pscrolling

Performs scrolling of image or region map.

Synopsis

pscrolling direction shift [-m mask] [im_in|-] [im_out|-]

Description

pscrolling translates the content of the input image (or region map) im_in to shift pixels in the specified direction. Pixels that are moved out the image are set to the other side of the image.

Parameters

direction is in the interval [0..2] where:
- 0: along x axis.
- 1: along y axis.
- 2: along z xis.
shift is a positive or negative integer. It is measured in pixel unit.

Inputs

im_in: an image or a region map.

Outputs

im_out: an object of the same type as im_in.

Result

Returns SUCCESS or FAILURE.

Examples

Scrolls the tangram.pan image of 50 pixels from the left:

   pscrolling 0 50 tangram.pan a.pan

C++ prototype

Errc PScrolling( const Img3duc &im_in,Img3duc &im_out, int direction, Long shift );

Version française

Construction de l'enroulé d'une image.

Author: Régis Clouard