public ActionResult SeamCarver()
{
byte[] byteImage = WebImage.GetImageFromRequest("postedFile").GetBytes();
Bitmap originalImage; //taking the byte[] and turn into a Image
using (var ms = new MemoryStream(byteImage))
{
originalImage = new Bitmap(ms);
}
int numberOfSeams = int.Parse(Request["numberOfSeams"]);
bool seamVisible = true;
if (Request["seamVisible"] == null)
{
seamVisible = false;
}
SeamCarver seamCarve = new SeamCarver(originalImage, seamVisible, numberOfSeams);
Image filteredImage = seamCarve.fil;
byte[] imageInBytes; //taking the Image and turn into byte[]
using (var stream = new MemoryStream())
{
filteredImage.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
imageInBytes = stream.ToArray();
}
return(View(imageInBytes));
}
static void Main(string[] args)
{
try
{
if (args.Length < 3)
{
throw new Exception("The number of arguments is less than required");
}
string[] image = args[0].Split('.');
string extension = image[image.Length - 1];
string imageName = "";
for (int i = 0; i < image.Length - 1; i++)
{
imageName += image[i];
}
string imageSource = $"../images/{imageName}.{extension}";
string carvedImageOutput = $"../images/{imageName}_Carved_Image.{extension}";
string verticalSeamsOutputImage = $"../images/{imageName}_Vertical_Seams.{extension}";
string horizontalSeamsOutputImage = $"../images/{imageName}_Horizontal_Seams.{extension}";
if (!File.Exists(imageSource))
{
throw new Exception("The input file does not exist");
}
int verticalDeletingCount = int.Parse(args[1]);
int horizontalDeletingCount = int.Parse(args[2]);
Bitmap bitmap = new Bitmap(imageSource);
int width = bitmap.Width;
int height = bitmap.Height;
if (verticalDeletingCount > width || horizontalDeletingCount > height)
{
throw new Exception("The input vertical or horizontal seam is out of range");
}
// initialize the values
Pixel[][] pixels = Utility.GetImagePixels(bitmap);
Energy energy = new Energy(pixels, bitmap.Width, bitmap.Height);
Pixel[][] verticallyCarvedPixels = pixels;
Pixel[][] horizontallyCarvedPixels = pixels;
SeamCarver seamCarver = new SeamCarver(pixels);
// start the timer
Stopwatch stopwatch = Stopwatch.StartNew();
if (verticalDeletingCount > 0)
{
// set vertical seams
for (int k = 0; k < verticalDeletingCount; k++)
{
verticallyCarvedPixels = energy.ComputeVerticalEnergy(k);
seamCarver.FindVerticalSeam(ref verticallyCarvedPixels);
}
// draw vertical seams and save it
Utility.DrawVerticalSeams(bitmap, pixels, bitmap.Width, bitmap.Height);
bitmap.Save(verticalSeamsOutputImage);
bitmap.Dispose();
// decrease the width of the image verticalDeletedCount times
width -= verticalDeletingCount;
}
if (horizontalDeletingCount > 0)
{
// initialize the values based on the vertically carved image
horizontallyCarvedPixels = verticallyCarvedPixels;
energy = new Energy(verticallyCarvedPixels, width, height);
seamCarver = new SeamCarver(verticallyCarvedPixels);
// set horizontal seams
for (int k = 0; k < horizontalDeletingCount; k++)
{
horizontallyCarvedPixels = energy.ComputeHorizontalEnergy(k);
seamCarver.FindHorizontalSeam(ref horizontallyCarvedPixels);
}
// draw horizontal seams and save it
bitmap = new Bitmap(width, height);
Utility.DrawHorizontalSeams(bitmap, verticallyCarvedPixels, width, height);
bitmap.Save(horizontalSeamsOutputImage);
bitmap.Dispose();
// decrease the height of the image horizontalDeletedCount times
height -= horizontalDeletingCount;
}
// save the final image
Bitmap newImage = new Bitmap(width, height);
Utility.SetCarvedImage(newImage, horizontallyCarvedPixels);
newImage.Save(carvedImageOutput);
// stop the timer
stopwatch.Stop();
// print the total time to carve the image
Console.WriteLine("Total time: " + stopwatch.ElapsedMilliseconds / 1000);
Console.WriteLine("-------------------");
}
catch (Exception exception)
{
Console.WriteLine(exception.Message);
}
Console.ReadKey();
}
