标题: vb的代码 把灰度图像转伪彩 [打印本页] 作者: 灵芝 时间: 2009-5-6 07:21 标题: vb的代码 把灰度图像转伪彩 请教，vb的代码，把灰度图像转伪彩，在ACCESS中应如何改
谢谢！！！
Private Declare Function GetPixel Lib "gdi32" _
(ByVal hdc As Long, ByVal x As Long, ByVal Y As Long) As Long
Private Declare Function SetPixelV Lib "gdi32" _
(ByVal hdc As Long, ByVal x As Long, _
ByVal Y As Long, ByVal crColor As Long) As Long
Private tmpPic As Picture
Private Sub Command1_click()
Dim width5 As Long, heigh5 As Long, rgb5 As Long
Dim hdc5 As Long, i As Long, j As Long
Dim bBlue As Long, bRed As Long, bGreen As Long
Dim Y As Long
width5 = Picture1.ScaleWidth
heigh5 = Picture1.ScaleHeight
hdc5 = Picture1.hdc
For i = 1 To width5
For j = 1 To heigh5
rgb5 = GetPixel(hdc5, i, j)
bBlue = Blue(rgb5) '获得兰色值
bRed = Red(rgb5) '获得红色值
bGreen = Green(rgb5) '获得绿色值
'将三原色转换为灰度
Y = (9798 * bRed + 19235 * bGreen + 3735 * bBlue) \ 32768
'将灰度转换为RGB
rgb5 = RGB(Y, Y, Y)
SetPixelV hdc5, i, j, rgb5
Next j
Next i
Set Picture1.Picture = Picture1.Image
End Sub
Private Function Red(ByVal mlColor As Long) As Long
'从RGB值中获得红色值
Red = mlColor And &HFF
End Function
Private Function Green(ByVal mlColor As Long) As Long
'从RGB值中获得绿色值
Green = (mlColor \ &H100) And &HFF
End Function
Private Function Blue(ByVal mlColor As Long) As Long
''从RGB值中获得蓝色值
Blue = (mlColor \ &H10000) And &HFF
End Function作者: luhao 时间: 2009-5-6 12:33
有没一个例作者: 灵芝 时间: 2009-5-7 05:36
这是别人做的，我需要在ACCESS中实现作者: 灵芝 时间: 2009-5-7 06:41
还有一个代码，只是没弄明白，请帮忙作者: luhao 时间: 2009-5-16 20:40
