CornerPoints Property

Summary

Array of Leadtools.LeadPoint values that determine the new locations of image corners.

Syntax

C++/CLI

Python

public LeadPoint[] CornerPoints { get; set; }

public: 
property array<LeadPoint>^ CornerPoints { 
   array<LeadPoint>^ get(); 
   void set (    array<LeadPoint>^ ); 
}

CornerPoints # get and set (PerspectiveCommand)

Property Value

Array of Leadtools.LeadPoint values that determine the new locations of image corners. It should contain four points; points at indices 0, 1, 2 and 3 determine the new locations of left-top, right-top, left-bottom and right-bottom image corners respectively. The new locations of image corners should keep the relative relation between corners: for example, the point at index 1 should be to the right of the point at index 0 and up from the point at index 3. Also, the point at index 2 should be to the left of the point at index 3 and down from the point at index 0 and so on. All new locations should be inside the image.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.SpecialEffects; 
 
 
public void PerspectiveCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "sample1.cmp")); 
 
   // Prepare the command 
   LeadPoint[] cornerPoint = new LeadPoint[4]; 
   cornerPoint[0].X = image.Width * 3 / 9; 
   cornerPoint[0].Y = image.Height * 1 / 12; 
   cornerPoint[1].X = image.Width * 3 / 4; 
   cornerPoint[1].Y = image.Height * 2 / 12; 
   cornerPoint[2].X = image.Width * 2 / 10; 
   cornerPoint[2].Y = image.Height * 8 / 10; 
   cornerPoint[3].X = image.Width * 10 / 11; 
   cornerPoint[3].Y = image.Height * 7 / 10; 
   PerspectiveCommand command = new PerspectiveCommand(); 
   command.CornerPoints = cornerPoint; 
   command.FillColor = new RasterColor(255, 255, 255); 
   command.Type = PerspectiveCommandType.Color; 
   command.Run(image); 
   codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24); 
 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

PerspectiveCommand Class

PerspectiveCommand Members

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Help Version 22.0.2023.3.31

Leadtools.ImageProcessing.SpecialEffects Assembly

Introduction

Getting Started

Namespaces

Leadtools.ImageProcessing.SpecialEffects Namespace

Assemblies