Channel Transforms

Functions
Image	oevislib_net.Image.ConvertGradients (bool inUseAlphaChannel)
	Creates an RGB(A) image from a 2-channel image returned by Image::gradients.
Image	oevislib_net.Image.ConvertToMultiChannel (int inNewChannels=3, Optional< Region > inRoi=null)
	Creates a multichannel image from a monochromatic one by replicating its channel.
Image	oevislib_net.Image.ExtractChannel (int inChannelIndex, Optional< Region > inRoi=null)
	Extracts one channel from the image.
Image	oevislib_net.Image.MixChannels (int inCoeff1, int inCoeff2, int inCoeff3, int inCoeff4, int inDivider)
	Compute a linear combination of image channels.
Image	oevislib_net.Image.AverageChannels (Optional< Region > inRoi=null, int inWeight1=1, int inWeight2=1, int inWeight3=1, int inWeight4=1)
	Creates a monochromatic image by averaging its channels.
static Image	oevislib_net.Image.MergeChannels (Image inImage1, Image inImage2, Optional< Image > inImage3=null, Optional< Image > inImage4=null)
	Creates a multichannel image from several monochromatic ones.
void	oevislib_net.Image.ReverseChannels ()
	Reverses the order of the channels in the current image (callable only on a 3-channel image).
Array< Image >	oevislib_net.Image.Split ()
	Split image into its separate channels.
Image	oevislib_net.Image.AddChannels (Optional< Region > inRoi=null, bool inConsiderSaturation=false)
	Creates a monochromatic image by summing the values of the current image channels.

Detailed Description

Function Documentation

AddChannels()

Image oevislib_net.Image.AddChannels ( Optional< Region > inRoi = null, bool inConsiderSaturation = false )

inline

Creates a monochromatic image by summing the values of the current image channels.

Parameters

inRoi	Region of interest.
inConsiderSaturation	Whether to consider saturation or not.

Returns

Output image.

AverageChannels()

Image oevislib_net.Image.AverageChannels ( Optional< Region > inRoi = null, int inWeight1 = 1, int inWeight2 = 1, int inWeight3 = 1, int inWeight4 = 1 )

inline

Creates a monochromatic image by averaging its channels.

Parameters

inRoi	Region of interest.
inWeight1	Weight of the first channel. Range: [0, +inf).
inWeight2	Weight of the second channel. Range: [0, +inf).
inWeight3	Weight of the third channel. Range: [0, +inf).
inWeight4	Weight of the fourth channel. Range: [0, +inf).

Returns

Output image.

ConvertGradients()

Image oevislib_net.Image.ConvertGradients ( bool inUseAlphaChannel )

inline

Creates an RGB(A) image from a 2-channel image returned by Image::gradients.

The red channel will represent both the negative and positive values of the gradients in X direction, while the green channel will represent the gradients in Y direction. The alpha channel (if requested) is used to enhance the actual gradients found using their magnitude.

Parameters

inUseAlphaChannel

Whether to use the alpha channel to enhance the values or not.

Returns

Output image.

ConvertToMultiChannel()

Image oevislib_net.Image.ConvertToMultiChannel ( int inNewChannels = 3, Optional< Region > inRoi = null )

inline

Creates a multichannel image from a monochromatic one by replicating its channel.

Parameters

inNewChannels	New image's channels. Range: [1, 4].
inRoi	Region of interest.

Returns

Output image.

ExtractChannel()

Image oevislib_net.Image.ExtractChannel ( int inChannelIndex, Optional< Region > inRoi = null )

inline

Extracts one channel from the image.

Parameters

inChannelIndex	Channel index. Range: [0, 3].
inRoi	Region of interest.

Returns

Selected channel.

MergeChannels()

Image oevislib_net.Image.MergeChannels ( Image inImage1, Image inImage2, Optional< Image > inImage3 = null, Optional< Image > inImage4 = null )

inlinestatic

Creates a multichannel image from several monochromatic ones.

Parameters

inImage1	Image that becomes the first channel.
inImage2	Image that becomes the second channel.
inImage3	Image, if present, that becomes the third channel.
inImage4	Image, if present, that becomes the fourth channel.

Returns

Multichannel image.

MixChannels()

Image oevislib_net.Image.MixChannels ( int inCoeff1, int inCoeff2, int inCoeff3, int inCoeff4, int inDivider )

inline

Compute a linear combination of image channels.

Parameters

inCoeff1	Coefficient for the first channel. Range: [0, +inf).
inCoeff2	Coefficient for the second channel. Range: [0, +inf).
inCoeff3	Coefficient for the third channel. Range: [0, +inf).
inCoeff4	Coefficient for the fourth channel. Range: [0, +inf).
inDivider	Divider. Range: [1, +inf).

Returns

Output image.

ReverseChannels()

void oevislib_net.Image.ReverseChannels ( )

inline

Reverses the order of the channels in the current image (callable only on a 3-channel image).

Split()

Array< Image > oevislib_net.Image.Split ( )

inline

Split image into its separate channels.

Returns

Array of images, corresponding to the existing image's channels.