public void Test()
{
Console.WriteLine("--- BinaryPayload ---");
var sw = new System.Diagnostics.Stopwatch();
// 画像の平均輝度を取得(C#)
sw.Restart();
double csy = ImagePath.GetAverageY();
Console.WriteLine($"C# AverageY={csy:f2} {sw.Elapsed} sec");
// 画像の平均輝度を取得(PInvoke)
sw.Restart();
double cppy;
using (var bitmap = new Bitmap(ImagePath))
{
var rect = new Rectangle(0, 0, bitmap.Width, bitmap.Height);
var bitmapData = bitmap.LockBits(rect, ImageLockMode.ReadOnly, bitmap.PixelFormat);
try
{
var payload = new ImagePayload(bitmap, bitmapData);
cppy = GetImageAllY(payload);
}
finally { bitmap.UnlockBits(bitmapData); }
}
Console.WriteLine($"C++ AverageY={cppy:f2} {sw.Elapsed} sec");
}
private extern static double GetImageAllY(ImagePayload imagePayload);