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- Newsgroups: comp.sys.sgi.bugs
- Path: sparky!uunet!mcsun!sun4nl!estwmz.wm.estec.esa.nl!guy
- From: guy@wmsg02.wm.estec.esa.nl (Guy Brooker)
- Subject: imgworks and Greyscale TIFF
- Message-ID: <C0J7DL.EGq@wm.estec.esa.nl>
- Sender: news@wm.estec.esa.nl
- Organization: ESA/Estec/WMS, Noordwijk, The Netherlands
- Date: Fri, 8 Jan 1993 10:48:56 GMT
- Lines: 24
-
- Perhaps this is a bug in the ImageVision Library. If you load a grey
- scale Tiff into imgworks, and save it as an SGI file, one gets garbage
- out. imgworks seems to consider it is working with a colour dataset rather
- than monochrome, as various operations behave in a bizare manner. Infact
- loading and manipulating the grey scale image, after working with a colour
- tiff, causes imgworks to crash.
-
- A workaround is to restart before using the grey scale image, immediately
- use the function 'Colour to Greyscale' which seems to invert the image (?),
- then 'Invert' to return to normal. From then on its OK, and recognised as
- Grey Scale. Saveing as an SGI image then works correctly....
-
- Guy
-
- --
-
- ------------------------------------- Guy Brooker
- Internet: guy@wm.estec.esa.nl European Space Research and
- guy@estwm0.dnet.estec.esa.nl Technology Centre (ESTEC)
- gbrooker@estec.esa.nl
- Bitnet : gbrooker@estec SPAN : ESTERS::GUY
- Phone : +31-1719-83611 Fax : +31-1719-85617
- Mail : ESTEC JW/WMS, Keplerlaan 1, 2200AG NOORDWIJK, The Netherlands
-
-