Author Topic: Sequence sequence one shot color camera  (Read 5744 times)

Offline DB

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Sequence sequence one shot color camera
« on: 2011 March 19 19:31:33 »
I have followed Harry's advice with a SBIG XCM2000 one shot color camera:

>>
Yes it should be
1) Dark /flat application
2) debayer
3) Alignment
4) Image integration

There is also a Batch debayer tool under scripts , also there is the new script to do all this in one go
>>
This worked fine - thanks again Harry!

The resulting RGB image of M83 is completely grey. Have i missed something in the processing to obtain color in the image or is that just it for M83 without filter wheels to pick up difference emission spectra?

Thanks.

Offline Nocturnal

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Re: Sequence sequence one shot color camera
« Reply #1 on: 2011 March 19 19:47:14 »
Hi,

there's a difference between an image that looks gray and one that really is. What does the histogram look like? If you see 3 separate lines/hills and they're not exactly the same then you have a color image. Processing will bring out the color.
Best,

    Sander
---
Edge HD 1100
QHY-8 for imaging, IMG0H mono for guiding, video cameras for occulations
ASI224, QHY5L-IIc
HyperStar3
WO-M110ED+FR-III/TRF-2008
Takahashi EM-400
PIxInsight, DeepSkyStacker, PHD, Nebulosity

Offline DB

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Re: Sequence sequence one shot color camera
« Reply #2 on: 2011 March 21 01:42:00 »
Hi Sander

There are three separate peaks with a slight difference between them.  What steps after a histogram stretch is needed to bring the image out?

regards

David

Offline Nocturnal

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Re: Sequence sequence one shot color camera
« Reply #3 on: 2011 March 21 06:14:56 »
Ok so you have a color image that looks grey. You'll need to brighten it with a non-linear histogram stretch and possibly increase saturation with a curvetransformation. I'm pretty sure Harry has videos on these topics.
Best,

    Sander
---
Edge HD 1100
QHY-8 for imaging, IMG0H mono for guiding, video cameras for occulations
ASI224, QHY5L-IIc
HyperStar3
WO-M110ED+FR-III/TRF-2008
Takahashi EM-400
PIxInsight, DeepSkyStacker, PHD, Nebulosity