Resize image array

Fast downsampling of the first two dimensions in a multi-dimensional array

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Updated 12 Nov 2016

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Function to downsample an image stack based on averaging through a symmetric box filter in the first two dimensions. This is comparable to using other code such as imresize(DataIn,bin,'box') in a for loop but will perform much faster.
It will resize only the first two dimensions of any given data matrix while leaving additional dimension unchanged.
Usage: DataOut = arrayResize(DataIn,bin)
DataIn = x*y*n matrix to be downsampled.
bin = size of the box filter.
Downsampled image stack consists of averages of squares of the size bin*bin in the x and y dimension. If dimension x or y can not be divided by bin, the downsampled matrix will not contain the lower and right edges of DataIn that are above the highest divider.

Cite As

Simon Musall (2023). Resize image array (https://www.mathworks.com/matlabcentral/fileexchange/59877-resize-image-array), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2014b
Compatible with any release
Platform Compatibility
Windows macOS Linux

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Version Published Release Notes
1.1.0.0

Changed code description and image.
Changed title

1.0.0.0