/// <summary>
/// Converts this instance to a <see cref="Bitmap"/> using <see cref="ImageFormat.Bmp"/>.
/// </summary>
/// <returns>A <see cref="Bitmap"/> that has the format <see cref="ImageFormat.Bmp"/>.</returns>
public Bitmap ToBitmap()
{
if (ColorSpace == ColorSpace.CMYK)
{
ColorSpace = ColorSpace.sRGB;
}
string mapping = "BGR";
PixelFormat format = PixelFormat.Format24bppRgb;
if (HasAlpha)
{
mapping = "BGRA";
format = PixelFormat.Format32bppArgb;
}
using (PixelCollection pixels = GetPixels())
{
Bitmap bitmap = new Bitmap(Width, Height, format);
BitmapData data = bitmap.LockBits(new Rectangle(0, 0, Width, Height), ImageLockMode.ReadWrite, format);
IntPtr destination = data.Scan0;
for (int y = 0; y < Height; y++)
{
byte[] bytes = pixels.ToByteArray(0, y, Width, 1, mapping);
Marshal.Copy(bytes, 0, destination, bytes.Length);
destination = new IntPtr(destination.ToInt64() + data.Stride);
}
bitmap.UnlockBits(data);
return(bitmap);
}
}
public PixelCollectionEnumerator(PixelCollection collection, int width, int height)
{
_collection = collection;
_width = width;
_height = height;
Reset();
}
/// <summary>
/// Converts this instance to a <see cref="BitmapSource"/>.
/// </summary>
/// <returns>A <see cref="BitmapSource"/>.</returns>
public BitmapSource ToBitmapSource()
{
string mapping = "RGB";
MediaPixelFormat format = MediaPixelFormats.Rgb24;
if (HasAlpha)
{
mapping = "BGRA";
format = MediaPixelFormats.Bgra32;
}
if (ColorSpace == ColorSpace.CMYK)
{
mapping = "CMYK";
format = MediaPixelFormats.Cmyk32;
}
int step = format.BitsPerPixel / 8;
int stride = Width * step;
using (PixelCollection pixels = GetPixels())
{
byte[] bytes = pixels.ToByteArray(mapping);
return(BitmapSource.Create(Width, Height, 96, 96, format, null, bytes, stride));
}
}
private static void Test_Set(PixelCollection pixels, QuantumType[] value)
{
ExceptionAssert.Throws<ArgumentException>(delegate ()
{
pixels.Set(value);
});
}
internal static Pixel Create(PixelCollection collection, int x, int y, QuantumType[] value)
{
Pixel pixel = new Pixel(collection);
pixel.Initialize(x, y, value);
return(pixel);
}
internal static IntPtr GetInstance(PixelCollection instance)
{
if (instance == null)
{
return(IntPtr.Zero);
}
return(instance._NativeInstance.Instance);
}
private static void Test_PixelColor(PixelCollection pixels, int x, int y, MagickColor color)
{
var values = pixels.GetValue(x, y);
Assert.AreEqual(3, values.Length);
MagickColor magickColor = new MagickColor(values[0], values[1], values[2]);
ColorAssert.AreEqual(color, magickColor);
}
private Pixel(PixelCollection collection, int x, int y, QuantumType[] value)
{
_collection = collection;
X = x;
Y = y;
_value = value;
}
private static void Test_PixelColor(PixelCollection pixels, MagickColor color)
{
Test_PixelColor(pixels, 0, 0, color);
}
private Pixel(PixelCollection collection)
{
_collection = collection;
}
internal static IntPtr GetInstance(PixelCollection instance)
{
if (instance == null)
return IntPtr.Zero;
return instance._NativeInstance.Instance;
}
static void Main(string[] args)
{
if (args.Length != 9) {
Console.WriteLine("ImageMerge: Version 1.0");
displaySyntax();
} else {
for (int i = 0; i < 50; i++)
Placed[i] = false;
canvasSizeX = Convert.ToInt32(args[0]);
canvasSizeY = Convert.ToInt32(args[1]);
int canvasStartX = Convert.ToInt32(args[2]);
int canvasStartY = Convert.ToInt32(args[3]);
string bgColor = "xc:" + args[4]; // canvas color name or hex color
accuracy = Convert.ToInt32(args[5]);
shortCut = Convert.ToInt32(args[6]);
nearness = Convert.ToInt32(args[7]);
double overlap = Convert.ToDouble(args[8]);
Console.WriteLine("\nCanvas Size: " + canvasSizeX.ToString() + "x" + canvasSizeY.ToString());
Console.WriteLine("Canvas Start: " + canvasStartX.ToString() + "x" + canvasStartY.ToString());
Console.WriteLine("Background color: " + args[4]);
Console.WriteLine("Accuracy: " + accuracy.ToString());
Console.WriteLine("Nearness: " + nearness.ToString());
Console.WriteLine("Overlap: " + overlap.ToString() + "\n");
if (overlap != 0) // 0 means use default 20 which is 20% overlap for nearness=1
overlapPercent = overlap;
overlapPercent = overlapPercent / 100 / accuracy / accuracy;
if (!((shortCut == 0) || (shortCut == 1))) {
Console.WriteLine("shortCut value is " + shortCut.ToString() + ". It must be 0 or 1. Setting to 0.\n\n");
displaySyntax();
Console.WriteLine("\n\n");
shortCut = 0;
}
if (nearness < 0) {
Console.WriteLine("nearness value is " + nearness.ToString() + ". It must be greater than 0. Setting to 0.\n\n");
displaySyntax();
Console.WriteLine("\n\n");
nearness = 0;
}
if ((nearness > 0) && (shortCut != 1)) {
Console.WriteLine("If nearness equal 1 then shortcut must equal 1. Setting shortcut = 1.\n\n");
displaySyntax();
Console.WriteLine("\n\n");
shortCut = 1;
}
UsedPixel = new bool[canvasSizeX, canvasSizeY]; // remembers which pixels are used in the canvas
canvasR = new ushort[canvasSizeX, canvasSizeY];
canvasG = new ushort[canvasSizeX, canvasSizeY];
canvasB = new ushort[canvasSizeX, canvasSizeY];
for (int y = 0; y < canvasSizeY; y++)
for (int x = 0; x < canvasSizeX; x++) {
UsedPixel[x, y] = false;
}
using (MagickImage canvas = new MagickImage(bgColor, canvasSizeX, canvasSizeY)) {
string[] files = Directory.GetFiles(".", "*.png", SearchOption.TopDirectoryOnly);
int maxWidth = 0, maxHeight = 0;
int len = files.Length;
if (len < 2) {
Console.WriteLine("Need at least 2 images to run.");
return;
}
for (int i = 0; i < len; i++) {
image[i] = new MagickImage(files[i]);
imagePC[i] = image[i].GetReadOnlyPixels();
if (image[i].Width > maxWidth)
maxWidth = image[i].Width;
if (image[i].Height > maxHeight)
maxHeight = image[i].Height;
}
// record RGB pixel values for each image to reduce calls to GetPixel() to improve performance
imageR = new ushort[len, maxWidth, maxHeight];
imageG = new ushort[len, maxWidth, maxHeight];
imageB = new ushort[len, maxWidth, maxHeight];
for (int i = 1; i < len; i++) {
for (int y = 0; y < image[i].Height; y++) {
for (int x = 0; x < image[i].Width; x++) {
Pixel p = imagePC[i].GetPixel(x, y); // image pixel
imageR[i, x, y] = p.GetChannel(0);
imageG[i, x, y] = p.GetChannel(1);
imageB[i, x, y] = p.GetChannel(2);
}
}
}
canvas.Composite(image[0], new MagickGeometry(canvasStartX, canvasStartY, image[0].Width, image[0].Height), CompositeOperator.Over);
canvas.Write(@"output\output-1.png");
canvasPC = canvas.GetReadOnlyPixels();
getCanvasRGB();
Placed[0] = true; // first image has been placed on canvas
// top/left of active-canvas
activeCanvasX1 = lastImageX1 = canvasStartX;
activeCanvasY1 = lastImageY1 = canvasStartY;
// bottom/right of active-canvas
activeCanvasX2 = lastImageX2 = canvasStartX + image[0].Width - 1;
activeCanvasY2 = lastImageY2 = canvasStartY + image[0].Height - 1;
setUsedPixels(activeCanvasX1, activeCanvasY1, activeCanvasX2, activeCanvasY2);
int outputImageNum = 2;
bool imagePlaced = false;
canvasX = canvasSizeX - 1; // right column of pixels
canvasY = canvasSizeY - 1; // bottom row of pixels
Console.WriteLine(files[0] + " -> output-1: " + canvasStartX.ToString() + "x" + canvasStartY.ToString());
do {
imagePlaced = false;
for (int i = 1; i < len; i++) {
if (!Placed[i]) { // if image has not been placed on canvas
Console.Write(files[i]);
findCorrectOverlap(i);
if ((nearness == 0) && (overlapMax == 0))
Console.WriteLine(": NO MERGE");
else {
Console.WriteLine(" -> output-" + outputImageNum.ToString() + ": " + maxX1.ToString() + "x" + maxY1.ToString());
int w = image[i].Width;
int h = image[i].Height;
canvas.Composite(image[i], new MagickGeometry(maxX1, maxY1, w, h), CompositeOperator.Over);
canvas.Write(@"output\output-" + (outputImageNum++).ToString() + ".png");
canvasPC = canvas.GetReadOnlyPixels(); // update canvas pixels
getCanvasRGB();
// record canvas background for comparison later
canvasBackR = canvasR[0, 0];
canvasBackG = canvasG[0, 0];
canvasBackB = canvasB[0, 0];
Placed[i] = true; // image has bee placed on canvas
maxX2 = maxX1 + w - 1;
maxY2 = maxY1 + h - 1;
// prevent bottom right from going outside of canvas
if (maxX2 > canvasX)
maxX2 = canvasX;
if (maxY2 > canvasY)
maxY2 = canvasY;
setUsedPixels(maxX1, maxY1, maxX2, maxY2); // mark pixels used
// update Active Canvas
if (maxX1 < activeCanvasX1)
activeCanvasX1 = maxX1;
if (maxY1 < activeCanvasY1)
activeCanvasY1 = maxY1;
if (maxX2 > activeCanvasX2)
activeCanvasX2 = maxX2;
if (maxY2 > activeCanvasY2)
activeCanvasY2 = maxY2;
imagePlaced = true;
if (shortCut == 1) {
lastImageX1 = maxX1;
lastImageY1 = maxY1;
lastImageX2 = maxX2;
lastImageY2 = maxY2;
}
}
}
}
} while (imagePlaced); // repeat until no images are placed
}
}
}
