed, 77 insertions, 0 deletions

diff --git a/sci_gateway1/cpp/opencv_DCT.cpp b/sci_gateway1/cpp/opencv_DCT.cpp
new file mode 100644
index 0000000..087c61b
--- /dev/null
+++ b/sci_gateway1/cpp/opencv_DCT.cpp
@@ -0,0 +1,77 @@
+/********************************************************
+Author: Deepshikha
+return_image = DCT(source_image)
+********************************************************/
+
+#include <numeric>
+#include "opencv2/core/core.hpp"
+#include "opencv2/highgui/highgui.hpp"
+#include "opencv2/opencv.hpp"
+#include <iostream>
+#include <vector>
+
+using namespace cv;
+using namespace std;
+
+extern "C"{
+  #include "api_scilab.h"
+  #include "Scierror.h"
+  #include "BOOL.h"
+  #include <localization.h>
+  #include "../common.h"
+  
+  int opencv_DCT(char *fname, unsigned long fname_len){
+
+    /// Error management variable
+    SciErr sciErr;
+    
+    /// Variables
+    int i, j;
+    int flags = 0;
+
+    /// checking input argument
+    CheckInputArgument(pvApiCtx, 1, 1);
+    CheckOutputArgument(pvApiCtx, 1, 1);
+
+
+    Mat image;
+    retrieveImage(image, 1);
+
+    if(image.channels() != 1){
+          Scierror(999, "Input should be single channel\n"); 
+          return 0; 
+    }
+    
+    /// even sized rows and columns required
+    if(image.rows%2 != 0){
+      Scierror(999, "%s:  Odd number of rows found\n");
+      return 0;
+    }
+    
+    if(image.cols%2 != 0){
+      Scierror(999, "%s:  Odd number of columns found\n");
+      return 0;
+    }
+
+    /// transformed_idct stores the transformed image
+    Mat new_image(image.rows, image.cols, image.type());
+    dct(image, new_image, flags);
+
+    string tempstring = type2str(new_image.type());
+    char *checker;
+    checker = (char *)malloc(tempstring.size() + 1);
+    memcpy(checker, tempstring.c_str(), tempstring.size() + 1);
+    returnImage(checker, new_image, 1);
+    free(checker);
+
+    //Assigning the list as the Output Variable
+    AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1;
+
+    //Returning the Output Variables as arguments to the Scilab environment
+    ReturnArguments(pvApiCtx);
+    return 0;
+
+  }
+/* ==================================================================== */
+}
+