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Topics - nickg

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General / PI system process does not close after exit
« on: 2017 August 24 08:13:09 »
Since the update, I'm having trouble when closing and re-opening PI. It appears the Pixinsight.exe system process remains active in the background and when I click the PI icon again, nothing happens. To re-launch it successfully I need to kill it in task manager first. Has anyone else seen this? Not a major issue but it would be nice if it got resolved. My platform is Win7-x64.

Thanks,
Nick

2
General / Masked stretch creates halos on combined image
« on: 2016 March 28 17:41:45 »
I am trying to reduce star size and have ran into a road block. The imaging FL is 1800mm f/9 which produces some fairly large stars if left unchecked. I came across the masked stretch method, where the masked stretch image is combined with the high-contrast one using pixel math. The problem is I am getting halos, no matter what setting I use on the mask. I like the smaller stars also because they are not as saturated, and color is enhanced. Any way to cure this? Completely stumped at this point :(  I have attached example previews, one is with masked stretch and the other one without.

Thanks,
Nick

3
General / Floating point FIT not displaying correctly
« on: 2015 July 23 16:36:53 »

My workflow involves saving the stack as a 32-bit float FIT in CCDstack and importing it in PI. Sometimes it will display correctly using the default settings in STF, and others the white point is clipped and the image appears over exposed. In fact it seems no matter what adjustment I make in the STF makes no difference in the image looking normal. Saving it as a 16-bit TIFF seems to work every time. Any ideas?

Thanks,

Nick

4
General / Comet alignment and AVI creation
« on: 2014 September 09 07:21:05 »
I have some raw DSLR data of comet Jacques I obtained at the end of last month. I am pretty new to comet processing and this part of PI. I tried the comet alignment module, but when I load the calibrated FITS, none of the dx,dy columns get populated. Also, what does the module exactly do? Does it align on the stars, or the comet? The DSLR data were calibrated in PI as well. Sorry if I'm asking very basic questions but I am new to comet processing.

Thanks,
Nick

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