mean_nmean_nmean_nMeanNMeanN (Operator)

Name

mean_nmean_nmean_nMeanNMeanN — Average gray values over several channels.

Signature

Description

The operator mean_nmean_nmean_nMeanNMeanN generates the pixel-by-pixel mean value of all channels . For each coordinate point the sum of all gray values at this coordinate is calculated. The result is the mean of the gray values (sum divided by the number of channels). The output image has one channel.

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)

compose3(Channel1,Channel2,Channel3,&MultiChannel);
mean_n(MultiChannel,&Mean);

Possible Predecessors

compose2compose2compose2Compose2Compose2, compose3compose3compose3Compose3Compose3, compose4compose4compose4Compose4Compose4, compose5compose5compose5Compose5Compose5, add_channelsadd_channelsadd_channelsAddChannelsAddChannels

Alternatives

rank_nrank_nrank_nRankNRankN

See also

count_channelscount_channelscount_channelsCountChannelsCountChannels, mean_imagemean_imagemean_imageMeanImageMeanImage

Module

Foundation