calcSobel_dX gcov

        -:    0:Source:common/calcSobel_dX.c
        -:    0:Graph:calcSobel_dX.gcno
        -:    0:Data:calcSobel_dX.gcda
        -:    0:Runs:1
        -:    0:Programs:1
        -:    1:/********************************
        -:    2:Author: Sravanthi Kota Venkata
        -:    3:********************************/
        -:    4:
        -:    5:#include <stdio.h>
        -:    6:#include <stdlib.h>
        -:    7:#include "sdvbs_common.h"
        -:    8:
        9:    9:F2D* calcSobel_dX(F2D* imageIn)
        -:   10:{
        -:   11:    int rows, cols;
        -:   12:    F2D *kernel_1, *kernel_2;
        -:   13:    float temp;
        -:   14:    int kernelSize, startCol, endCol, halfKernel, startRow, endRow, i, j, kernelSum;
        -:   15:    int k, kernelSum_1, kernelSum_2;
        -:   16:    F2D *imageOut, *tempOut;
        -:   17:
        9:   18:    rows = imageIn->height;
        9:   19:    cols = imageIn->width;
        -:   20:
        9:   21:    imageOut = fSetArray(rows, cols, 0);
        9:   22:    tempOut = fSetArray(rows, cols, 0);
        9:   23:    kernel_1 = fMallocHandle(1, 3);
        9:   24:    kernel_2 = fMallocHandle(1, 3);
        -:   25:
        9:   26:    asubsref(kernel_1,0) = 1;
        9:   27:    asubsref(kernel_1,1) = 2;
        9:   28:    asubsref(kernel_1,2) = 1;
        -:   29:
        -:   30:    kernelSize = 3;
        -:   31:    kernelSum_1 = 4;
        -:   32:
        9:   33:    asubsref(kernel_2,0) = 1;
        9:   34:    asubsref(kernel_2,1) = 0;
        9:   35:    asubsref(kernel_2,2) = -1;
        -:   36:
        -:   37:    kernelSum_2 = 2;
        -:   38:
        -:   39:    startCol = 1;
        9:   40:    endCol = cols - 1;
        -:   41:    halfKernel = 1;
        -:   42:
        -:   43:    startRow = 1;
        9:   44:    endRow = rows - 1;
        -:   45:
     7551:   46:    for(i=startRow; i<endRow; i++)
        -:   47:    {
 12399636:   48:        for(j=startCol; j<endCol; j++)
        -:   49:        {
        -:   50:            temp = 0;
 37198908:   51:            for(k=-halfKernel; k<=halfKernel; k++)
        -:   52:            {
 37198908:   53:                temp += subsref(imageIn,i,j+k) * asubsref(kernel_2,k+halfKernel);
        -:   54:            }
 12399636:   55:            subsref(tempOut,i,j) = temp/kernelSum_2;
        -:   56:        }
        -:   57:    }
        -:   58:
     7542:   59:    for(i=startRow; i<endRow; i++)
        -:   60:    {
 12399636:   61:        for(j=startCol; j<endCol; j++)
        -:   62:        {
        -:   63:            temp = 0;
 37198908:   64:            for(k=-halfKernel; k<=halfKernel; k++)
        -:   65:            {
 37198908:   66:                temp += subsref(tempOut,(i+k),j) * asubsref(kernel_1,k+halfKernel);
        -:   67:            }
 12399636:   68:            subsref(imageOut,i,j) = temp/(float)kernelSum_1;
        -:   69:        }
        -:   70:    }
        -:   71:
        9:   72:    fFreeHandle(tempOut);
        9:   73:    fFreeHandle(kernel_1);
        9:   74:    fFreeHandle(kernel_2);
        9:   75:    return imageOut;
        -:   76:
        -:   77:}