European PixInsight Conference 2014
By Vicent Peris and Carlos Milovic
October 31st – November 2nd 2014, Munich, Germany

Color Calibration of the Dark Nebula LDN673

This image has no good white reference because all the stars in the area have a strong warm color. Therefore, a set of short exposures of the nebulae complex and the face-on spiral galaxy were acquired to transfer the white calibration from the spiral galaxy to the master image of the nebula.

White reference image used to calibrate the LDN673 image (shown here without color calibration).

Image before color calibration.
Image after color calibration.