Messages

1

General / Re: HaRGB combining - "Vicent's Method" questions

« on: 2012 September 07 11:17:02 »

Q) All the posts about this HaRGB combination just talk about the Ha and RGB.  Haven't seen too much mentioned about L.  Does that get added at the end, after Ha introduced into the R?  Or when reference is made to the RGB, is that actually an LRGB image being referred to?  I don't think so, because as I understand it, L is best combined with RGB after a bit of stretching?

A) Two options here:

1) You didn't capture L. Just put your Ha image as the L. You'll end with a Ha(Ha+R)GB.

2) You did capture L. You need to combine somehow L and Ha. Use pixelmath to reach the best results here. I recommend L + (Ha * constant) here.

Point 2 is a too short answer to me. Combine L and Ha some how, OK and then? In the tutotial from Harry Ha is added to the red channel. Then there is this two part LRGB video on the PI homepage, were the L part is added to the RGB image after stretch. This is total unclear to me, now. I think this Ha LRGB image stuff could need an additonal video tutorial ;-).

2

Tutorials and Processing Examples / Re: Harry's video tutorials

« on: 2012 September 07 10:42:25 »

Hi Harry,

I am just watching your H alpha adding video tutorial and there is one thing which really annoying me. In the first pixel math step, you say just use the red channel here, but you add your RGB image there. So to my understanding this is wrong? Or do I miss something? Then I have an addional question, is it normal only to add the H alpha to the red channel? Then I also know, to add it in linear stage, but when should I do the ATrousWavlet Noise Reduction, befor or after it?

Thanks,
Tobias

3

Bug Reports / Re: BatchPreprocessing script disappeared

« on: 2012 August 15 16:23:39 »

I fresh installed PI (64) on a new Laptop and installed all updates. The script is missing, too. I found the scipt in the PI folder in subfolder and added it now as discussed here. So when I now try to run the script it says:

Processing script file: C:/Program Files/PixInsight/src/scripts/BatchPreprocessing/BatchPreprocessing.js
*** Error [000]: C:/Program Files/PixInsight/src/scripts/BatchPreprocessing/BatchPreprocessing-GUI.js, line 820: Error: ProcessInstance.iconsByProcessId(): unknown process class: 'CosmeticCorrection'

Never had such problems before on my main PC.

Thanks,
Tobias

Edit: I just started PI in the reset mode and now it seems to work... lets see....

4

Tutorials and Processing Examples / Re: DSLR_RAW work flow tools PI 1.6.x - 1.7.x

« on: 2012 May 26 11:50:26 »

One short question about the script. I did some images yesterday with my newton and I have now the lights, darks, flats and dark flats. I thought the batch processing script would take alle the images and I just run it. But I don't find the correct place for the dark flats? How shall I include them?

Thanks,
Tobias

5

Tutorials and Processing Examples / Re: DSLR_RAW Workflow PI 1.6.x - 1.7.x - incl, image calibration

« on: 2012 May 07 08:03:09 »

Hi astropixel,
I allready looked into the video tutorials from Harry. They are really helpfull. In the video for the batch preprocessing script I got the understanding that I first have to generate the master darks and so on (this could be related to language understanding problems -  my english ist OK, but sometimes I don't get a word correct ;-) ). But I think, in fact that we have the script now, it would be very helpfull to integrate it's usage in this thread here. What is almoste done by your last two posts.

I will redo now everything, because I didn't produce a debayered greyscale image as registration reference and the result from the process yesterday is not that what I was expecting  .

View questions:
My output image is now turned button to top. Is this related to the Up-Bottom FITS checkbox?
In the tutorial here we overwrite the file extention settings to raw, to use the raw settings we set up in the preferences. Is this also considered by the script?
Thanks,
Tobias

6

Tutorials and Processing Examples / Re: DSLR_RAW Workflow PI 1.6.x - 1.7.x - incl, image calibration

« on: 2012 May 06 08:39:43 »

I just add all my darks into the script? I thougt I will have to first generate the master dark and put it then into the script. I will try this out today. I have no flats since we used a 14" LX200 and have no flatter for this size of telescope.
Thanks,
Tobias

7

Tutorials and Processing Examples / Re: DSLR_RAW Workflow PI 1.6.x - 1.7.x - incl, image calibration

« on: 2012 May 05 08:43:38 »

I have a question about the workflow for my images of the trapez of M42. How shall I proceed if I only have 100 darks and my 95 lights (after manual sorting - could be more, I have to recheck the outsorted ones). So there are no bias image available. To aquire some is not possible, since the DSLR wich was used to aquire the images was not mine. My question is just, how is the best way to proceed with the images I got. I already worked on an image without the usage of a master dark at all (using the video tutorial from Harry, which did not discuss this stuff). I attach it to this post (This was my first run with PI and I'm still new to this stuff  ).

8

New Scripts and Modules / Re: PCL: Blink module

« on: 2012 May 01 15:06:20 »

Hello,

I just tried to test the Blink module with ~300 Canon CR2 raw files. On the harddisk they consume about 2,6 GB. PI ran during the loading process out of memory. I have 8 GB installed in my machine (Win 7 64bit). Is the problem, that they are still Canon raws? Would it be better to first register the images and blink them afterwards (I think so due to the fact that they are easier to compare then)? How do the other users integrate the blink tool in there workflow?

Thanks,
Tobias