✅ Quicker Screenshot

public static System.Drawing.Bitmap DuplicateDesktopScreenShot()
{
    System.Drawing.Bitmap bitmap;
    using (DesktopDuplicator desktopDuplicator = new DesktopDuplicator(0, 0))
    {
        Thread.Sleep(10); // Seems to make image acquisition more consistent (non-black image)
        DesktopFrame frame = desktopDuplicator.GetLatestFrame(0, 0, 1920, 1080);
        if (frame != null)
        {
            bitmap = frame.DesktopImage;
            bitmap.Save("helloDesktop.png");
            return bitmap;
        }
        else
            return null;
    }
}

public static System.Drawing.Bitmap DuplicateDesktopScreenShot()
{
    System.Drawing.Bitmap bitmap;
    using (DesktopDuplicator desktopDuplicator = new DesktopDuplicator(0, 0))
    {
        Thread.Sleep(10); // Seems to make image acquisition more consistent (non-black image)
        DesktopFrame frame = desktopDuplicator.GetLatestFrame(0, 0, 1920, 1080);
        if (frame != null)
        {
            bitmap = frame.DesktopImage;
            bitmap.Save("helloDesktop.png");
            return bitmap;
        }
        else
            return null;
    }
}

public static System.Drawing.Bitmap DuplicateDesktopScreenShot()
{
    using (DesktopDuplicator desktopDuplicator = new DesktopDuplicator(0, 0))
    {
        DesktopFrame frame1 = desktopDuplicator.GetLatestFrame(0, 0, 1920, 1080);
        DesktopFrame frame2 = desktopDuplicator.GetLatestFrame(0, 0, 1920, 1080);
        if (frame1 != null)
            frame2.DesktopImage.Save("helloFrame1.png");
        if (frame2 != null)
        {
            System.Drawing.Bitmap bitmap = frame2.DesktopImage;
            bitmap.Save("helloFrame2.png");
            return bitmap;
        }
        else
            return null;
    }
}

public static System.Drawing.Bitmap DuplicateDesktopScreenShot()
{
    using (DesktopDuplicator desktopDuplicator = new DesktopDuplicator(0, 0))
    {
        DesktopFrame frame1 = desktopDuplicator.GetLatestFrame(0, 0, 1920, 1080);
        DesktopFrame frame2 = desktopDuplicator.GetLatestFrame(0, 0, 1920, 1080);
        if (frame1 != null)
            frame2.DesktopImage.Save("helloFrame1.png");
        if (frame2 != null)
        {
            System.Drawing.Bitmap bitmap = frame2.DesktopImage;
            bitmap.Save("helloFrame2.png");
            return bitmap;
        }
        else
            return null;
    }
}

public static System.Drawing.Bitmap DuplicateDesktopScreenShot()
{
    using (DesktopDuplicator desktopDuplicator = new DesktopDuplicator(0, 0))
    {
        DesktopFrame frame = desktopDuplicator.GetLatestFrame(0, 0, 1920, 1080); // Initialize, but ignore this first frame
        frame = desktopDuplicator.GetLatestFrame(0, 0, 1920, 1080); // Use the second frame going forward
        if (frame != null)
        {
            /// frame.DesktopImage.Save("helloFrame.png"); // debug
            return frame.DesktopImage;
        }
        else
            return null;
    }
}

public static System.Drawing.Bitmap DuplicateDesktopScreenShot()
{
    using (DesktopDuplicator desktopDuplicator = new DesktopDuplicator(0, 0))
    {
        DesktopFrame frame = desktopDuplicator.GetLatestFrame(0, 0, 1920, 1080); // Initialize, but ignore this first frame
        frame = desktopDuplicator.GetLatestFrame(0, 0, 1920, 1080); // Use the second frame going forward
        if (frame != null)
        {
            /// frame.DesktopImage.Save("helloFrame.png"); // debug
            return frame.DesktopImage;
        }
        else
            return null;
    }
}

private static Mat GetTargetMatFromScreen(int targetScreen, int targetAdapter = 0, Rectangle cropRegion = default)
{
    Mat mat = null; // Initialize mat
    using (Bitmap screenshot = GetDuplicationScreenshot(0, 0)) // Obtain screenshot of target display (via DesktopDuplication)
    {
        /// screenshot.Save("test.png"); // debug
        if (cropRegion != default) // Check if a cropRegion was provided
        {
            using (Bitmap croppedScreenshot = CropImage(screenshot, cropRegion)) // Crop screenshot based on cropRegion and store in croppedScreenshot
            {
                if (croppedScreenshot != null) // Check if croppedScreenshot is NOT null
                    mat = BitmapConverter.ToMat(croppedScreenshot); // Create Mat converted from croppedScreenshot
            }
        }
        else
        {
            mat = BitmapConverter.ToMat(screenshot); // Create Mat converted from screenshot Bitmap
            if (mat == null) // Check if mat is null
                Console.WriteLine("Could not create haystack Mat from screenshot. Image search canceled."); // Output info to log
        }
    }
    return mat; // Return mat
}

private static Mat GetTargetMatFromScreen(int targetScreen, int targetAdapter = 0, Rectangle cropRegion = default)
{
    Mat mat = null; // Initialize mat
    using (Bitmap screenshot = GetDuplicationScreenshot(0, 0)) // Obtain screenshot of target display (via DesktopDuplication)
    {
        /// screenshot.Save("test.png"); // debug
        if (cropRegion != default) // Check if a cropRegion was provided
        {
            using (Bitmap croppedScreenshot = CropImage(screenshot, cropRegion)) // Crop screenshot based on cropRegion and store in croppedScreenshot
            {
                if (croppedScreenshot != null) // Check if croppedScreenshot is NOT null
                    mat = BitmapConverter.ToMat(croppedScreenshot); // Create Mat converted from croppedScreenshot
            }
        }
        else
        {
            mat = BitmapConverter.ToMat(screenshot); // Create Mat converted from screenshot Bitmap
            if (mat == null) // Check if mat is null
                Console.WriteLine("Could not create haystack Mat from screenshot. Image search canceled."); // Output info to log
        }
    }
    return mat; // Return mat
}