1.1.1.0 image.crop

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image.crop - Function

1.1.1 Crop masked pixels from the perimeter of an image.

Description

This method crops masked slices from the perimeter of an image. The axes parameter specifies which axes to consider. Axes not specified will not be cropped. An empty array implies that all axes should be considered. If wantreturn is True, an image analysis tool attached to the output image is returned. If False, none is returned.

Arguments


Inputs
outfile	Output image name. If not specified, no persistent image is created.
	allowed:	string
	Default:
axes	Axes to crop. Empty array means consider all axes.
	allowed:	intArray
	Default:
overwrite	Overwrite the output if it exists? Default False
	allowed:	bool
	Default:	false
region	Region selection. See ”help par.region” for details. Default is to use the full image.
	allowed:	any
	Default:	variant
box	Rectangular region to select in direction plane. See ”help par.box” for details. Default is to use the entire direction plane.
	allowed:	string
	Default:
chans	Channels to use. See ”help par.chans” for details. Default is to use all channels.
	allowed:	string
	Default:
stokes	Polarization selection. Default is all.
	allowed:	string
	Default:
mask	Mask to use. See help par.mask. Default is none.
	allowed:	string
	Default:
stretch	Stretch the mask if necessary and possible? See help par.stretch. Default False
	allowed:	bool
	Default:	false
wantreturn	Return an image analysis tool attached to the created subimage?
	allowed:	bool
	Default:	true

Returns
image

Example

        # myimage is of shape 20, 20, 20 with only the inner 16 x 14 x 12 pixels unmasked
        ia.open("myimage")
        # crop masked slices on all axes
        cropped = ia.crop()
        # returns [16, 14, 12]
        cropped.shape()
        cropped.done()
        # crop only the masked slices at the edges of the image along axis 1
        cropped2 = ia.crop(outfile="", axes=[1])
        ia.done()
        # returns [20, 14, 20]
        cropped2.shape()
        cropped2.done()

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