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IntelligentUpScaleCommand Class

Summary

Automatically increases image size while preserving important features. It can also preserve certain objects chosen by the user without affecting the natural look of the image.

Syntax
C#
VB
C++
public class IntelligentUpScaleCommand : RasterCommand 
  
Public Class IntelligentUpScaleCommand  
   Inherits RasterCommand 
public ref class IntelligentUpScaleCommand : public RasterCommand   

Remarks
  • Upscaling using a mask is performed only on the width dimension. To upscale using a mask on the height dimension, rotate the image, upscale it on the width dimension and rotate back to the original orientation.
  • There are no upscaling steps when a mask is used.
  • The removal area in upscaling sets an area as unimportant, allowing a particular area to be stretched.
  • The color of an area to be removed must be different than the colors in the image.
  • The color of an area to be preserved must be different than the colors in the image and different from the removal area color.
  • If multiple removal objects exist, then all of them have to be the same color. This also applies to the color of an area to be preserved.
  • If MaskImage has a preserve area and no remove area, then the newWidth must be specified.
  • Draw the mask over the area to be removed a little larger than the area to be removed. This does not always hold true but is a good practice to follow.
  • Make the mask wide enough in order to force upscaling to remain in the remove area. This does not always hold true but is a good practice to follow.
  • This command does not support signed data images.
  • This command does not support 32-bit grayscale images.

Example
C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.SpecialEffects; 
 
public void IntelligentUpScaleCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Sample3.cmp")); 
 
   IntelligentUpScaleCommand command = new IntelligentUpScaleCommand(); 
   command.UpScalingOrder = 1; 
   command.NewWidth = image.Width + 100; 
   command.NewHeight = image.Height; 
   command.UsePreserveObjectColor = false; 
   command.UseRemoveObjectColor = false; 
 
   // Apply the intelligent UpScale on the image. 
   command.Run(image); 
   codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "IntelligentUpScaleResult.jpg"), RasterImageFormat.Jpeg, 24); 
 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.SpecialEffects 
 
Public Sub IntelligentUpScaleCommandExample() 
 
   ' Load an image 
   Dim Codecs As RasterCodecs = New RasterCodecs() 
   Codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim image As RasterImage = Codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Sample3.cmp")) 
 
   Dim Command As IntelligentUpScaleCommand = New IntelligentUpScaleCommand() 
   Command.UpScalingOrder = 1 
   Command.NewWidth = image.Width + 100 
   Command.NewHeight = image.Height 
   Command.UsePreserveObjectColor = False 
   Command.UseRemoveObjectColor = False 
 
   ' Apply the intelligent UpScale on the image. 
   Command.Run(image) 
   Codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "IntelligentUpScaleResult.jpg"), RasterImageFormat.Jpeg, 24) 
 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class 

Requirements

Target Platforms

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Leadtools.ImageProcessing.SpecialEffects Assembly