convol_channelsT_convol_channelsConvolChannelsConvolChannelsconvol_channels (Operator)

Name

convol_channelsT_convol_channelsConvolChannelsConvolChannelsconvol_channels — Perform a convolution along the channel dimension.

Signature

convol_channels(MultichannelImage : ImageSmoothed : Filter, Border : )

Description

convol_channelsconvol_channelsConvolChannelsConvolChannelsconvol_channels applies the linear filter FilterFilterFilterfilterfilter along the channel dimension of the multichannel image MultichannelImageMultichannelImageMultichannelImagemultichannelImagemultichannel_image and stores the result in ImageSmoothedImageSmoothedImageSmoothedimageSmoothedimage_smoothed. Each pixel is processed independently. Border handling along the channel dimension is specified by BorderBorderBorderborderborder and either continues the current value ('constant'"constant""constant""constant""constant") or mirrors the values ('mirror'"mirror""mirror""mirror""mirror").

This operator can be used, for example, to smooth hyperspectral images across spectra. Filter parameters can be generated, for instance, with gen_savitzky_golay_filtergen_savitzky_golay_filterGenSavitzkyGolayFilterGenSavitzkyGolayFiltergen_savitzky_golay_filter.

Execution Information

Multithreading type: reentrant (runs in parallel with non-exclusive operators).
Multithreading scope: global (may be called from any thread).
Automatically parallelized on domain level.

Parameters

MultichannelImageMultichannelImageMultichannelImagemultichannelImagemultichannel_image (input_object) multichannel-image(-array) → object (byte / uint2 / real)

Multichannel image to be smoothed.

ImageSmoothedImageSmoothedImageSmoothedimageSmoothedimage_smoothed (output_object) image(-array) → object (real)

Smoothed multichannel image.

FilterFilterFilterfilterfilter (input_control) real-array → (real)

Filter coefficients.

BorderBorderBorderborderborder (input_control) string → (string)

Type of boundary treatment.

Default: 'constant' "constant" "constant" "constant" "constant"

List of values: 'constant'"constant""constant""constant""constant", 'mirror'"mirror""mirror""mirror""mirror"

Possible Predecessors

gen_savitzky_golay_filtergen_savitzky_golay_filterGenSavitzkyGolayFilterGenSavitzkyGolayFiltergen_savitzky_golay_filter

Module

Foundation

Operators