Subject: Re: Transitions using ADPro 2.5
Date: Thu, 19 May 94 12:54:04 CDT
From: drrogers@camelot.b24a.ingr.com (Dale R Rogers)

|I came in late on the thread. I understand that you want to do transitions
|on files before the PAR. Have you looked at Fred? Or Procontrol or Macro-
|System's (i forget the name right now)? 

	No.  I know they exist.  But I don't know if they solve the
	problem.

|Basically the transitions usually happen between 2 frames a enter and exit.
|Copy (export) them from the PAR as iffs and perform the function on them.
|
|If this is in the correct line and not a stupid response, send email I will
|continue on the MAIL List.

	It is a correct line.  However, I want to transition over more
	than 2 frames.  A typical transition in video may last a second or
	more.  That means a wipe or disolve over a series of 30 different
	frames; not just a change between two stills.  Also, it is my
	understanding that after an image is sent to the PAR it is JPEGed,
	or DPSs equivalent.  That is fine if it is done once.  However, I
	understand that the quality of the image goes down fast if the
	image is compressed more than once.  It is better to perform 
	image processing on files before they are sent to the PAR.  The PAR
	is the destination of the final frames beng readied for transfer
	to tape.  Otherwise you introduce two many artifacts.

	Dale

        ____________________________^____________________________
        dale r. rogers

        Intergraph Corporation
        Building Design & Management             MailStop: LR24A3
        drrogers@camelot.b24a.ingr.com        Tel: (205) 730-8294
                                    .


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