C# Class Accord.Imaging.Filters.YCbCrReplaceChannel

Replace channel of YCbCr color space.

Replaces specified YCbCr channel of color image with specified grayscale imge.

The filter is quite useful in conjunction with YCbCrExtractChannel filter (however may be used alone in some cases). Using the YCbCrExtractChannel filter it is possible to extract one of YCbCr channel, perform some image processing with it and then put it back into the original color image.

The filter accepts 24 and 32 bpp color images for processing.

Sample usage:

 // create YCbCrExtractChannel filter for channel extracting YCbCrExtractChannel extractFilter = new YCbCrExtractChannel( YCbCr.CbIndex ); // extract Cb channel Bitmap cbChannel = extractFilter.Apply( image ); // invert the channel Invert invertFilter = new Invert( ); invertFilter.ApplyInPlace( cbChannel ); // put the channel back into the source image YCbCrReplaceChannel replaceFilter = new YCbCrReplaceChannel( YCbCr.CbIndex, cbChannel ); replaceFilter.ApplyInPlace( image );

Initial image:

Result image:

Inheritance: BaseInPlacePartialFilter

Show file Open project: accord-net/framework Class Usage Examples

Public Methods

Method	Description
YCbCrReplaceChannel ( short channel ) : System	Initializes a new instance of the YCbCrReplaceChannel class.
YCbCrReplaceChannel ( short channel, Bitmap channelImage ) : System	Initializes a new instance of the YCbCrReplaceChannel class.
YCbCrReplaceChannel ( short channel, UnmanagedImage channelImage ) : System	Initializes a new instance of the YCbCrReplaceChannel class.

Protected Methods

Method	Description
ProcessFilter ( UnmanagedImage image, Rectangle rect ) : void	Process the filter on the specified image.

Private Methods

Method	Description
YCbCrReplaceChannel ( ) : System

Method Details

ProcessFilter() protected method

Process the filter on the specified image.

Channel image was not specified. Channel image size does not match source /// image size.

protected ProcessFilter ( UnmanagedImage image, Rectangle rect ) : void
image	UnmanagedImage	Source image data.
rect	System.Drawing.Rectangle	Image rectangle for processing by the filter.
return	void

YCbCrReplaceChannel() public method

Initializes a new instance of the YCbCrReplaceChannel class.

public YCbCrReplaceChannel ( short channel ) : System
channel	short	YCbCr channel to replace.
return	System

YCbCrReplaceChannel() public method

Initializes a new instance of the YCbCrReplaceChannel class.

public YCbCrReplaceChannel ( short channel, Bitmap channelImage ) : System
channel	short	YCbCr channel to replace.
channelImage	System.Drawing.Bitmap	Channel image to use for replacement.
return	System

YCbCrReplaceChannel() public method

Initializes a new instance of the YCbCrReplaceChannel class.

public YCbCrReplaceChannel ( short channel, UnmanagedImage channelImage ) : System
channel	short	YCbCr channel to replace.
channelImage	UnmanagedImage	Unmanaged channel image to use for replacement.
return	System