id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
311	No function uses PS_INTERPOLATE_*_VARIANCE?	robert.desonia@…	Paul Price	"The description for psImageInterpolateMode (section 4.6.3 in PSDC-430-007-12) 
states that the *_VARIANCE enum values would require modification of a variance 
image, but no function that uses psImageInterpolateMode has a variance image 
input, as far as I can see.   
 
Can you give me some additional information on implementation of the *_VARIANCE 
interpolate modes? 
 
-rdd"	defect	closed	high		PSLib SDRS	unspecified	normal	fixed