mirror_region

Herror ::mirror_region ( Hobject Region, Hobject *RegionMirror, const HTuple &RowColumn, const HTuple &WidthHeight ) HRegion HRegion::MirrorRegion ( const HTuple &RowColumn, const HTuple &WidthHeight ) const HRegionArray HRegionArray::MirrorRegion ( const HTuple &RowColumn, const HTuple &WidthHeight ) const

Reflect a region about the x- or y-axis.

::mirror_region reflects a region about the x- or y-axis (parameter RowColumn). The parameter WidthHeight specifies the corresponding image width or height respectively, i.e., it is two times the coordinate of the axis of symmetry.

Parameters

`Region` (input_object)	region(-array) `->` Hobject: HRegion(Array)
Region(s) to be reflected.

`RegionMirror` (output_object)	region(-array) `->` Hobject : HRegion(Array)*
Reflected region(s).
Number of elements: RegionMirror == Region

`RowColumn` (input_control)	string `->` HTuple.char *
Coordinate of the axis of symmetry.
Default value: 'row'
List of values: 'column', 'row'

`WidthHeight` (input_control)	integer `->` HTuple.long
Height or width of the corresponding image.
Default value: 512
Suggested values: 128, 256, 512, 525, 768, 1024
Typical range of values: `1 <= WidthHeight <= 1024` (lin)
Minimum increment: 1
Recommended increment: 1
Restriction: `WidthHeight > 0`

Example

read_image(&Image,"affe");
threshold(Image,&Seg,128.0,255.0);
mirror_region(Seg,&Mirror,"row",512);
disp_region(Mirror,WindowHandle);

Possible Predecessors

::threshold, ::connection, ::regiongrowing, ::pouring

Possible Successors

::select_shape, ::disp_region

Alternatives

::affine_trans_region

See also

::zoom_region

Module

Region processing