Function Repository Resource:

ArrayCropPad

Source Notebook

Crop uniform values from the edges of an array

Contributed by: Wolfram Staff

ResourceFunction["ArrayCropPad"][array]

crops uniform values from the edges of the specified array.

ResourceFunction["ArrayCropPad"][array,m]

gives array with exactly m zeros of padding on each side.

ResourceFunction["ArrayCropPad"][array,m,form]

uses the specified form of padding.

Details and Options

ResourceFunction["ArrayCropPad"][array] currently works only on arrays that can be represented as Image[array].

In ResourceFunction["ArrayCropPad"][array,padding,form], the padding specification and the form specification are the same as in ArrayPad.

In ResourceFunction["ArrayCropPad"][array,padding,…] the array is cropped before padding is added.

Examples

Basic Examples (3)

Create a two-dimensional array and crop zeros at edges:

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In[2]:=

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Plot the original and the cropped arrays:

In[3]:=

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Add some "white space" around the cropped array:

In[4]:=

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Add the specified border value:

In[5]:=

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In[6]:=

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Applications (2)

Without ArrayCropPad, this leaves lots of "white space":

In[7]:=

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ArrayCropPad crops in on the structure of interest, leaving specified padding:

In[8]:=

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Version History

1.0.0 – 28 August 2020

Related Resources

Author Notes

The use of ImageCrop is a hack. For example, this will crop in y as well as x.

License Information

This work is licensed under a Creative Commons Attribution 4.0 International License