Astroart Forum

Hi Fabio.
I was hoping for some solution with stretch without clip.
I already use starnet for narrowband nebula and merge the stars from broadband.
Thank you.

Hi' How can i prevent star from bloat. If I have a stack in a 16bit fits with stars up to 55-60000 they become greater than 16 bit after a DDP. When saved to 16bit most of the stars are 65535. The only way I know to do this, is by carefull curve raising. ( not so good ) Or using "Normalised Tone Str...

Ohh, the function should be named "lumen"
My mentor describes it as the xy gives level of one pixel. ADU return all light from the star.
Thank you.

Hi
By using the Image.Stars.Find(n) I seek the ADU.
If I use .stars.adu(i) it returns a huge number. Maybe 32bit. Otherwise using pixel x, y function i get the 16bit value.
The image is 16bit.
Am I doing something wrong here, or is there an logic explanation.
Regards Morten

Great info Fabio.
I will inspect the Asiair fits for ROWORDER bottom up.
If needed I could insert the code by a macro.

When show a flat frame in Asiair I see a little artifact from the sensor. It's show up in the upper right corner at the sub frame. When I open the fits in AA8 the artifact are now in the lower right corner of the picture. Why is that? . Asiair nor AA8 know how the picture was taken. Mount turned off...

Oh, that's help me a lot Fabio.
I start all over

I just found I have to Use selection nr. 2
Nr. 1=49% , 2=50% , 3=1%, 4=0%
But I read nr. 2 as GBRG and the camera should be RGGB ?
No problem as I getting a color pic. now.

Thank You Fabio
I will take som daytime pic. for debayring mode.
The flats don't need debayering, thats new to me.
Is that the same for the other calibration Frames, if I load the in the right slot. ??

Have a nice day. Morten Lerager

Hi' Just trying making flats with my new camera asi294mc. The Bayer Pattern should be RGGB when I try a debayering whith the first 2 option the result is "gray ish'". The larst two give a red-ish' one. As you can see when I select RGGB the preview look's gray-ish' But after debayring I get the resul...

Thank you Fabio
Now I can keep on trying making dual band osc picture.

Thank's Fabio I don't get it I'm afraid. Sure I don't want to change color in the Mask. But the Mask is for edit a color pic. The command color curve works fine with a Mask on it. "the Histogram Stretch is needed anyway because the "mask image" must have exactly a 16 bit dynamic" Don't understand wh...

Jep, It's convert automatic RGB to a Luminans so it's easy to use it as a mask. I have found the command I was looking for.. With a color image > color > Luminance. I can use most of the color command with mask. But not the white balance.. Not that I need it, but where to find what is mask sensitive...