select_grayvalues_from_channelsselect_grayvalues_from_channelsSelectGrayvaluesFromChannelsselect_grayvalues_from_channelsSelectGrayvaluesFromChannelsSelectGrayvaluesFromChannels (Operator)

Name

select_grayvalues_from_channelsselect_grayvalues_from_channelsSelectGrayvaluesFromChannelsselect_grayvalues_from_channelsSelectGrayvaluesFromChannelsSelectGrayvaluesFromChannels — Selection of gray values of a multi-channel image using an index image.

Signature

Description

The operator select_grayvalues_from_channelsselect_grayvalues_from_channelsSelectGrayvaluesFromChannelsselect_grayvalues_from_channelsSelectGrayvaluesFromChannelsSelectGrayvaluesFromChannels selects gray values from the different channels of MultichannelImageMultichannelImageMultichannelImageMultichannelImageMultichannelImagemultichannelImage. The channel number for each pixel is determined from the corresponding pixel value in IndexImageIndexImageIndexImageIndexImageIndexImageindexImage. If MultichannelImageMultichannelImageMultichannelImageMultichannelImageMultichannelImagemultichannelImage and IndexImageIndexImageIndexImageIndexImageIndexImageindexImage contain the same number of images, the corresponding images are processed pairwise. Otherwise, IndexImageIndexImageIndexImageIndexImageIndexImageindexImage must contain only one single image. In this case, the gray value selection is performed for each image of MultichannelImageMultichannelImageMultichannelImageMultichannelImageMultichannelImagemultichannelImage according to IndexImageIndexImageIndexImageIndexImageIndexImageindexImage .

Parallelization

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

Parameters

Example (C++ (HALCON 5.0-10.0))

compose3(Focus0,Focus1,Focus2,&MultiFocus);
depth_from_focus(MultiFocus,&Depth,&Confidence,'highpass','next_maximum');
mean_image(Depth,&Smooth,15,15);
select_grayvalues_from_channels(MultiChannel,Smooth,SharpImage);

Possible Predecessors

depth_from_focusdepth_from_focusDepthFromFocusdepth_from_focusDepthFromFocusDepthFromFocus, mean_imagemean_imageMeanImagemean_imageMeanImageMeanImage

Possible Successors

disp_imagedisp_imageDispImagedisp_imageDispImageDispImage

See also

count_channelscount_channelsCountChannelscount_channelsCountChannelsCountChannels

Module

Foundation