comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » Re: grey scale

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: grey scale [message #12481]

Fri, 14 August 1998 00:00

wmc
Messages: 117
Registered: February 1995

Senior Member

Harry Reisig (hreisig@engin.umich.edu) writes:
> We tried loadct, 0 - but it is not publishing quality. Is there another
> grey scale that give sharper images? We are trying to print color images,
> which gives a lot of information that is lost in ct 0.

I recently had what may be the same problem - (though its not an IDL colour
table, I'm pretty sure, because I was printing in BW): colour indexes 0-255 are
not all distinguishable on our laser printer. 252-254 are the same; 250-251 ditto,
etc etc mostly in groups of 2. At the lower end, 0-15 and 16-31 are
indistinguishable. They are also dithered, which is OK for the large boxes
of my test-colours print, but if you tried to print a high-res image the dithering
would probably get in the way. It looks to me like our laser printers fault -
perhaps you have the same problem?

- William, just guessing again.

---
William M Connolley | wmc@bas.ac.uk | http://www.nbs.ac.uk/public/icd/wmc/
Climate Modeller, British Antarctic Survey | Disclaimer: I speak for myself

Report message to a moderator

[Message index]

		Re: grey scale By: wmc on Fri, 14 August 1998 00:00
		Re: grey scale By: davidf on Thu, 13 August 1998 00:00
		Re: grey scale By: David Foster on Thu, 13 August 1998 00:00
		Re: grey scale By: Martin Schultz on Thu, 13 August 1998 00:00
		Re: grey scale By: Richard G. French on Thu, 13 August 1998 00:00
		Re: grey scale By: Harry Reisig on Thu, 13 August 1998 00:00
		Re: grey scale By: Saeid.Zoonematkermani on Thu, 13 August 1998 00:00
		Re: grey scale By: Martin Schultz on Thu, 13 August 1998 00:00

Previous Topic:	widgets and objects
Next Topic:	IDL5.1: Fitting image and map w general projection

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Nov 29 07:29:21 PST 2025

Total time taken to generate the page: 0.40207 seconds