id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
578	Is psFitsHeaderFromImage really necessary?	robert.desonia@…	eugene	"psFitsHeaderFromImage creates header keywords like BITPIX, NAXES, NAXIS*, etc. from its input 
psImage.  psFitsWriteImage also creates those keywords cooresponding to its input psImage 
dimensions (implicitly as it calls fits_create_img to create a new HDU).

I'm not sure why one would really need to psFitsHeaderFromImage if the keywords are set 
automagically at HDU creation and changing them via a psFitsWriteHeader can easily invalidate the 
HDU, as the HDU is not resized to fit the new values of the keywords in question.

Can you explain the purpose you saw in psFitsHeaderFromImage and how you see it used?

-rdd"	defect	closed	high		PSLib SDRS	unspecified	normal	fixed		robert.desonia@…