Name
deviation_ndeviation_nDeviationNdeviation_nDeviationNDeviationN — Calculate standard deviation over several channels.
deviation_ndeviation_nDeviationNdeviation_nDeviationNDeviationN generates the pixel-by-pixel standard deviation of
a multichannel gray value image. For each coordinate point p the expected
value is defined as the arithmetic mean:
where g_{c}(p) denominates the gray value at p on channel
c. n is the number of channels in the image.
The standard deviation itself is then calculated as:
Note that this formula produces the sample standard deviation. The
factor 2 is used to make better use of
the range of values of the output image format. The output image has one
channel.
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Automatically parallelized on domain level.
- Automatically parallelized on tuple level.
compose2compose2Compose2compose2Compose2Compose2,
compose3compose3Compose3compose3Compose3Compose3,
compose4compose4Compose4compose4Compose4Compose4,
compose5compose5Compose5compose5Compose5Compose5,
add_channelsadd_channelsAddChannelsadd_channelsAddChannelsAddChannels
mean_nmean_nMeanNmean_nMeanNMeanN
Foundation