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sv_ip_edge(sv_ip) SunVision IP sv_ip_edge(sv_ip)

NAME

sv_ip_edge - edge enhancement filter

DESCRIPTION

The sv_ip_edge filter provides a number of edge enhancement algorithms.

SUPERCLASS

sv_ip_filter

INSTANCE VARIABLES

method is the name of the filter to use. LYMB scalar objects reprensenting the valid values are available in $LYMB_ROOT/scripts/sv_ip/sv-ip- constants.scr.

hwidth is the horizontal width parameter for those algorithms that require it.

vwidth is the vertical width parameter for those algorithms that require it.

MESSAGES

No new messages.

EXAMPLE

<sv-ip-constants sv_ip_display new: car_image data_in=`car_ip' title= `Original data' render! ;

string new: `title' string_format=`Edge detector using 1 algorithm' = `ipPREWITT' ;

sv_ip_edge new: edge data_in=`car_ip' method=ipPREWITT hwidth=5 vwidth=5 ;

sv_ip_display new: image data_in=`edge' title= title render! ;

motif create!;

motif_selection_box new: sb parent=motif ok_action=`render' create! ;

motif_list new: box_list parent=sb id=[sb list_id?] add_item:( `ipPREWITT', `ipROBERTS', `ipCOMPASS', `ipFREI_CHEN', `ipMARR_HILDRETH', `ipNEVATIA_BABU', `ipROBINSON3', `ipROBINSON5', `ipMACLEOD', `ipARGYLE', `ipKIRSCH', `ipBOXCAR', `ipSOBEL', `ipD_OF_G', `ipWTD_LINE', `ipUNWTD_LINE' ) ;

hash_table new: methods key=`ipPREWITT' install: ipPREWITT key=`ipROBERTS' install: ipROBERTS key=`ipCOMPASS' install: ipCOMPASS key=`ipFREI_CHEN' install: ipFREI_CHEN key=`ipMARR_HILDRETH' install: ipMARR_HILDRETH key=`ipNEVATIA_BABU' install: ipNEVATIA_BABU key=`ipROBINSON3' install: ipROBINSON3 key=`ipROBINSON5' install: ipROBINSON5 key=`ipMACLEOD' install: ipMACLEOD key=`ipARGYLE' install: ipARGYLE key=`ipKIRSCH' install: ipKIRSCH key=`ipBOXCAR' install: ipBOXCAR key=`ipSOBEL' install: ipSOBEL key=`ipD_OF_G' install: ipD_OF_G key=`ipWTD_LINE' install: ipWTD_LINE key=`ipUNWTD_LINE' install: ipUNWTD_LINE ;

actions new: `render' tick_actions=` edge method=[methods key= [sb @ `textString' string_value?] value?] ;

title = [sb @ `textString' string_value?]; object # [image window?] store_name: title; image render!; ' ;

motif on! start!;