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/*************************************************************************
* Compilation: javac ResizeDemo.java
* Execution: java ResizeDemo input.png columnsToRemove rowsToRemove
* Dependencies: SeamCarver.java SCUtility.java Picture.java Stopwatch.java
* StdDraw.java
*
*
* Read image from file specified as command line argument. Use SeamCarver
* to remove number of rows and columns specified as command line arguments.
* Show the images in StdDraw and print time elapsed to screen.
*
*************************************************************************/
public class ResizeDemo {
public static void main(String[] args)
{
if (args.length != 3)
{
System.out.println("Usage:\njava ResizeDemo [image filename]"
+ " [num cols to remove] [num rows to remove]");
return;
}
Picture inputImg = new Picture(args[0]);
int removeColumns = Integer.parseInt(args[1]);
int removeRows = Integer.parseInt(args[2]);
System.out.printf("image is %d columns by %d rows\n",
inputImg.width(), inputImg.height());
SeamCarver sc = new SeamCarver(inputImg);
Stopwatch sw = new Stopwatch();
for (int i = 0; i < removeRows; i++) {
int[] horizontalSeam = sc.findHorizontalSeam();
sc.removeHorizontalSeam(horizontalSeam);
}
for (int i = 0; i < removeColumns; i++) {
int[] verticalSeam = sc.findVerticalSeam();
sc.removeVerticalSeam(verticalSeam);
}
Picture outputImg = sc.picture();
System.out.printf("new image size is %d columns by %d rows\n",
sc.width(), sc.height());
System.out.println("Resizing time: " + sw.elapsedTime() + " seconds.");
inputImg.show();
outputImg.show();
}
}
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