HighQualityRotate Method
Summary
Perform high quality rotation on a black and white image.
Example
This example will show the difference between normal rotation (IImageProcessingService.Rotate) and high quality rotation (HighQualityRotate) when performed on a 1 bits/pixel image.
Imports Leadtools.Services
Imports leadtools.services.datacontracts._2009._01
Imports leadtools.services.raster.datacontracts._2009._01
Imports leadtools.services.imageprocessing.datacontracts._2009._01
Public Sub HighQualityRotateExample()
' Get an image
Dim tifFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "ocr1.tif")
Dim normalRotateFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "ocr1_NormalRotated.tif")
Dim highQualityRotateFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "ocr1_HighQualityRotated.tif")
Dim angle As Integer = 30 * 100
Dim fillColor As String = "White"
Dim sourceBinaryData As RawBinaryData = New RawBinaryData()
sourceBinaryData.Data = File.ReadAllBytes(tifFileName)
Dim convertOptions As RasterConvertOptions = New RasterConvertOptions()
convertOptions.Source = sourceBinaryData
convertOptions.Destination = Nothing
convertOptions.Format = RasterImageFormat.Tif
convertOptions.FirstPage = 1
convertOptions.LastPage = 1
convertOptions.BitsPerPixel = 1
convertOptions.QualityFactor = 2
' Load the image, rotate normally by 30 degrees and save
Dim client As ImageProcessingServiceClient = New ImageProcessingServiceClient()
Dim request As RotateRequest = New RotateRequest()
request.ConvertOptions = convertOptions
request.RegionData = Nothing
request.Angle = angle
request.Flags = RotateCommandFlags.Resize Or RotateCommandFlags.Bicubic
request.FillColor = fillColor
Dim response As CommandResponse = client.Rotate(request)
If Not response.Destination Is Nothing Then
If TypeOf response.Destination Is RawBinaryData Then
File.WriteAllBytes(LeadtoolsExamples.Common.ImagesPath.Path & normalRotateFileName, (TryCast(response.Destination, RawBinaryData)).Data)
End If
End If
client.Close()
' Load the image, rotate with high quality by 30 degrees and save
Dim documentClient As DocumentProcessingServiceClient = New DocumentProcessingServiceClient()
Dim documentRequest As HighQualityRotateRequest = New HighQualityRotateRequest()
documentRequest.ConvertOptions = convertOptions
documentRequest.RegionData = Nothing
documentRequest.Angle = angle
documentRequest.Flags = HighQualityRotateFlags.Resize Or HighQualityRotateFlags.BestQuality
documentRequest.FillColor = fillColor
response = documentClient.HighQualityRotate(documentRequest)
If Not response.Destination Is Nothing Then
If TypeOf response.Destination Is RawBinaryData Then
File.WriteAllBytes(LeadtoolsExamples.Common.ImagesPath.Path & highQualityRotateFileName, (TryCast(response.Destination, RawBinaryData)).Data)
End If
End If
documentClient.Close()
' Now compare the saved TIF files and notice the difference in quality between
' the normal rotate and high quality
End Sub
Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
using Leadtools.Services;
using leadtools.services.datacontracts._2009._01;
using leadtools.services.raster.datacontracts._2009._01;
using leadtools.services.imageprocessing.datacontracts._2009._01;
public void HighQualityRotateExample()
{
// Get an image
string tifFileName = Path.Combine(LEAD_VARS.ImagesDir, "ocr1.tif");
string normalRotateFileName = Path.Combine(LEAD_VARS.ImagesDir,"ocr1_NormalRotated.tif");
string highQualityRotateFileName = Path.Combine(LEAD_VARS.ImagesDir,"ocr1_HighQualityRotated.tif");
int angle = 30 * 100;
string fillColor = "White";
RawBinaryData sourceBinaryData = new RawBinaryData();
sourceBinaryData.Data = File.ReadAllBytes(tifFileName);
RasterConvertOptions convertOptions = new RasterConvertOptions();
convertOptions.Source = sourceBinaryData;
convertOptions.Destination = null;
convertOptions.Format = RasterImageFormat.Tif;
convertOptions.FirstPage = 1;
convertOptions.LastPage = 1;
convertOptions.BitsPerPixel = 1;
convertOptions.QualityFactor = 2;
// Load the image, rotate normally by 30 degrees and save
{
ImageProcessingServiceClient client = new ImageProcessingServiceClient();
RotateRequest request = new RotateRequest();
request.ConvertOptions = convertOptions;
request.RegionData = null;
request.Angle = angle;
request.Flags = RotateCommandFlags.Resize | RotateCommandFlags.Bicubic;
request.FillColor = fillColor;
CommandResponse response = client.Rotate(request);
if (response.Destination != null)
{
if (response.Destination is RawBinaryData)
File.WriteAllBytes(LeadtoolsExamples.Common.ImagesPath.Path + normalRotateFileName, (response.Destination as RawBinaryData).Data);
}
client.Close();
}
// Load the image, rotate with high quality by 30 degrees and save
{
DocumentProcessingServiceClient client = new DocumentProcessingServiceClient();
HighQualityRotateRequest request = new HighQualityRotateRequest();
request.ConvertOptions = convertOptions;
request.RegionData = null;
request.Angle = angle;
request.Flags = HighQualityRotateCommandFlags.Resize | HighQualityRotateCommandFlags.BestQuality;
request.FillColor = fillColor;
CommandResponse response = client.HighQualityRotate(request);
if (response.Destination != null)
{
if (response.Destination is RawBinaryData)
File.WriteAllBytes(LeadtoolsExamples.Common.ImagesPath.Path + highQualityRotateFileName, (response.Destination as RawBinaryData).Data);
}
client.Close();
}
// Now compare the saved TIF files and notice the difference in quality between
// the normal rotate and high quality
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
