注册组件的方法:
命令提示符下输入"regsvr32 [Dll路径]" 就可以了．
图片添加水印无非就是获得图片大小,然后把水印写上去..ASP代码只是起个控制组件的作用.用代码来说明一切吧.
一:获得图片大小(这里是用象素值表示的.学PhotoShop的朋友都应该明白)
代码如下:
<BR /><% <BR />set obj=server.CreateObject("wsImage.Resize") ''调用组件 <BR />obj.LoadSoucePic server.mappath("25.jpg") ''打开图片,图片名字是25.jpg <BR />obj.GetSourceInfo iWidth,iHeight <BR />response.write "图片宽度:" & iWidth & "<br>" ''获得图片宽度 <BR />response.write "图片高度:" & iHeight & "<br>" ''获得图片高度 <BR />strError=obj.errorinfo <BR />if strError<>"" then <BR />response.write obj.errorinfo <BR />end if <BR />obj.free <BR />set obj=nothing <BR />%> <BR /> <BR />''----------------------------------------------------------------'' <BR /><STRONG>二:添加文字水印</STRONG> <BR /><span><U></U></span> 代码如下:<BR /><% <BR />set obj=server.CreateObject("wsImage.Resize") <BR />obj.LoadSoucePic server.mappath("25.jpg") ''装载图片 <BR />obj.Quality=75 <BR />obj.TxtMarkFont = "华文彩云" ''设置水印文字字体 <BR />obj.TxtMarkBond = false ''设置水印文字的粗细 <BR />obj.MarkRotate = 0 ''水印文字的旋转角度 <BR />obj.TxtMarkHeight = 25 ''水印文字的高度 <BR />obj.AddTxtMark server.mappath("txtMark.jpg"), "带你离境", &H00FF00&, 10, 70 <BR />strError=obj.errorinfo ''生成图片名字,文字颜色即水印在图片的位置 <BR />if strError<>"" then <BR />response.write obj.errorinfo <BR />end if <BR />obj.free <BR />set obj=nothing <BR />%> <BR /> <BR />''----------------------------------------------------------------'' <BR /><STRONG>三:添加图片水印</STRONG> <BR /><span><U></U></span> 代码如下:<BR /><% <BR />set obj=server.CreateObject("wsImage.Resize") <BR />obj.LoadSoucePic server.mappath("25.jpg") ''装载图片 <BR />obj.LoadImgMarkPic server.mappath("blend.bmp") ''装载水印图片 <BR />obj.Quality=75 <BR />obj.AddImgMark server.mappath("imgMark.jpg"), 315, 220,&hFFFFFF, 70 <BR />strError=obj.errorinfo ''生成图片名字,文字颜色即水印在图片的位置 <BR />if strError<>"" then <BR />response.write obj.errorinfo <BR />end if <BR />obj.free <BR />set obj=nothing <BR />%> <BR /> <BR />''----------------------------------------------------------------'' <BR />其实给图片添加水印就这么简单.然后我在说下WsImage.dll组件的另外两个主要用法.包括: <BR />剪裁图片,生成图片的缩略图. <BR />还是以我得习惯,用代码加注释说明: <BR />剪裁图片: <BR /><span><U></U></span> 代码如下:<BR /><% <BR />set obj=server.CreateObject("wsImage.Resize") <BR />obj.LoadSoucePic server.mappath("25.jpg") <BR />obj.Quality=75 <BR />obj.cropImage server.mappath("25_crop.jpg"),100,10,200,200 ''定义裁减大小和生成图片名字 <BR />strError=obj.errorinfo <BR />if strError<>"" then <BR />response.write obj.errorinfo <BR />end if <BR />obj.free <BR />set obj=nothing <BR />%> <BR /> <BR />详细注释:裁减图片用到了WsImage的CropImage方法.其中定义生成图片时候,100,10是左上角的裁减点,即离图片左边是100象素,顶端10象素.后两个200代表的是裁减的宽带和高和高度. <BR />''----------------------------------------------------------------'' <BR /><STRONG>生成图片缩略图</STRONG>: <BR /><span><U></U></span> 代码如下:<BR /><% <BR />set obj=server.CreateObject("wsImage.Resize") <BR />obj.LoadSoucePic server.mappath("25.jpg") ''加载图片 <BR />obj.Quality=75 <BR />obj.OutputSpic server.mappath("25_s.jpg"),0.5,0.5,3 ''定义缩略图的名字即大小 <BR />strError=obj.errorinfo <BR />if strError<>"" then <BR />response.write obj.errorinfo <BR />end if <BR />obj.free <BR />set obj=nothing <BR />%> <BR /> <BR />详细说明: <BR /><STRONG>产生缩略图共有四种导出方式</STRONG>： <BR />(1) obj.OutputSpic server.mappath("25_s.jpg"),200,150,0 <BR />200为输出宽，150为输出高，这种输出形式为强制输出宽高，可能引起图片变形。 <BR />(2) obj.OutputSpic server.mappath("25_s.jpg"),200,0,1 <BR />以200为输出宽，输出高将随比列缩放。 (3) obj.OutputSpic server.mappath("25_s.jpg"),0,200,2
以200为输出高，输出宽将随比列缩放。
(4) obj.OutputSpic server.mappath("25_s.jpg"),0.5,0.5,3
第一个0.5表示生成的缩略图是原图宽的一半，即表示宽缩小比例。
第二个0.5表示生成的缩略图是原图高的一半，即表示高缩小比例。
宽高的缩小比例一致意味着将对原图进行比例缩小。宽高的缩放比例如果大于1，则对原图进行放大。
2---------------------------------------------------------------------------------------
代码如下:
<BR /><% <BR />Dim stream1,stream2,istart,iend,filename <BR />istart=1 <BR />vbEnter=Chr(13)&Chr(10) <BR />function getvalue(fstr,foro,paths)'fstr为接收的名称，foro布尔false为文件上传,true 为普通字段，path为上传文件存放路径 <BR />if foro then <BR />getvalue="" <BR />istart=instring(istart,fstr) <BR />istart=istart+len(fstr)+5 <BR />iend=instring(istart,vbenter+"-----------------------------") <BR />if istart>5+len(fstr) then <BR />getvalue=substring(istart,iend-istart) <BR />else <BR />getvalue="" <BR />end if <BR />else <BR />istart=instring(istart,fstr) <BR />istart=istart+len(fstr)+13 <BR />iend=instring(istart,vbenter)-1 <BR />filename=substring(istart,iend-istart) <BR />filename9=right(getfilename(filename),4)'取原文件后缀 <BR />filename8=year(now())&month(now())&day(now())&hour(now())&minute(now())&second(now())&int(9*10^3*rnd)+10^3'取随机文件名, <BR />'如果你要加长文件名,请修改(100*rnd)中100的值 <BR />filename=replace(getfilename(filename),getfilename(filename),filename8) '替换原文件名,活用replace函数 <BR />filename=filename&filename9 '加上文件后缀,规则为生成的随机文件名加上原文件后缀 <BR />istart=instring(iend,vbenter+vbenter)+3 <BR />iend=instring(istart,vbenter+"-----------------------------") <BR />filestart=istart <BR />filesize=iend-istart-1 <BR />objstream.position=filestart <BR />Set sf = Server.CreateObject("ADODB.Stream") <BR />sf.Mode=3 <BR />sf.Type=1 <BR />sf.Open <BR />objstream.copyto sf,FileSize <BR />if filename<>"" then <BR />Set rf = Server.CreateObject("Scripting.FileSystemObject") <BR />i=0 <BR />fn=filename <BR />while rf.FileExists(server.mappath(paths+fn)) <BR />fn=cstr(i)+filename <BR />i=i+1 <BR />wend <BR />filename=fn <BR />sf.SaveToFile server.mappath(paths+filename),2 <BR />''''''''''''''''''''''''''''''''''''''''''''''''''' <BR />Dim Jpeg <BR />Set Jpeg = Server.CreateObject("Persits.Jpeg") <BR />If -2147221005=Err then <BR />Response.write "没有这个组件，请安装!" '检查是否安装AspJpeg组件 <BR />Response.End() <BR />End If <BR />Jpeg.Open (server.mappath(paths+filename)) '打开图片 <BR />If err.number then <BR />Response.write"打开图片失败,请检查路径！" <BR />Response.End() <BR />End if <BR />Dim aa <BR />aa=Jpeg.Binary '将原始数据赋给aa <BR />'=========加文字水印================= <BR />Jpeg.Canvas.Font.Color = &Hff0000 '水印文字颜色 <BR />Jpeg.Canvas.Font.Family = Arial'字体 <BR />Jpeg.Canvas.Font.Bold = True '是否加粗 <BR />Jpeg.Canvas.Font.Size = 30'字体大小 <BR />Jpeg.Canvas.Font.ShadowColor = &H000000 '阴影色彩 <BR />Jpeg.Canvas.Font.ShadowYOffset = 1 <BR />Jpeg.Canvas.Font.ShadowXOffset = 1 <BR />Jpeg.Canvas.Brush.Solid = True <BR />Jpeg.Canvas.Font.Quality = 4 '输出质量 Jpeg.Canvas.PrintText Jpeg.OriginalWidth/2-100,Jpeg.OriginalHeight/2+20,"www.51frw.cn" '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, 0.2 '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 (server.mappath(paths+filename))
set aa=nothing
set bb=nothing
set cc=nothing
Jpeg.close
MyJpeg.Close
Logo.Close
'''''''''''''''''''''''''''''''''''''''''''''''''''''
end if
getvalue=filename
end if
end function
Function subString(theStart,theLen)
dim i,c,stemp
objStream.Position=theStart-1
stemp=""
for i=1 to theLen
if objStream.EOS then Exit for
c=ascB(objStream.Read(1))
If c > 127 Then
if objStream.EOS then Exit for
stemp=stemp&Chr(AscW(ChrB(AscB(objStream.Read(1)))&ChrB(c)))
i=i+1
else
stemp=stemp&Chr(c)
End If
Next
subString=stemp
End function
Function inString(theStart,varStr)
dim i,j,bt,theLen,str
InString=0
Str=toByte(varStr)
theLen=LenB(Str)
for i=theStart to objStream.Size-theLen
if i>objstream.size then exit Function
objstream.Position=i-1
if AscB(objstream.Read(1))=AscB(midB(Str,1)) then
InString=i
for j=2 to theLen
if objstream.EOS then
inString=0
Exit for
end if
if AscB(objstream.Read(1))<>AscB(MidB(Str,j,1)) then
InString=0
Exit For
end if
next
if InString<>0 then Exit Function
end if
next
End Function
Private function GetFileName(FullPath)
If FullPath <> "" Then
GetFileName = mid(FullPath,InStrRev(FullPath, "")+1)
Else
GetFileName = ""
End If
End function
function toByte(Str)
dim i,iCode,c,iLow,iHigh
toByte=""
For i=1 To Len(Str)
c=mid(Str,i,1)
iCode =Asc(c)
If iCode<0 Then iCode = iCode + 65535
If iCode>255 Then
iLow = Left(Hex(Asc(c)),2)
iHigh =Right(Hex(Asc(c)),2)
toByte = toByte & chrB("&H"&iLow) & chrB("&H"&iHigh)
Else
toByte = toByte & chrB(AscB(c))
End If
Next
End function
%>
3---------------------------------------------------------------------------------------
用asp组件Persits.Jpeg给图片加水印，生成缩略图
代码如下:
<BR /><% <BR />FileName="1.jpg" <BR />Set Jpeg = Server.CreateObject("Persits.Jpeg") <BR />' 获取源图片路径 <BR />Path = Server.MapPath(FileName) <BR />' 打开源图片 <BR />'response.write(Path) <BR />Jpeg.Open Path <BR />' 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 <BR />If Jpeg.OriginalWidth / Jpeg.OriginalHeight > 1 then <BR />Jpeg.Width = 98 <BR />Jpeg.Height = int((98/Jpeg.OriginalWidth)*Jpeg.OriginalHeight) <BR />elseif Jpeg.OriginalWidth / Jpeg.OriginalHeight < 1 then <BR />Jpeg.Width = 98 <BR />Jpeg.Height= int((98/Jpeg.OriginalWidth)*Jpeg.Height) <BR />end if <BR />' 设定锐化效果 <BR />Jpeg.Sharpen 1, 130 <BR />' 向指定路径生成缩略图 <BR />Response.Write Server.MapPath(".") <BR />Jpeg.Save Server.MapPath(".")&"small"&filename <BR />'response.write filename1 <BR />'response.write Server.MapPath("uploadpic/small")&""&filename1 <BR />' 注意这两个Session <BR />'Session("PPP0")=GP_curPath&FileName <BR />'Session("PPP1")=GP_curPath&"small"&FileName <BR />Set Jpeg = Nothing <BR />'自动产生缩掠图结束 <BR />'大图片打水印开始 <BR />' 建立实例 <BR />Set Jpeg = Server.CreateObject("Persits.Jpeg") <BR />' 打开目标图片 <BR />Path = Server.MapPath(FileName) <BR />' 打开源图片 <BR />Jpeg.Open Path <BR />' 添加文字水印 <BR />Jpeg.Canvas.Font.Color = &HFF0000' 红色 <BR />Jpeg.Canvas.Font.Family = "宋体" <BR />Jpeg.Canvas.Font.Bold = True <BR />Jpeg.Canvas.Print 10, 10, "宏蓝科技" <BR />' 保存文件 <BR />Jpeg.Save Server.MapPath(".")&"smallw_"&filename <BR />' 注销对象 <BR />Set Jpeg = Nothing <BR />'大图片打水印结束 <BR />%> <BR /> <BR />4--------------------------------------------------------------------------------------- <BR /><STRONG>利用ASPJPEG组建加水印ASP实现代码</STRONG> <BR /><span><U></U></span> 代码如下:<BR /><% <BR />Class qswhImg <BR />dim aso <BR />Private Sub Class_Initialize <BR />set aso=CreateObject("Adodb.Stream") <BR />aso.Mode=3 <BR />aso.Type=1 <BR />aso.Open <BR />End Sub <BR />Private Sub Class_Terminate <BR />set aso=nothing <BR />End Sub <BR />Private Function Bin2Str(Bin) <BR />Dim I, Str <BR />For I=1 to LenB(Bin) <BR />clow=MidB(Bin,I,1) <BR />if ASCB(clow)<128 then <BR />Str = Str & Chr(ASCB(clow)) <BR />else <BR />I=I+1 <BR />if I <= LenB(Bin) then Str = Str & Chr(ASCW(MidB(Bin,I,1)&clow)) <BR />end if <BR />Next <BR />Bin2Str = Str <BR />End Function <BR />Private Function Num2Str(num,base,lens) <BR />'qiushuiwuhen (2002-8-12) <BR />dim ret <BR />ret = "" <BR />while(num>=base) <BR />ret = (num mod base) & ret <BR />num = (num - num mod base)/base <BR />wend <BR />Num2Str = right(string(lens,"0") & num & ret,lens) <BR />End Function <BR />Private Function Str2Num(str,base) <BR />'qiushuiwuhen (2002-8-12) <BR />dim ret <BR />ret = 0 <BR />for i=1 to len(str) <BR />ret = ret *base + cint(mid(str,i,1)) <BR />next <BR />Str2Num=ret <BR />End Function <BR />Private Function BinVal(bin) <BR />'qiushuiwuhen (2002-8-12) <BR />dim ret <BR />ret = 0 <BR />for i = lenb(bin) to 1 step -1 <BR />ret = ret *256 + ascb(midb(bin,i,1)) <BR />next <BR />BinVal=ret <BR />End Function <BR />Private Function BinVal2(bin) <BR />'qiushuiwuhen (2002-8-12) <BR />dim ret <BR />ret = 0 <BR />for i = 1 to lenb(bin) <BR />ret = ret *256 + ascb(midb(bin,i,1)) <BR />next <BR />BinVal2=ret <BR />End Function <BR />Function getImageSize(filespec) <BR />'qiushuiwuhen (2002-9-3) <BR />dim ret(3) <BR />aso.LoadFromFile(filespec) <BR />bFlag=aso.read(3) <BR />select case hex(binVal(bFlag)) <BR />case "4E5089": <BR />aso.read(15) <BR />ret(0)="PNG" <BR />ret(1)=BinVal2(aso.read(2)) <BR />aso.read(2) <BR />ret(2)=BinVal2(aso.read(2)) <BR />case "464947": <BR />aso.read(3) <BR />ret(0)="GIF" <BR />ret(1)=BinVal(aso.read(2)) <BR />ret(2)=BinVal(aso.read(2)) <BR />case "535746": <BR />aso.read(5) <BR />binData=aso.Read(1) <BR />sConv=Num2Str(ascb(binData),2 ,8) <BR />nBits=Str2Num(left(sConv,5),2) <BR />sConv=mid(sConv,6) <BR />while(len(sConv)<nBits*4) <BR />binData=aso.Read(1) <BR />sConv=sConv&Num2Str(ascb(binData),2 ,8) <BR />wend <BR />ret(0)="SWF" <BR />ret(1)=int(abs(Str2Num(mid(sConv,1*nBits+1,nBits),2)-Str2Num(mid(sConv,0*nBits+1,nBits),2))/20) <BR />ret(2)=int(abs(Str2Num(mid(sConv,3*nBits+1,nBits),2)-Str2Num(mid(sConv,2*nBits+1,nBits),2))/20) <BR />case "FFD8FF": <BR />do <BR />do: p1=binVal(aso.Read(1)): loop while p1=255 and not aso.EOS <BR />if p1>191 and p1<196 then exit do else aso.read(binval2(aso.Read(2))-2) <BR />do:p1=binVal(aso.Read(1)):loop while p1<255 and not aso.EOS <BR />loop while true <BR />aso.Read(3) <BR />ret(0)="JPG" <BR />ret(2)=binval2(aso.Read(2)) <BR />ret(1)=binval2(aso.Read(2)) <BR />case else: <BR />if left(Bin2Str(bFlag),2)="BM" then <BR />aso.Read(15) <BR />ret(0)="BMP" <BR />ret(1)=binval(aso.Read(4)) <BR />ret(2)=binval(aso.Read(4)) <BR />else <BR />ret(0)="" <BR />end if <BR />end select <BR />ret(3)="width=""" & ret(1) &""" height=""" & ret(2) &"""" <BR />getimagesize=ret <BR />End Function <BR />End Class <BR />SavefullPath="326151745wldn.jpg" '图片路径赋值 或 图片路径变量赋值 <BR />'取得图片的宽度 <BR />Set qswh = new qswhImg <BR />arr = qswh.getImageSize(Server.Mappath(SavefullPath)) <BR />Set qswh = Nothing <BR />str_ImgWidth=arr(1) <BR />str_ImgHeight=arr(2) <BR />If Int(str_ImgWidth) > 600 Then <BR />str_ImgWidth = 600 <BR />Else <BR />str_ImgWidth = str_ImgWidth <BR />End If <BR />'加水印 <BR />If Int(str_ImgWidth) > 300 And Int(str_ImgHeight) > 100 Then <BR />LocalFile=Server.MapPath(SavefullPath) <BR />TargetFile=Server.MapPath(SavefullPath) <BR />Dim Jpeg <BR />Set Jpeg = Server.CreateObject("Persits.Jpeg") <BR />If -2147221005=Err then <BR />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 <BR />Response.End() <BR />End If <BR />Jpeg.Open (LocalFile) '打开图片 <BR />If err.number then <BR />Response.Write("<script language='javascript'>alert('打开图片失败,请检查路径！');history.back();</script>") <BR />Response.End() <BR />End if <BR />Dim aa <BR />aa=Jpeg.Binary '将原始数据赋给aa <BR />'=========加文字水印================= <BR />Jpeg.Canvas.Font.Color = &Hfffffff '水印文字颜色 <BR />Jpeg.Canvas.Font.Family = Arial '字体 <BR />Jpeg.Canvas.Font.Bold = True '是否加粗 <BR />Jpeg.Canvas.Font.Size = 20 '字体大小 <BR />Jpeg.Canvas.Font.ShadowColor = &H000000 '阴影色彩 <BR />Jpeg.Canvas.Font.ShadowYOffset = 1 <BR />Jpeg.Canvas.Font.ShadowXOffset = 1 <BR />Jpeg.Canvas.Brush.Solid = True <BR />Jpeg.Canvas.Font.Quality = 10 ' '输出质量 <BR />Jpeg.Canvas.PrintText Jpeg.OriginalWidth/2-40,Jpeg.OriginalHeight/2-10,"网站建设" '水印位置及文字 <BR />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 <BR />'============调整文字透明度================ <BR />Set MyJpeg = Server.CreateObject("Persits.Jpeg") <BR />MyJpeg.OpenBinary aa <BR />Set Logo = Server.CreateObject("Persits.Jpeg") <BR />Logo.OpenBinary bb <BR />MyJpeg.DrawImage 0,0, Logo, 0.5 '0.3是透明度 <BR />cc=MyJpeg.Binary '将最终结果赋值给cc,这时也可以生成目标图片了 <BR />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
%>
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