public static void main(String[] args) {
if (args.length < 1) {
System.out.printf("Usage: ImageProcessor205BW <input image>\n");
return;
}
String input_filename = args[0];
if (!input_filename.toLowerCase().endsWith(".png"))
ErrorExit("Input file must be a PNG image.\n");
String output_filename = null;
if (args.length > 1) output_filename = args[1];
else output_filename = input_filename.substring(0, input_filename.length() - 4) + "_output.png";
Color[][] inputPixels = load_image(input_filename);
int[][] inputIntensities = ColoursToIntensities(inputPixels);
int[][] resultIntensities = ProcessImage(inputIntensities);
Color[][] resultPixels = IntensitiesToColours(resultIntensities);
save_image(resultPixels, output_filename);
}
