MinMaxBitsCommand Class

Summary

Gets the low and high bits of the values present in a 12 or 16-bit grayscale or a 48 or 64-bit color image. This class is available in the Medical Toolkits.

Syntax

Objective-C

C++/CLI

Java

Python

public class MinMaxBitsCommand : RasterCommand

@interface LTMinMaxBitsCommand : LTRasterCommand

public class MinMaxBitsCommand 
    extends RasterCommand

public ref class MinMaxBitsCommand : public RasterCommand

class MinMaxBitsCommand(RasterCommand):

Remarks

The minimum and maximum bit values can be used to specify the range of useful bits and to create a lookup table, for use in the WindowLevelCommand class.
This command supports 12 and 16-bit grayscale images. Support for 12 and 16-bit grayscale images is available only in the Document/Medical toolkits.
This command does not support 32-bit grayscale images.
LEADTOOLS supports two types of LUTs for 10-16-bit grayscale images (8-bit LUT and 16-bit LUT). Typical grayscale image display and processing is done using an 8-bit LUT. But, you can also use a 16-bit LUT, which offers more precision. Some special video cards and monitors also support display of grayscale images using a 16-bit LUT.

For more information, refer to Introduction to Image Processing With LEADTOOLS. For more information, refer to Grayscale Images.

Example

Run the MinMaxBitsCommand on an image and gets the minimum and maximum bits for an image.

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void MinMaxBitsCommandExample() 
{ 
   // 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 
   MinMaxBitsCommand command = new MinMaxBitsCommand(); 
   int MinimumBit = 0; //the low bit variable. 
   int MaximumBit = 0; //the high bit variable. 
   //Get min/max bits. 
   command.Run(image); 
   MinimumBit = command.MinimumBit; 
   MaximumBit = command.MaximumBit; 
   MessageBox.Show("The Minuimum Bit is : " + MinimumBit.ToString() + ", The Maximum Bit is : " + MaximumBit.ToString()); 
 
} 
 
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.RasterImage; 
import leadtools.codecs.*; 
import leadtools.imageprocessing.core.*; 
 
 
public void minMaxBitsCommandExample() { 
    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 
    MinMaxBitsCommand command = new MinMaxBitsCommand(); 
    int minimumBit = 0; // the low bit variable. 
    int maximumBit = 0; // the high bit variable. 
 
    // Get min/max bits. 
    command.run(image); 
    minimumBit = command.getMinimumBit(); 
    maximumBit = command.getMaximumBit(); 
 
    System.out 
            .println("Command run and the Minimum Bit is : " + minimumBit + ", The Maximum Bit is : " + maximumBit); 
    assertTrue(minimumBit <= maximumBit); 
}