ColorizeGrayCommandData Constructor(RasterColor,int)

Summary

Initializes a new ColorizeGrayCommandData class object with explicit parameters.

Syntax

Objective-C

C++/CLI

Java

Python

public ColorizeGrayCommandData( 
   RasterColor color, 
   int threshold 
)

- (instancetype)initWithColor:(LTRasterColor *)color threshold:(NSUInteger)threshold NS_DESIGNATED_INITIALIZER;

public ColorizeGrayCommandData( 
   RasterColor color, 
   int threshold 
);

public: 
ColorizeGrayCommandData(  
   RasterColor color, 
   int threshold 
)

__init__(self,color,threshold) # Overloaded constructor

Parameters

color
Contains the color used for coloring the range of intensities set in Threshold.

threshold
The maximum value of the pixels to be colored using the color parameter. Pixels with a value less than or equal to the value in this parameter will be colored using the Color parameter. If the ColorizeGrayCommandData class object is the last in the GrayColors array, then this value is ignored and the maximum possible value will be used instead.

The maximum value depends on the image bits per pixel. For 8, 12 and 16-bit images the maximum value is 255, 4095 and 65535 respectively. However if you enter a value higher than the maximum, the value will be clipped at the maximum value.

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void ColorizeGrayCommandExample() 
{ 
   // Load an image 
 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"ImageProcessingDemo\Beauty16.jpg")); 
 
   // Prepare the command 
   ColorizeGrayCommandData[] pGrayColors = new ColorizeGrayCommandData[6]; 
   for (int i = 0; i < 6; i++) 
      pGrayColors[i] = new ColorizeGrayCommandData(); 
   pGrayColors[0].Threshold = 9999; 
   pGrayColors[1].Threshold = 19999; 
   pGrayColors[2].Threshold = 29999; 
   pGrayColors[3].Threshold = 39999; 
   pGrayColors[4].Threshold = 49999; 
   pGrayColors[5].Threshold = 59999; 
 
   pGrayColors[0].Color = new RasterColor(255, 0, 0); 
   pGrayColors[1].Color = new RasterColor(0, 255, 0); 
   pGrayColors[2].Color = new RasterColor(0, 0, 255); 
   pGrayColors[3].Color = new RasterColor(0, 255, 255); 
   pGrayColors[4].Color = new RasterColor(255, 0, 255); 
   pGrayColors[5].Color = new RasterColor(255, 255, 0); 
 
   ColorizeGrayCommand command = new ColorizeGrayCommand(); 
   command.GrayColors = pGrayColors; 
   //Call the command 
   command.Run(image); 
 
   // Save the resulted image 
   codecs.Save(command.DestinationImage, Path.Combine(LEAD_VARS.ImagesDir, "ColorizeGrayResult.Bmp"), RasterImageFormat.Bmp, 24); 
 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

 
import java.io.File; 
import java.io.IOException; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.imageprocessing.core.*; 
 
 
public void colorizeGrayCommandExample() { 
 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.setThrowExceptionsOnInvalidImages(true); 
 
   RasterImage image = codecs.load(combine(LEAD_VARS_IMAGES_DIR, "beauty16.jpg")); 
 
   // Prepare the command 
   ColorizeGrayCommandData[] pGrayColors = new ColorizeGrayCommandData[6]; 
   for (int index = 0; index < 6; index++) { 
      pGrayColors[index] = new ColorizeGrayCommandData(); 
   } 
   pGrayColors[0].setThreshold(9999); 
   pGrayColors[1].setThreshold(19999); 
   pGrayColors[2].setThreshold(29999); 
   pGrayColors[3].setThreshold(39999); 
   pGrayColors[4].setThreshold(49999); 
   pGrayColors[5].setThreshold(59999); 
 
   pGrayColors[0].setColor(new RasterColor(255, 0, 0)); 
   pGrayColors[1].setColor(new RasterColor(0, 255, 0)); 
   pGrayColors[2].setColor(new RasterColor(0, 0, 255)); 
   pGrayColors[3].setColor(new RasterColor(0, 255, 255)); 
   pGrayColors[4].setColor(new RasterColor(255, 0, 255)); 
   pGrayColors[5].setColor(new RasterColor(255, 255, 0)); 
 
   ColorizeGrayCommand command = new ColorizeGrayCommand(); 
   command.setGrayColors(pGrayColors); 
   // Call the command 
   command.run(image); 
 
   // Save the resulted image 
   codecs.save(command.getDestinationImage(), combine(LEAD_VARS_IMAGES_DIR, "ColorizeGrayResult.Bmp"), 
         RasterImageFormat.BMP, 24); 
 
   System.out.println("Command run and image saved to " + combine(LEAD_VARS_IMAGES_DIR, "ColorizeGrayResult.Bmp")); 
   assertTrue(new File(combine(LEAD_VARS_IMAGES_DIR, "ColorizeGrayResult.Bmp")).exists()); 
}

Requirements

Target Platforms

Reference

ColorizeGrayCommandData Class

ColorizeGrayCommandData Members

Overload List

Download our FREE evaluation

Help Version 23.0.2024.3.3

Leadtools.ImageProcessing.Core Assembly

Introduction

Getting Started

Namespaces

Leadtools.ImageProcessing.Core Namespace

Assemblies