Author Topic: whoa, where'd them colours come from?  (Read 4563 times)

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Ian

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whoa, where'd them colours come from?
« on: Jul 04, 2002, 18:37:00 »
I see you've had another go at my pics then Greg :smile:

I'm going to go for less gain next time, to try and reduce that noise.

Whitters

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whoa, where'd them colours come from?
« Reply #1 on: Jul 05, 2002, 00:30:00 »
How about this, a composite of your M57 and the one I took last year



[ This Message was edited by: Whitters on 2002-07-04 16:44 ]

Ian

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whoa, where'd them colours come from?
« Reply #2 on: Jul 05, 2002, 00:38:00 »
that is good and clear. and colourful :smile:

I need to have another crack at this, I looked again at my raw captures and realised I wasn't running the camera at 640x480. Doh!

Is this one a rework of the greyscale on the gallery? And which camera etc?

Whitters

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whoa, where'd them colours come from?
« Reply #3 on: Jul 05, 2002, 00:45:00 »
Yep it's the one on the gallery, taken thru the C8 with the Starlight Express MX916, think it is the sum of five twenty second images.

Forgot to make it obvious, the luminance is from the MX916 the color is from Ian's modified Toucam Pro image.

[ This Message was edited by: Whitters on 2002-07-04 18:54 ]

Ian

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whoa, where'd them colours come from?
« Reply #4 on: Jul 05, 2002, 01:38:00 »
d'oh, re-read your message about it being a composite.  <slaps forehead> (need an emoticon for that one).

Why do you want to butcher a toucam if you have one of those cameras?

Whitters

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whoa, where'd them colours come from?
« Reply #5 on: Jul 05, 2002, 02:53:00 »
So I can get the color images, and for the crack. :grin:



[ This Message was edited by: Whitters on 2002-07-04 18:56 ]

Ian

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whoa, where'd them colours come from?
« Reply #6 on: Jul 05, 2002, 04:48:00 »
:grin: :grin: :grin:

Whitters

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whoa, where'd them colours come from?
« Reply #7 on: Jul 06, 2002, 04:22:00 »
:razz:

Ian

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whoa, where'd them colours come from?
« Reply #8 on: Jul 16, 2002, 00:22:00 »
that's got me thinking...

The limit of the Vesta/Toucam is the resolution (and noise) but it give reasonable colour information. I might look into a monochrome camera to provide a high res luminance image and use just the chrominance from the webcam. I guess that is how you made the composite?

btw, if anyone knows where I can get cheap peltiers, Maplins are showing theirs as discontinued...

Whitters

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« Reply #9 on: Jul 16, 2002, 07:52:00 »
I stole the idea of mixing the B/W luminance image with the colour. Some of the chaps at the BAA deep sky section meeting demo'ed it. Does seem to work well.

Ian

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whoa, where'd them colours come from?
« Reply #10 on: Jul 16, 2002, 08:40:00 »
I was thinking again about this, and whether swapping cameras is less hard work than using filters, but then again, the quality of the colour image is less important than the luminance so you need not spend so much time with the colour camera.

Course, you could do away with the colour cam altogether and use a hubble coffee table pic. In fact if you then do away with the mono camera and use a hubble pic for that too...

Whitters

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whoa, where'd them colours come from?
« Reply #11 on: Jul 17, 2002, 02:37:00 »
Fnar Fnar

Mike

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whoa, where'd them colours come from?
« Reply #12 on: Jul 17, 2002, 05:18:00 »
Hey, get rid of your scope altogether, paste lots of Hubble pics together seamlessly on your ceiling and lie on the carpet looking up at them through a toilet roll tube !!

MUCH cheaper !! And not dependent on the weather at all !!!
We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology. Carl Sagan

Ian

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whoa, where'd them colours come from?
« Reply #13 on: Jul 17, 2002, 17:24:00 »
you know Mike, I think you're on to something. I was going to cover the ceiling in tin foil and put lots of pinholes in it, but you idea is better because I won't need special binoculars that focus at 1m to stargaze :smile:

Mike

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whoa, where'd them colours come from?
« Reply #14 on: Jul 18, 2002, 01:56:00 »
Exactly, and it's far less dangerous. Wielding that pin around willy nilly could have someone's limbs off !
We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology. Carl Sagan

Ian

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whoa, where'd them colours come from?
« Reply #15 on: Jul 18, 2002, 17:34:00 »
particularly since the pin is glued to the end of a katana...

Mike

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whoa, where'd them colours come from?
« Reply #16 on: Jul 19, 2002, 01:54:00 »
Is that the sword or the japanese motorcycle ? Both would be just as dangerous I suppose !
We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology. Carl Sagan

Ian

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whoa, where'd them colours come from?
« Reply #17 on: Jul 19, 2002, 06:44:00 »
<cuts to picture of Ian poking holes in foil ceiling with a pin attached to a motorcycle>

a bit Terry Gilliam don't you think :smile:

Mike

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whoa, where'd them colours come from?
« Reply #18 on: Jul 19, 2002, 06:53:00 »
Very ! Might be an interesting and amusing Flash project ?!?!?!! :wink:
We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology. Carl Sagan