为什么进行循环打印会出现意外结果？

Question

I am scanning a black and white photo that is 100x100 pixels, trying to print every x and y coordinate (pixel by pixel) based on it being black or white. As the print statement is running, I can see the expected result in the console, but once it finishes, it begins producing a value of 0 for every outcome value and only prints north of x 95. Can you please explain how to fix this?

public class BW
{

public static void main(String[] args) {

try {    

BufferedImage original = ImageIO.read(new File("maze.jpg"));
int red;

int[][] outcome = new int[original.getHeight()][original.getWidth()];
for(int i=0; i<original.getHeight(); i++)
{
for(int j=0; j<original.getWidth(); j++)
  {
red = new Color(original.getRGB(i, j)).getRed();

int pixel = 0;
if(red > 1)
{
outcome[i][j] = 255;
System.out.println("x: " + i + " y: " + j + " value: " + outcome[i][j]);
} else {
   outcome[i][j] = 0;
   System.out.println("x: " + i + " y: " + j + " value: " + outcome[i][j]);
} 
}
}

   } catch (IOException e) {e.printStackTrace();}
} 
}

The terminal output is below (it continues until an x of 99 and y if 99, with the y incrementing by 1, and the x switching from 98 to 99 halfway through-

This is a screenshot I took while it was still running, where you can see it was calculating correctly. Once completed, it turns into the image above.

Answer 1

Change

for(int i=0; i<original.getWidth(); i++)
{
for(int j=0; j<original.getHeight(); j++)
{

to

for(int i=0; i<original.getHeight(); i++)
{
   for(int j=0; j<original.getWidth(); j++)
   {