mean_n

Herror ::mean_n ( Hobject Image, Hobject *ImageMean ) HImage HImage::MeanN ( void ) const HImageArray HImageArray::MeanN ( void ) const

Average gray values over several channels.

The operator ::mean_n 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.

Parameters

`Image` (input_object)	multichannel-image(-array) `->` Hobject: HImage(Array) ( byte / real )
Multichannel gray image.

`ImageMean` (output_object)	singlechannelimage(-array) `->` Hobject : HImage(Array)* ( byte / real )
Result of averaging.

Example

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

Possible Predecessors

::compose2, ::compose3, ::compose4, ::add_channels

Possible Successors

::disp_image

See also

::count_channels

Module

Image filters