CODEWITHSUNDEEP
javaarraysgraphicsinteger2d
Anderson Green
Anderson Green

Reputation: 31810

Displaying a 2D array of integers as an image in Java

I'm trying to create an application in Java that will print an image based on an array of integers where each integer represents a color. Is there a straightforward way to accomplish this?

public void displayImage(int[][] arr){
    for(int i = 0; i < arr.length; i++){
        for(int j = 0; j < arr[0].length; j++){
            switch(arr[i][j]){
                case 1:
                //print a gray pixel at (i, j) within a frame
                case 0:
                //print a green pixel at (i, j) within a frame
                case 2:
                //print a white pixel at (i, j) within a frame
            }
        }
    }
}

Upvotes: 2

Views: 2231

Answers (1)

trashgod
trashgod

Reputation: 205785

You can use BufferedImage, as shown in this example.

Addendum: The example cited updates the image's underlying WritableRaster using an int array of color components, but setRGB() is convenient if the color is already available.

Upvotes: 6

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