VBS调用Photoshop批量生成缩略图的代码
2014-05-09来源:易贤网

这篇文章主要为大家分享了通过vbs调用Photoshop批量生成缩略图,需要的朋友可以参考下

模仿腾讯新闻页,给KingCms添加了新闻页图片点播的代码,代码要求的图片点播格式如下:

0###http://www.website.org/UploadFile/123.jpg@@@/small/123.gif@@@8标题一***http://www.website.org/UploadFile/456.jpg@@@/small/456.gif@@@标题二***http://www.website.org/UploadFile/789.jpg@@@/small/789.gif@@@标题三

格式解释如下:

0代表第0页出现图片点播;

http://www.website.org/UploadFile/123.jpg是第一幅原图地址。/small/123.gif是第一幅缩略图地址,原图和缩略图名字一样,后缀不一样,原图是jpg,缩略图是gif。标题一是第一幅图片的说明文字;

第二幅、第三幅图片格式和第一幅图一样;

###、@@@、***为相应的分隔符。

-------------------------------------------------分割线--------------------------------------------------------

开始我是用手工来写这些图片格式,发现效率很低,一下午只发布了两篇新闻,就编写了相应的VBS脚本。

脚本一:采集新闻图片,并生成相应的图片格式代码

Directory = "原始图"

Directory = CreateObject("Scripting.FileSystemObject").GetFolder(".").Path & "\" & Directory & "\"

Call DeleteFiles(Directory)

strUrl = InputBox("请输入网址:")

If strUrl <> "" Then

Call getImages(strUrl)

End If

Function getImages(strUrl)

Set ie = WScript.CreateObject("InternetExplorer.Application")

ie.visible = True

ie.navigate strUrl

Do

Wscript.Sleep 500

Loop Until ie.ReadyState=4

Set objImgs = ie.document.getElementById("fontzoom").getElementsByTagName("img")

strTitles = InputBox("请输入图片配字:")

arrTitles = Split(strTitles, " ")

strCode = "0###"

For i=0 To objImgs.length - 1

If i>0 Then strCode = strCode + "***"

smallPic = Replace(Mid(objImgs(i).src, InStrRev(objImgs(i).src, "/")+1), "jpg", "gif")

strCode = strCode + objImgs(i).src + "@@@/small/" + smallPic + "@@@" + arrTitles(i)

SaveRemoteFile objImgs(i).src

Next

ie.Quit

InputBox "请复制结果:", , strCode

End Function

Sub SaveRemoteFile(RemoteFileUrl)

LocalFile = Directory & Mid(RemoteFileUrl, InStrRev(RemoteFileUrl, "/")+1)

Set xmlhttp = CreateObject("Microsoft.XMLHTTP")

With xmlhttp

.Open "Get", RemoteFileUrl, False, "", ""

.Send

GetRemoteData = .ResponseBody

End With

Set xmlhttp = Nothing

Set Ads = CreateObject("Adodb.Stream")

With Ads

.Type = 1

.Open

.Write GetRemoteData

.SaveToFile LocalFile, 2

.Cancel()

.Close()

End With

Set Ads=nothing

End Sub

Function DeleteFiles(strFolder)

Set objFSO = CreateObject("Scripting.FileSystemObject")

Set objFolder = objFSO.GetFolder(strFolder)

Set objFiles = objFolder.Files

For Each objFile in objFiles

objFile.Delete

Next

Set objFSO = Nothing

End Function

脚本二:调用Photoshop批量生成缩略图

Directory = "原始图" '原始图像的文件夹

NewDirectory = "缩略图" '保存缩小图的文件夹

Const psDoNotSaveChanges = 2

Const PsExtensionType_psLowercase = 2

Const psDisplayNoDialogs = 3

Const psLocalSelective = 7

Const psBlackWhite = 2

Const psNoDither = 1

limitHeight = 58 '最大高度

ImgResolution = 72 '解析度

Call DeleteFiles(NewDirectory)

Call Convert2Gif(Directory)

Function ReSizeImg(doc)

rsHeight = doc.height

Scale = 1.0

if rsHeight > limitHeight Then

Scale = limitHeight / (doc.height + 0.0)

rsWidth = doc.width * Scale

rsHeight = doc.height * Scale

End If

doc.resizeImage rsWidth, rsHeight, ImgResolution, 3

End Function

Function Convert2Gif(Directory)

Set app = CreateObject( "Photoshop.Application" )

app.bringToFront()

app.preferences.rulerUnits = 1 'psPixels

app.DisplayDialogs = psDisplayNoDialogs

Set gifOpt = CreateObject("Photoshop.GIFSaveOptions")

With gifOpt

.Palette = psLocalSelective

.Colors = 256

.Forced = psBlackWhite

.Transparency = False

.Dither = psNoDither

.Interlaced = False

End With

Set fso = CreateObject("Scripting.FileSystemObject")

If Not fso.FolderExists(Directory) Then

MsgBox "Photo Directory NOT Exists."

Exit Function

End If

Set objFiles = fso.GetFolder(Directory).Files

NewDirectory = fso.GetFolder(".").Path & "\" & NewDirectory & "\"

For Each objFile In objFiles

If Split(objFile.Name, ".")(1) <> "db" Then

Set doc = app.Open(objFile.Path)

Set app.ActiveDocument = doc

ReSizeImg(doc)

doc.SaveAs NewDirectory & Split(objFile.Name, ".")(0) & ".gif", gifOpt, True, PsExtensionType_psLowercase

Call doc.Close(psDoNotSaveChanges)

Set doc = Nothing

End If

Next

Set app = Nothing

End Function

Function DeleteFiles(strFolder)

Set objFSO = CreateObject("Scripting.FileSystemObject")

Set objFolder = objFSO.GetFolder(strFolder)

Set objFiles = objFolder.Files

For Each objFile in objFiles

objFile.Delete

Next

Set objFSO = Nothing

End Function

比较了一下,gif缩略图体积最小,所以就gif缩略图。关于VBS调用Photoshop,在Photoshop的C:\Program Files\Adobe\Adobe Photoshop CS4\Scripting\Documents目录下是说明文档,C:\Program Files\Adobe\Adobe Photoshop CS4\Scripting\Sample Scripts目录下是示例代码。如果要生成png缩略图,可以参考文档修改脚本相应的代码即可:

Set pngOpt = CreateObject("Photoshop.PNGSaveOptions")

With pngOpt

.Interlaced = False

End With

开始打算是调用Set Jpeg = CreateObject("Persits.Jpeg")来生成缩略图,好处是不用加载庞大的Photoshop,生成缩略图速度很快,但比起Photoshop图片质量差了一些,就放弃了。

本来的打算是不保存原图,直接打开网路图片,然后直接生成缩略图到本地。虽然Photoshop可以打开网络图片,但在脚本里调用Photoshop打开网络图片就不行,只好先保存网络图片到本地,然后再生成缩略图。

其实Photoshop自带了图片批处理功能:

窗口->动作->创建新动作->在PS中打开所有你想做的图片->选择其中一张图片,调整大小,另存为gif格式->关闭你已做好的图片->停止播放/记录。

文件->自动->批处理->“动作”栏中选你刚刚新创建的动作名称->点“源”下面的“选择”选择你想要处理照片的文件夹->“目标”下面“选择”另外一个你想保存缩略图的文件夹->确定。就OK了!

但比起程序来,显然程序要灵活的多,而且很多批处理效果只能靠程序实现,所以没有通过录制动作来生成缩略图。

生成相应的图片格式代码,也可以在地址栏输入以下JS代码:

javascript:D=prompt("图片配字","");E=D.split(" ");A=document.getElementById("fontzoom");B=A.getElementsByTagName("img");C="0###";for(i=0;i<B.length;i++){if(i>0) C+="***";C=C+B[i].src+"@@@/small/"+B[i].src.substring(B[i].src.lastIndexOf("/")+1).replace("jpg","gif")+"@@@"+E[i];}window.prompt("复制",C);void(0);

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