Optimizes a directory of images using the specified optimization options,
and saves the optimized images to a new directory with the same original hierarchy.
Syntax
Parameters
- codecs
- The RasterCodecs object used internally in the optimization operation to load an image and optimize it.
- inputDirectory
- A String that contains the full directory path to the images to be optimized.
- outputDirectory
- A String that contains the full directory path to be used when saving the optimized image(s).
- options
- The options used in the optimization process.
- fileExtensions
- A String that contains the extensions of the files to be optimized.
For example:
- To optimize all “gif” and “jpeg” files, fileExtensions should be set to "*.gif;*.jpeg".
- To optimize all the supported files found in the inputDirectory directory, regardless of their extensions, fileExtensions should be set to "*.*".
- includeSubDirectories
- true to optimize sub-directories, false otherwise.
- directoryCallback
- Optional callback function that provides user information about the image(s) being optimized,
such as the completion percentage for the current image being optimized, and the completion percentage for all files being optimized.
Example
This example will optimize all Jpg files found in a specific directory, and save them into a separate folder
Visual Basic | Copy Code |
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Private _imageNo As Integer
Public Sub TestDirImageOptimizer()
_imageNo = 0
RasterCodecs.Startup()
Dim codecs As RasterCodecs = New RasterCodecs()
Dim inputDirectory As String = "C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images"
Dim outputDirectory As String = "C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\OptimizedImages"
Dim optimizer As ImageOptimizer = New ImageOptimizer()
Dim options As ImageOptimizerOptions = ImageOptimizerOptions.Default
optimizer.OptimizeDirectory(codecs, _
inputDirectory, _
outputDirectory, _
options, _
"*.jpg", _
False, _
AddressOf ImageOptimizerDirectory)
RasterCodecs.Shutdown()
End Sub
Public Function ImageOptimizerDirectory(ByVal data As ImageOptimizerDirectoryData) As Boolean
Console.WriteLine(String.Format("File Percent = {0}%, Total Percent = {1}%", data.FilePercent, data.TotalPercent))
If (_imageNo = data.TotalFolderFilesCount) Then
Console.WriteLine("Optimization Operation Completed Successfully")
Return True
ElseIf (data.Status = ImageOptimizerDirectoryStatus.PreOptimizingImage) Then
Dim text As String = String.Format("Optimizing Image {0} ?\n", data.InputFileName)
Dim result As DialogResult = MessageBox.Show(text, "", MessageBoxButtons.YesNoCancel)
If (result = DialogResult.Yes) Then
data.Options = ImageOptimizerOptions.Default
Return True
ElseIf (result = DialogResult.No) Then
_imageNo += 1
data.SkipImage = True
Else
Return False
End If
ElseIf (data.FilePercent = 100) Then
_imageNo += 1
Dim msg As String = String.Format("Optimizing File ( {0} of {1} ) \n" + _
"--------------------------------\n" + _
"Source File Name = {2}\n" + _
"Detination File Name = {3}\n" + _
"No of Pages = {4}\n", _
_imageNo, data.TotalFolderFilesCount, data.InputFileName, data.OutputFileName, data.ImageInfo.TotalPages)
Console.WriteLine(msg)
End If
Return True
End Function |
C# | Copy Code |
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int _imageNo; public void TestDirImageOptimizer( ) { _imageNo = 0; // Initialize the RasterCodecs class RasterCodecs.Startup(); RasterCodecs codecs = new RasterCodecs(); // The input and output directories string inputDirectory = @"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images"; string outputDirectory = @"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\OptimizedImages"; // Initialize a new Optimizer object ImageOptimizer optimizer = new ImageOptimizer(); // Optimization Options ImageOptimizerOptions options = ImageOptimizerOptions.Default; optimizer.OptimizeDirectory(codecs, inputDirectory, outputDirectory, options, "*.jpg", false, ImageOptimizerDirectory); //shutdown the RasterCodecs class. RasterCodecs.Shutdown(); } bool ImageOptimizerDirectory(ImageOptimizerDirectoryData data) { Console.WriteLine(string.Format("File Percent = {0}%, Total Percent = {1}%", data.FilePercent, data.TotalPercent)); if(_imageNo == data.TotalFolderFilesCount) { // Operation Done. Console.WriteLine("Optimization Operation Completed Successfully"); return true; } else if(data.Status == ImageOptimizerDirectoryStatus.PreOptimizingImage) { string text = string.Format("Optimizing Image {0} ?\n", data.InputFileName); DialogResult result = MessageBox.Show(text, "", MessageBoxButtons.YesNoCancel); if(result == DialogResult.Yes) { // Optimize the image using the default options. data.Options = ImageOptimizerOptions.Default; return true; } else if(result == DialogResult.No) { // Skip this image. _imageNo++; data.SkipImage = true; } else // Stop the whole operation. return false; } else if(data.FilePercent == 100) { _imageNo++; // Displaying information about the optimized image. string msg = string.Format("Optimizing File ( {0} of {1} ) \n" + "--------------------------------\n" + "Source File Name = {2}\n" + "Detination File Name = {3}\n" + "No of Pages = {4}\n", _imageNo, data.TotalFolderFilesCount, data.InputFileName, data.OutputFileName, data.ImageInfo.TotalPages); Console.WriteLine(msg); } return true; } |
Remarks
Requirements
Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family
See Also