Click or drag to resize
Accord.NET (logo)

ImageStatistics Class
Gather statistics about image in RGB color space.
Inheritance Hierarchy
SystemObject
  Accord.ImagingImageStatistics

Namespace:  Accord.Imaging
Assembly:  Accord.Imaging (in Accord.Imaging.dll) Version: 3.8.0
Syntax
Copy
public class ImageStatistics
Request Example View Source

The ImageStatistics type exposes the following members.

Constructors
  NameDescription
Public methodImageStatistics(Bitmap)
Initializes a new instance of the ImageStatistics class.
Public methodImageStatistics(UnmanagedImage)
Initializes a new instance of the ImageStatistics class.
Public methodImageStatistics(Bitmap, Byte)
Initializes a new instance of the ImageStatistics class.
Public methodImageStatistics(Bitmap, Bitmap)
Initializes a new instance of the ImageStatistics class.
Public methodImageStatistics(UnmanagedImage, UnmanagedImage)
Initializes a new instance of the ImageStatistics class.
Public methodImageStatistics(UnmanagedImage, Byte)
Initializes a new instance of the ImageStatistics class.
Top
Properties
  NameDescription
Public propertyBlue
Histogram of blue channel.
Public propertyBlueWithoutBlack
Histogram of blue channel excluding black pixels
Public propertyGray
Histogram of gray channel.
Public propertyGrayWithoutBlack
Histogram of gray channel channel excluding black pixels.
Public propertyGreen
Histogram of green channel.
Public propertyGreenWithoutBlack
Histogram of green channel excluding black pixels.
Public propertyIsGrayscale
Value wich specifies if the processed image was color or grayscale.
Public propertyPixelsCount
Total pixels count in the processed image.
Public propertyPixelsCountWithoutBlack
Total pixels count in the processed image excluding black pixels.
Public propertyRed
Histogram of red channel.
Public propertyRedWithoutBlack
Histogram of red channel excluding black pixels.
Top
Methods
  NameDescription
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Protected methodFinalize
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object.)
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
Top
Extension Methods
  NameDescription
Public Extension MethodHasMethod
Checks whether an object implements a method with the given name.
(Defined by ExtensionMethods.)
Public Extension MethodIsEqual
Compares two objects for equality, performing an elementwise comparison if the elements are vectors or matrices.
(Defined by Matrix.)
Public Extension MethodTo(Type)Overloaded.
Converts an object into another type, irrespective of whether the conversion can be done at compile time or not. This can be used to convert generic types to numeric types during runtime.
(Defined by ExtensionMethods.)
Public Extension MethodToTOverloaded.
Converts an object into another type, irrespective of whether the conversion can be done at compile time or not. This can be used to convert generic types to numeric types during runtime.
(Defined by ExtensionMethods.)
Top
Remarks

The class is used to accumulate statistical values about images, like histogram, mean, standard deviation, etc. for each color channel in RGB color space.

The class accepts 8 bpp grayscale and 24/32 bpp color images for processing.

Sample usage:

Copy
// gather statistics
ImageStatistics stat = new ImageStatistics( image );
// get red channel's histogram
Histogram red = stat.Red;
// check mean value of red channel
if ( red.Mean > 128 )
{
    // do further processing
}
See Also