How to form String Using pixel Array and read all characters value of array

问题

I am Creating a binary image from processing ide. i want to use pixel array as a string . when i convert this pixel array to string i can't read String characters. every time i get an error. array index of bound. please help to out of this problem

      for(int y = 0; y < img.height; y++)
       {
         for(int x=0; x < img.width; x++)
          {
                 int i = x+y*img.width;

                 String s = str(i);

                int c = s.charAt(1);

               print(c);
           }
        }

when i run this code in processing software i get an error in console that String Index out of Bound ..

please tell me what i do.

回答1:

Try with s.charAt(0): string indices are zero-based.

来源：https://stackoverflow.com/questions/56752110/how-to-form-string-using-pixel-array-and-read-all-characters-value-of-array