Linear conversion in DPP

[LT]

Belows are two attempts on doing color balance. One was format converted from RAW into Tiff in DPP (Digital Photo Professional) and then doing color balance in PS. Another was a stack with darks calibrated in PI. Then did the color calibration using PCC tool in PI after DBE. Finally used HistogramTransformation for brightness adjustment and slightly contrast and color adjustment in PS.

Which one, A or B, would you like to pick?

Taken with Vixen ED81SII + SD reducer kit HD + 100Da in Taiwan in 2017 @495mm F6.1
Exposure of each light frame = 240s @iso1600
Autoguided with Vixen AP mount


A.

FB_M8_A.jpg (1.33 MiB) 已瀏覽 840 次

B.

FB_M8_B.jpg (1.2 MiB) 已瀏覽 840 次

[Eddy So]

[LT]

Try another version using PCC tool @G2V stars. Does it look a little bit better or anything wrong to your eyes?

FB_light_DBE_G2V_PS.jpg (1.24 MiB) 已瀏覽 784 次

[Eddy So]

感覺好一點

[LT]

Does this version look alright? Reprocessed on a single frame without bias, dark and flat calibrated again.

Firstly, linear conversion into Tiff format in DPP.
Then DBE and PCC using G2V stars
Finally, HistrogramTransformation (HT) for adjusting the brightness
No saturation, noise reduction and manual adjustment on color calibration were applied throughout the processing

So, before applying HT, seems other steps were processed at linear stage. But the color of M8 is quite different with the stacked one above.

FB_IMG_6374_DBE_PCC_HT.jpg (1.04 MiB) 已瀏覽 703 次

[Eddy So]

感覺顏色上有點浮誇。