private Bitmap CreateMozaic(int tiles, string imagesDBPath)
{
int count = 0;
int pixels = Img.Width / tiles;
int cols = tiles;
int rows = Img.Height / pixels;
int mozaicWidth = cols * Db.ImagesSize;
int mozaicHeight = rows * Db.ImagesSize;
byte[,,] mozaic = new byte[mozaicWidth, mozaicHeight, 3];
int numOfThreads = Environment.ProcessorCount - 2;
numOfThreads = numOfThreads < 2 ? 2 : numOfThreads;
var options = new ParallelOptions()
{
MaxDegreeOfParallelism = numOfThreads
};
Parallel.For(0, rows, options, j =>
{
var rng = new Random();
for (int i = 0; i < cols; i++)
{
Bitmap fragment;
lock (_lockResources)
{
count++;
double dprogress = (count / (double)(cols * rows)) * 100.0;
ProgressChanged?.Invoke(this, new ProgressChangedEventHandler((int)dprogress));
fragment = Img.Clone(new Rectangle(i * pixels, j * pixels, pixels, pixels), PixelFormat.Format32bppRgb);
}
ImageItem bestImage = FindBest(fragment, rng);
var bestImagePath = Path.Combine(imagesDBPath, bestImage.Filename);
Bitmap bestImageBMP = (Bitmap)Image.FromFile(bestImagePath);
bestImageBMP = Processing.ChangePixelFormat(bestImageBMP, PixelFormat.Format32bppRgb);
//bestImageBMP = AdjustColor(bestImageBMP, fragment, bestImage);
byte[,,] bestImageArr = Processing.BitmapToRGBArray(bestImageBMP);
bestImageBMP.Dispose();
fragment.Dispose();
lock (_lockResources2)
{
Processing.PasteArray(ref mozaic, bestImageArr, i * Db.ImagesSize, j * Db.ImagesSize);
}
}
});
return(Processing.RGBArrayToBitmap(mozaic));
}