3---------------------------------------------------------------------------------------
用asp组件Persits.Jpeg给图片加水印，生成缩略图
<%
FileName="1.jpg"
Set Jpeg = Server.CreateObject("Persits.Jpeg")
' 获取源图片路径
Path = Server.MapPath(FileName)
' 打开源图片
'response.write(Path)
Jpeg.Open Path
' 设定生成缩略图细节 这里有很多种设定方法 下面的方法是先判断宽高比 然后按比例缩放
If Jpeg.OriginalWidth / Jpeg.OriginalHeight > 1 then
Jpeg.Width = 98
Jpeg.Height = int((98/Jpeg.OriginalWidth)*Jpeg.OriginalHeight)
elseif Jpeg.OriginalWidth / Jpeg.OriginalHeight < 1 then
Jpeg.Width = 98
Jpeg.Height= int((98/Jpeg.OriginalWidth)*Jpeg.Height)
end if
' 设定锐化效果
Jpeg.Sharpen 1, 130
' 向指定路径生成缩略图
Response.Write Server.MapPath(".")
Jpeg.Save Server.MapPath(".")&"small"&filename
'response.write filename1
'response.write Server.MapPath("uploadpic/small")&""&filename1
' 注意这两个Session
'Session("PPP0")=GP_curPath&FileName
'Session("PPP1")=GP_curPath&"small"&FileName
Set Jpeg = Nothing
'自动产生缩掠图结束
'大图片打水印开始
' 建立实例
Set Jpeg = Server.CreateObject("Persits.Jpeg")
' 打开目标图片
Path = Server.MapPath(FileName)
' 打开源图片
Jpeg.Open Path
' 添加文字水印
Jpeg.Canvas.Font.Color = &HFF0000' 红色
Jpeg.Canvas.Font.Family = "宋体"
Jpeg.Canvas.Font.Bold = True
Jpeg.Canvas.Print 10, 10, "宏蓝科技"
' 保存文件
Jpeg.Save Server.MapPath(".")&"smallw_"&filename
' 注销对象
Set Jpeg = Nothing
'大图片打水印结束
%>
4---------------------------------------------------------------------------------------
利用ASPJPEG组建加水印ASP实现代码
<%
Class qswhImg
dim aso
Private Sub Class_Initialize
set aso=CreateObject("Adodb.Stream")
aso.Mode=3
aso.Type=1
aso.Open
End Sub
Private Sub Class_Terminate
set aso=nothing
End Sub
Private Function Bin2Str(Bin)
Dim I, Str
For I=1 to LenB(Bin)
clow=MidB(Bin,I,1)
if ASCB(clow)<128 then
Str = Str & Chr(ASCB(clow))
else
I=I+1
if I <= LenB(Bin) then Str = Str & Chr(ASCW(MidB(Bin,I,1)&clow))
end if
Next
Bin2Str = Str
End Function
Private Function Num2Str(num,base,lens)
'qiushuiwuhen (2002-8-12)
dim ret
ret = ""
while(num>=base)
ret = (num mod base) & ret
num = (num - num mod base)/base
wend
Num2Str = right(string(lens,"0") & num & ret,lens)
End Function
Private Function Str2Num(str,base)
'qiushuiwuhen (2002-8-12)
dim ret
ret = 0
for i=1 to len(str)
ret = ret *base + cint(mid(str,i,1))
next
Str2Num=ret
End Function
Private Function BinVal(bin)
'qiushuiwuhen (2002-8-12)
dim ret
ret = 0
for i = lenb(bin) to 1 step -1
ret = ret *256 + ascb(midb(bin,i,1))
next
BinVal=ret
End Function
Private Function BinVal2(bin)
'qiushuiwuhen (2002-8-12)
dim ret
ret = 0
for i = 1 to lenb(bin)
ret = ret *256 + ascb(midb(bin,i,1))
next
BinVal2=ret
End Function
Function getImageSize(filespec)
'qiushuiwuhen (2002-9-3)
dim ret(3)
aso.LoadFromFile(filespec)
bFlag=aso.read(3)
select case hex(binVal(bFlag))
case "4E5089":
aso.read(15)
ret(0)="PNG"
ret(1)=BinVal2(aso.read(2))
aso.read(2)
ret(2)=BinVal2(aso.read(2))
case "464947":
aso.read(3)
ret(0)="GIF"
ret(1)=BinVal(aso.read(2))
ret(2)=BinVal(aso.read(2))
case "535746":
aso.read(5)
binData=aso.Read(1)
sConv=Num2Str(ascb(binData),2 ,8)
nBits=Str2Num(left(sConv,5),2)
sConv=mid(sConv,6)
while(len(sConv)<nBits*4)
binData=aso.Read(1)
sConv=sConv&Num2Str(ascb(binData),2 ,8)
wend
ret(0)="SWF"
ret(1)=int(abs(Str2Num(mid(sConv,1*nBits+1,nBits),2)-Str2Num(mid(sConv,0*nBits+1,nBits),2))/20)
ret(2)=int(abs(Str2Num(mid(sConv,3*nBits+1,nBits),2)-Str2Num(mid(sConv,2*nBits+1,nBits),2))/20)
case "FFD8FF":
do
do: p1=binVal(aso.Read(1)): loop while p1=255 and not aso.EOS
if p1>191 and p1<196 then exit do else aso.read(binval2(aso.Read(2))-2)
do:p1=binVal(aso.Read(1)):loop while p1<255 and not aso.EOS
loop while true
aso.Read(3)
ret(0)="JPG"
ret(2)=binval2(aso.Read(2))
ret(1)=binval2(aso.Read(2))
case else:
if left(Bin2Str(bFlag),2)="BM" then
aso.Read(15)
ret(0)="BMP"
ret(1)=binval(aso.Read(4))
ret(2)=binval(aso.Read(4))
else
ret(0)=""
end if
end select
ret(3)="width=""" & ret(1) &""" height=""" & ret(2) &""""
getimagesize=ret
End Function
End Class
SavefullPath="326151745wldn.jpg" '图片路径赋值 或 图片路径变量赋值
'取得图片的宽度
Set qswh = new qswhImg
arr = qswh.getImageSize(Server.Mappath(SavefullPath))
Set qswh = Nothing
str_ImgWidth=arr(1)
str_ImgHeight=arr(2)
If Int(str_ImgWidth) > 600 Then
str_ImgWidth = 600
Else
str_ImgWidth = str_ImgWidth
End If
'加水印
If Int(str_ImgWidth) > 300 And Int(str_ImgHeight) > 100 Then
LocalFile=Server.MapPath(SavefullPath)
TargetFile=Server.MapPath(SavefullPath)
Dim Jpeg
Set Jpeg = Server.CreateObject("Persits.Jpeg")
If -2147221005=Err then
Response.Write("<script language='javascript'>alert('没有这个组件，请安装!');history.back();</script>") '检查是否安装AspJpeg组件
Response.End()
End If
Jpeg.Open (LocalFile) '打开图片
If err.number then
Response.Write("<script language='javascript'>alert('打开图片失败,请检查路径！');history.back();</script>")
Response.End()
End if
Dim aa
aa=Jpeg.Binary '将原始数据赋给aa
'=========加文字水印=================
Jpeg.Canvas.Font.Color = &Hfffffff '水印文字颜色
Jpeg.Canvas.Font.Family = Arial '字体
Jpeg.Canvas.Font.Bold = True '是否加粗
Jpeg.Canvas.Font.Size = 20 '字体大小
Jpeg.Canvas.Font.ShadowColor = &H000000 '阴影色彩
Jpeg.Canvas.Font.ShadowYOffset = 1
Jpeg.Canvas.Font.ShadowXOffset = 1
Jpeg.Canvas.Brush.Solid = True
Jpeg.Canvas.Font.Quality = 10 ' '输出质量
Jpeg.Canvas.PrintText Jpeg.OriginalWidth/2-40,Jpeg.OriginalHeight/2-10,"网站建设" '水印位置及文字
bb=Jpeg.Binary '将文字水印处理后的值赋给bb，这时，文字水印没有不透明度
'============调整文字透明度================
Set MyJpeg = Server.CreateObject("Persits.Jpeg")
MyJpeg.OpenBinary aa
Set Logo = Server.CreateObject("Persits.Jpeg")
Logo.OpenBinary bb
MyJpeg.DrawImage 0,0, Logo, 0.5 '0.3是透明度
cc=MyJpeg.Binary '将最终结果赋值给cc,这时也可以生成目标图片了
Response.BinaryWrite cc '将二进输出给浏览器
MyJpeg.Save (TargetFile)
set aa = nothing
set bb = nothing
set cc = nothing
Jpeg.Close
MyJpeg.Close
Logo.Close
End If
'加水印
%>
