# im.object

0th

Percentile

##### Class of Images

A class "im" to represent a two-dimensional pixel image.

Keywords
spatial
##### Details

An object of this class represents a two-dimensional pixel image. It specifies

• the dimensions of the rectangular array of pixels
• $x$and$y$coordinates for the pixels
• a numeric value (grey value'') at each pixel

##### code

image.default(xcol, yrow, t(im))

ll

##### tab

matrix of values dim dimensions of matrix v xrange range of $x$ coordinates of image window yrange range of $y$ coordinates of image window xstep width of one pixel ystep height of one pixel xcol vector of $x$ coordinates of centres of pixels yrow vector of $y$ coordinates of centres of pixels

• row
• y
• x

##### Warnings

The internal representation of images is likely to change in the next release of this package.

im, Kmeasure, setcov