【C#】画像の輝度値の取得設定速度の比較

set_get_bright_speed_1.cs

/// <summary>
/// GetPixel、SetPixelで輝度値の取得設定
/// </summary>
/// <param name="bmp"></param>
private void NegativeImage1(Bitmap bmp)
{
    var width = bmp.Width;
    var height = bmp.Height;

    Color col;

    int r, g, b;

    for (int y = 0; y < height; y++)
    {
        for (int x = 0; x < width; x++)
        {
            // 輝度値の取得
            col = bmp.GetPixel(x, y);
            r = col.R;
            g = col.G;
            b = col.B;

            // 色を反転
            col = Color.FromArgb(255 - r, 255 - g, 255 - b);

            // 輝度値の設定
            bmp.SetPixel(x, y, col);
        }
    }
}

【C#】画像の輝度値の取得設定速度の比較
https://imagingsolution.net/program/set_get_bright_speed/