zoom (Image Processing Toolbox)

Zoom in and out of an image

Syntax

zoom on 
zoom off
zoom out
zoom reset
zoom
zoom xon
zoom yon
zoom(factor)
zoom(fig,option)

Description

zoom on turns on interactive zooming for the current figure. When zooming is enabled, clicking the mouse on a point within an axes changes the axes limits by a factor of 2, to either zoom in on or out from the point:

For a single-button mouse, zoom in by clicking the mouse button and zoom out by shift-clicking.

For a two- or three-button mouse, zoom in by clicking the left mouse button and zoom out by clicking the right mouse button.

Clicking and dragging over an axes when interactive zooming is enabled draws a rubber-band box. When the mouse button is released, the axes zoom in to the region enclosed by the rubber-band box.

Double-clicking within an axes returns the axes to its initial zoom setting.

zoom off turns zoom off in the current figure.

zoom out returns the plot to its initial zoom setting.

zoom reset remembers the current zoom setting as the initial zoom setting. Later calls to zoom out, or double-clicks when interactive zoom mode is enabled, return to this zoom level.

zoom toggles the interactive zoom status.

zoom xon and zoom yon set zoom on for the x- and y-axis, respectively.

zoom(factor) zooms in by the specified factor, without affecting the interactive zoom mode. By default, factor is 2. A factor between 0 and 1 specifies zooming out by 1/factor.

zoom(fig,option) applies the zoom command to the figure specified by fig. option is a string containing any of the above arguments. If you do not specify a figure, zoom works on the current figure.

See Also

imcrop

ycbcr2rgb Working with Function Functions