Sergei Golyshev (AFK during workdays)
Laboratorium Solaris: missing the Sun
...and my Flickr friedns :)
The Sun of 04.07.2015 @10:41:40 MSK.
This looping prom on the left looks like as it can erupt....
Many swifts' transits were detected, photos pending.
DMK23U274 via 2x on Coronado PST. 9 panels, 20% of 1000 frames stacked, calibrated with "flat-cap" flat. Deconvolved, stitched in MS ICE and wavelet sharpened. High-pass filtered, contrast adjusted and colorised.
Note: CLAHE algorithm were tested but found to produce nasty edge effects.
Note 2: I have made a "bag-flat-cap", which is a great little thing to create flat-field images with PST. The technique is the same as used for making whitelight film filter from doublesided sticky-tape and cardboard :)
Laboratorium Solaris: missing the Sun
...and my Flickr friedns :)
The Sun of 04.07.2015 @10:41:40 MSK.
This looping prom on the left looks like as it can erupt....
Many swifts' transits were detected, photos pending.
DMK23U274 via 2x on Coronado PST. 9 panels, 20% of 1000 frames stacked, calibrated with "flat-cap" flat. Deconvolved, stitched in MS ICE and wavelet sharpened. High-pass filtered, contrast adjusted and colorised.
Note: CLAHE algorithm were tested but found to produce nasty edge effects.
Note 2: I have made a "bag-flat-cap", which is a great little thing to create flat-field images with PST. The technique is the same as used for making whitelight film filter from doublesided sticky-tape and cardboard :)