comp.lang.idl-pvwave archive: archive » Re: In Praise of HISTOGRAM

Home » Public Forums » archive » Re: In Praise of HISTOGRAM

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

Re: In Praise of HISTOGRAM [message #30247]

Sat, 13 April 2002 06:43

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

David Fanning (david@dfanning.com) was dumb enough to
write the other day:

> Hang on a minute! What if we create an integer array, put
> one image in the low bits and the other image in the high
> bits. Won't each pixel have a unique number value? Then,
> what if we take a histogram of that? Won't that give us
> a vector of 2^16-1 values? And what if we reform that
> into the 256 by 256 array we are looking for?

Uh, it was pointed out to me that HIST_2D was doing
this since about 1938 or so. I feel a bit like Columbus
re-discovering the New World. :-(

Cheers,

David

--
David W. Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

Report message to a moderator

[Message index]

		Re: In Praise of HISTOGRAM By: David Fanning on Sat, 13 April 2002 06:43
		Re: In Praise of HISTOGRAM By: G Karas on Fri, 12 April 2002 11:44

Previous Topic:	Re: basic soubt with fltarr
Next Topic:	Re: Finding the Non-Matching elements in two vectors

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 17:25:12 PDT 2025

Total time taken to generate the page: 0.00382 seconds