Äîêóìåíò âçÿò èç êýøà ïîèñêîâîé ìàøèíû. Àäðåñ îðèãèíàëüíîãî äîêóìåíòà : http://www.astronomy.com/magazine/adam-block/2015/04/maximize-a-minimum-filter
Äàòà èçìåíåíèÿ: Unknown
Äàòà èíäåêñèðîâàíèÿ: Sun Apr 10 12:30:32 2016
Êîäèðîâêà: ISO8859-5

Ïîèñêîâûå ñëîâà: ï ï ï ï
Maximize a minimum filter | Astronomy.com
Tonight's Sky
Sun
ò??
ò??
Sun
Moon
ò??
ò??
Moon
ò??
ò??
Mercury
ò??
ò??
Mercury
ò??
Venus
ò??
ò??
Venus
ò??
Mars
ò??
ò??
Mars
ò??
Jupiter
ò??
ò??
Jupiter
ò??
Saturn
ò??
ò??
Saturn
ò??

Tonight's Sky ò?? Change location

OR

Searching...

Tonight's Sky ò?? Select location

Tonight's Sky ò?? Enter coordinates

ÒÀ '
ÒÀ '

Maximize a minimum filter

Astroimager Adam Block describes how to use a minimum filter to de-emphasize stars and dramatically enhance astronomical images.
RELATED TOPICS: ASTROIMAGING
AdamBlock_2013
Faint to medium-bright stars in an image can be a distraction, making it difficult to appreciate a nebula or galaxy. Using a minimum or erosion filter is a wonderful way to de-emphasize star-crowded fields and thereby dramatically enhance your image.

Astronomy magazine subscribers can read the full column for free. Just make sure you're registered with the website.

Already a subscriber? Register now!

Registration is FREE and takes only a few seconds to complete. If you are already registered on Astronomy.com, please log in below.
ADVERTISEMENT

FREE EMAIL NEWSLETTER

Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter.

ADVERTISEMENT
ADVERTISEMENT
asy_gravitational_eguide

Click here to receive a FREE e-Guide exclusively from Astronomy magazine.

Find us on Facebook