Method Image.Image()->outline()

Method outline

object outline()
object outline(int olr, int olg, int olb)
object outline(int olr, int olg, int olb, int bkgr, int bkgg, int bkgb)
object outline(array(array(int)) mask)
object outline(array(array(int)) mask, int olr, int olg, int olb)
object outline(array(array(int)) mask, int olr, int olg, int olb, int bkgr, int bkgg, int bkgb)
object outline_mask()
object outline_mask(int bkgr, int bkgg, int bkgb)
object outline_mask(array(array(int)) mask)
object outline_mask(array(array(int)) mask, int bkgr, int bkgg, int bkgb)

Description

Makes an outline of this image, ie paints with the given color around the non-background pixels.

Default is to paint above, below, to the left and the right of these pixels.

You can also run your own outline mask.

The outline_mask function gives the calculated outline as an alpha channel image of white and black instead.

original	masked through threshold	...and outlined with red

Parameter mask

mask matrix. Default is ({({0,1,0}),({1,1,1}),({0,1,0})}).

Parameter olr

Parameter olg

Parameter olb

outline color. Default is current.

Parameter bkgr

Parameter bkgg

Parameter bkgb

background color (what color to outline to); default is color of pixel 0,0.

Parameter div

division factor, default is 1.0.

Returns

the new image object

Note

no antialias!