pyramid-expand

pyramid_expand

skimage.transform.pyramid_expand(image, upscale=2, sigma=None, order=1, mode='reflect', cval=0) [source]

Upsample and then smooth image.

Parameters:

Parameters:	image : array Input image. upscale : float, optional Upscale factor. sigma : float, optional Sigma for Gaussian filter. Default is `2 * upscale / 6.0` which corresponds to a filter mask twice the size of the scale factor that covers more than 99% of the Gaussian distribution. order : int, optional Order of splines used in interpolation of upsampling. See `skimage.transform.warp` for detail. mode : {‘reflect’, ‘constant’, ‘edge’, ‘symmetric’, ‘wrap’}, optional The mode parameter determines how the array borders are handled, where cval is the value when mode is equal to ‘constant’. cval : float, optional Value to fill past edges of input if mode is ‘constant’.
Returns:	out : array Upsampled and smoothed float image.

image : array

Input image.

upscale : float, optional

Upscale factor.

sigma : float, optional

Sigma for Gaussian filter. Default is 2 * upscale / 6.0 which corresponds to a filter mask twice the size of the scale factor that covers more than 99% of the Gaussian distribution.

order : int, optional

Order of splines used in interpolation of upsampling. See skimage.transform.warp for detail.

mode : {‘reflect’, ‘constant’, ‘edge’, ‘symmetric’, ‘wrap’}, optional

The mode parameter determines how the array borders are handled, where cval is the value when mode is equal to ‘constant’.

cval : float, optional

Value to fill past edges of input if mode is ‘constant’.

Returns:

out : array

Upsampled and smoothed float image.