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ImageTools[PadImage] - pad an image to make it larger
Calling Sequence
PadImage( img, height, width, opts )
Parameters
img
-
Image; input image
height
(optional) range(integer); desired vertical index range
width
(optional) range(integer); desired horizontal index range
opts
(optional) equation(s) of the form option = value; specify options for the PadImage command
Description
The PadImage command increases the size of an image by adding padding around its edges.
The img parameter must be of type Image.
The optional height and width parameters specify the range of indices for the height and width of the padded image. The padded dimensions must be larger than the original dimensions. These override other dimension settings (border, top, etc.).
Options
bottom = nonnegint
If specified, sets the width of the padding on the bottom edge.
border = nonnegint
Specifies the width of the padding around any otherwise unspecified edges. The default is 0.
fill = numeric, list(numeric), reflect, replicate
Specifies how to fill the padding. If numeric, then that value is inserted everywhere. If a list of numeric values, then each layer of a color image is filled with the appropriate value in the list. If reflect is specified, then the image is reflected into the padding. If replicate is specified, then the edge values are extended into the padding. The default is 0.
left = nonnegint
If specified, sets the width of the padding on the left edge.
right = nonnegint
If specified, sets the width of the padding on the right edge.
top = nonnegint
If specified, sets the width of the padding on the top edge.
reindex = truefalse
If true then the indices of the returned image are reindexed so that they start at 1. The default is false.
Examples
See Also
ImageTools, ImageTools[Height], ImageTools[Width]
Download Help Document