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Mathematica > Data Manipulation > Image Processing & Analysis > Basic Image Manipulation > ImageTake >

BUILT-IN MATHEMATICA SYMBOL

ImageTake

gives an image consisting of the first n rows of image.

gives an image consisting of the last n rows of image.

gives rows

through

gives the image that spans

and

ImageTake takes the rows of an image to be numbered from top to bottom, starting at 1.

	All	all elements
	n	elements 1 through n
	-n	last n elements
	{n}	element n only
	{m,n}	elements m through n inclusive
	{m,n,s}	elements m through n in steps of s

If fewer elements exist than are requested, ImageTake will just return the elements that are present.

Take the first 70 pixel rows from an image:

Take rows 80 to 200 and columns 100 to 200:

Take the first 70 pixel rows from an image:

Out[1]=

Take rows 80 to 200 and columns 100 to 200:

Out[1]=

Taking rows 40 to 2 gives rows 2 to 40 reversed:

Take every second row:

Downsample the image by extracting every second pixel: