When I run this code I get the stackOverflow error

Question

I have to get the values and I have to match the pixels values in my image. But When I run this code I get the StackOverflowError .

How to increase the stack memory in java to overcome this issue.

public class ImageToText {
    private final int ALPHA = 24;
    private final int RED = 16;
    private final int GREEN = 8;
    private final int BLUE = 0;

    public static void main(String args[]) throws IOException {
        File file = new File("C:\\image.jpg");
        BufferedImage image = ImageIO.read(file);
        int color21=image.getHeight();
        int color31=image.getWidth();
        getRGBA(image,color31,color21);

        for (int i = 0; i < image.getHeight(); i++) 
        {
            for (int j = 0; j < image.getWidth(); j++)
            {
                int color = image.getRGB(j, i);
                int color2=image.getHeight();
                int color3=image.getWidth();
                System.out.println(color2);
            }
        }
    }

    public static int[] getRGBA(BufferedImage img, int x, int y)
    {
        int[] color = new int[4];
        int[] originalPixel =  getRGBA(img,x,y);

        for (int i=0;i<img.getWidth();i++)
        {
            for (int j=0;j<img.getHeight();j++)
            {
                int[] color1 =  getRGBA(img,i,j);

                if (originalPixel[0] == color1[0] && originalPixel[1] == color1[1] && originalPixel[2] == color1[2] && originalPixel[3] == color1[3])
                {
                    img.setRGB(i, j,Color.red.getRGB());
                }
                else
                {
                    img.setRGB(i, j,Color.yellow.getRGB());
                }
            }
        }
        return color;
    }
}

How to overcome this Error?

Answer 1

getRGBA calls itself infinitely:

public static int[] getRGBA(BufferedImage img, int x, int y)

  {

int[] color = new int[4];


 int[] originalPixel =  getRGBA(img,x,y);

This sort of thing causes a StackOverflowError.

Consider adding the base case of recursion , so that your code doesn't always call itself and has a "way out".

Answer 2

This line in function getRGBA :

int[] originalPixel =  getRGBA(img,x,y);

This should cause infinite recursion.

Answer 3

From the main method you are calling the below getRGBA method. Inside the getRGBA method you are calling the method again. This makes a cyclic/recursive execution with no exit criteria.

public static int[] getRGBA(BufferedImage img, int x, int y) {
    int[] color = new int[4];
    int[] originalPixel =  getRGBA(img,x,y);
}

You must add some condition around the method call so that the recursive execution stops. Your feature is not clear enough to suggest what condition you can put.

public static int[] getRGBA(BufferedImage img, int x, int y) {
    int[] color = new int[4];
    if (some condition which becomes true) {
        int[] originalPixel =  getRGBA(img,x,y);
    }
}