moving from c++ opencv to c# emgu cv? -

i'm new on c# want translate code c++ c#. program consist on determinig if image white or not that's why try value of pixel , comparing 0.

     int image_blanche(char * str, double prctage){    mat img=imread(str);    int compt=0;    for(int i=0;i<img.rows;i++){         for(int j=0;j<img.cols;j++){             if (img.at<uchar>(i,j)==0){             compt=compt+1;            }        }     }      if (compt< img.rows*img.cols*prctage)     {            return 1;     }    else if (compt> img.rows*img.cols*prctage){         return 0;    } } 

i proced still don't working

      int image_blanche(string str,int prctge)     {         image<bgr, byte> img = new image<bgr, byte>(str);         int compt = 0;         int i;         int j;         (  = 0; < img.width; i++)         {             ( j = 0; j < img.height; j++)             {                 bgr color = img[i, j];                 if ((math.abs(color.green - 0) < 0) &&(math.abs(color.blue - 0) < 0)&&(math.abs(color.red - 0) < 0))                 {                     compt = compt + 1;                 }             }         }          return compt <= img.width*img.height*prctge ? 1 : 0;     } 

any please.

have tried opening image bitmap?

bitmap img = new bitmap(file path); 

then you have method

color c = img.getpixel(x,y) 

well if image pure white, every pixel must equal 255 (for 8 bit greyscale image), or [255 255 255] (for 8 bit color image). loop through rows , columns of image , count values @ each pixel. once have total, compare total of how many there in white image of same size i.e. width*height*255 greyscale image, or width*height*255*3 color image. percentage of whiteness in test image dividing count total white image. i.e. test_img_total / width*height*255*3