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stacker:docs:faqlist [2020/08/23 00:06] rjlittlefield My stack got shot out of order. What can I do? |
stacker:docs:faqlist [2020/08/28 21:52] rjlittlefield avoid edge streaks via "dust and defects mask" |
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| Edge streaks can also be caused by forcing a stack to be processed starting at the "wide" end, meaning whichever end of the stack has the widest field of view. In this case the streaks are likely to appear on all four edges, and may extend from the edge of the image to the edge of the narrowest field of view. With standard settings, Zerene Stacker automatically determines which is the narrow end of the stack and starts there, which completely prevents edge streaks with a well aligned stack. However, it can be forced to start at either end by de-selecting Options > Preferences > "Automatic order". Normally we recommend to leave "Automatic order" selected, and set things up when the stack is shot so that everything you care about is contained even within the narrowest frame. See the tutorial [[http://zerenesystems.com/cms/stacker/docs/tutorials/tutorial002#summaryuse_either_method_but_be_sure_to_check_framing|HERE]] for more information on that point. | Edge streaks can also be caused by forcing a stack to be processed starting at the "wide" end, meaning whichever end of the stack has the widest field of view. In this case the streaks are likely to appear on all four edges, and may extend from the edge of the image to the edge of the narrowest field of view. With standard settings, Zerene Stacker automatically determines which is the narrow end of the stack and starts there, which completely prevents edge streaks with a well aligned stack. However, it can be forced to start at either end by de-selecting Options > Preferences > "Automatic order". Normally we recommend to leave "Automatic order" selected, and set things up when the stack is shot so that everything you care about is contained even within the narrowest frame. See the tutorial [[http://zerenesystems.com/cms/stacker/docs/tutorials/tutorial002#summaryuse_either_method_but_be_sure_to_check_framing|HERE]] for more information on that point. | ||
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| + | In recent versions of Zerene Stacker, edge streaks can be avoided by checking the box at Options > Preferences > Preprocessing > "Use dust & defects mask", and also checking the box under that to "Avoid edge streaks". (For this use, you do not need to provide a dust & defects mask "from file".) However, while this option will prevent the introduction of streaks, that region of the result image may still be degraded if the subject has details that were never captured in sharp focus due to the shift in framing. It is better to avoid the shift in framing while the stack is being shot, if possible. | ||
| ===== My output images have worm trails! Why is that? ===== | ===== My output images have worm trails! Why is that? ===== | ||