Histogram Property

Summary

An array of 32-bit integers that charts the number of times each intensity level occurs in the image.

Syntax

Objective-C

C++/CLI

Java

Python

public long[] Histogram { get; }

@property (nonatomic, assign, readonly, nullable) uint64_t *histogram NS_RETURNS_INNER_POINTER;

public long[] getHistogram();

public: 
property array<int64>^ Histogram { 
   array<int64>^ get(); 
}

Histogram # get  (HistogramCommand)

Property Value

An array of 64-bit integers that charts the number of times each intensity level occurs in the image.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Color; 
 
 
public void HistogramCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg")); 
 
   // Prepare the command 
   HistogramCommand command = new HistogramCommand(); 
   long[] histogramValues; 
   //Create the red-channel histogram. 
   command.Channel = HistogramCommandFlags.Red | HistogramCommandFlags.AllBits; 
   command.Run(image); 
   codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24); 
   histogramValues = command.Histogram; 
 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}