C#与vb.net源码代码互转网站

1，http://converter.telerik.com

''' <summary>
''' 提取像素法简单的方法上面的是好的不过分析图片时用很好用
''' </summary>
''' <param name="srcBitmap"></param>
''' <returns></returns>
Public Shared Function RGB2Gray1(ByVal srcBitmap As Bitmap) As Bitmap
Dim srcColor As Color
Dim wide As Integer = srcBitmap.Width
Dim height As Integer = srcBitmap.Height

For y As Integer = 0 To height - 1

For x As Integer = 0 To wide - 1
'获取像素的ＲＧＢ颜色值

srcColor = srcBitmap.GetPixel(x, y)
Dim temp As Byte = CByte((srcColor.R * 0.299 + srcColor.G * 0.587 + srcColor.B * 0.114))

' //设置像素的ＲＧＢ颜色值
srcBitmap.SetPixel(x, y, Color.FromArgb(temp, temp, temp))
Next
Next

Return srcBitmap
End Function

转换后

/// <summary>

/// ''' 提取像素法简单的方法上面的是好的不过分析图片时用很好用

/// ''' </summary>

/// ''' <param name="srcBitmap"></param>

/// ''' <returns></returns>
public static Bitmap RGB2Gray1(Bitmap srcBitmap)
{
Color srcColor;
int wide = srcBitmap.Width;
int height = srcBitmap.Height;

for (int y = 0; y <= height - 1; y++)
{
for (int x = 0; x <= wide - 1; x++)
{
// 获取像素的ＲＧＢ颜色值

srcColor = srcBitmap.GetPixel(x, y);
byte temp = System.Convert.ToByte((srcColor.R * 0.299 + srcColor.G * 0.587 + srcColor.B * 0.114));

// //设置像素的ＲＧＢ颜色值
srcBitmap.SetPixel(x, y, Color.FromArgb(temp, temp, temp));
}
}

return srcBitmap;
}

2，http://www.carlosag.net/Tools/CodeTranslator/

这个是强制转换代码

For y As Integer = 0 To height - 1

For x As Integer = 0 To wide - 1
'获取像素的ＲＧＢ颜色值

srcColor = srcBitmap.GetPixel(x, y)
Dim temp As Byte = CByte((srcColor.R * 0.299 + srcColor.G * 0.587 + srcColor.B * 0.114))

' //设置像素的ＲＧＢ颜色值
srcBitmap.SetPixel(x, y, Color.FromArgb(temp, temp, temp))
Next
Next

Return srcBitmap
End Function

Unknown(

;
srcBitmap.Width;
srcBitmap.Height;
(0
1))
(0
1))

;
0.299
0.587
0.114))));
;
}

srcBitmap;
}

来源：博客园

作者：fy53999

链接：https://www.cnblogs.com/rj888/archive/2019/10/16/11683399.html

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