Questions tagged [image-stacking]

the process of combining multiple exposures to increase sharpness, reduce noise or for special effects, e.g. star trails

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8
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3answers
730 views

Will stacking more images produce more detail in this galaxy photo?

I've just started doing a bit of astrophotography and finally after the third night of trying I found my target, the Whirlpool galaxy. I'm pleased I've managed to capture it but I'm looking into how I ...
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5answers
3k views

What is the advantage of carrying a tripod and ND-filters when you could use image stacking instead?

From my understanding, if you want to take a long exposure of a landscape shot like the picture below, you have two options: Carry a heavy tripod everywhere you hike and then use a series of ...
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2answers
119 views

Is it possible to combine several manually taken photographs of a still presentation slide into an image of a better quality?

I often go to presentations and take photos of slides. Sometimes I sit too far, and photos come out blurred or noisy. It is known that if to take N photographs of the same object from exactly the ...
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1answer
215 views

Why are my stacked RAW images overexposed in DeepSkyStacker?

When I use Deepskystacker for stacking about 40 pictures (RAW) of a Galaxy (underexposed), I always get overexposed tif results. When I stack these pictures in Photoshop and use smart objects and ...
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3answers
372 views

How to exposure stack RAW photos while also outputting a raw photo?

So I have .DNG files that I have taken from an iPhone and I'm trying to figure out how to stack them and then output the stacked photo as a .DNG file as well (or any RAW format tbh). I know how to ...
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1answer
86 views

Exposure in Astrophotography [closed]

So, when taking a photo of the stars, I've generally taken photos at about ISO 3200, 20 seconds, f/3.5. I subsequently stack about 5 of them to get rid of the noise, which seems to work relatively ...
4
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4answers
2k views

Multiple copies of the same exposure, but randomizing the noise?

As a budding astrophotographer, I find my results are still largely hit or miss. Sometimes the standard procedure of stacking multiple exposures to randomize the noise and boost the signal works ...
6
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4answers
601 views

Sharpness stacking? [duplicate]

I have a 500mm f/8 mirror lens, which is super cheap and light, but which offers terrible resolving power (and a concomitant difficulty in nailing its manual focus). This 50% crop is pretty much as ...
4
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1answer
182 views

Why is my single test image much brighter than our Stackshot image output?

I'm working on taking stacked photos of small insect specimens for a university. I am using a Canon EOS 6D body camera. We are using a StackShot macro rail to image these specimens. An issue that has ...
0
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2answers
308 views

double image occuring

What's happening here with my dslr camera?
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1answer
71 views

Stacking Photos Process [duplicate]

How do I take multiple photos of an open area that has moving people in it and eliminate them through a photo stacking process? Thanks
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1answer
647 views

Hugin panorama stitching: how to set control points with exposure stacks

When I stitch a panorama with Hugin from exposure stacks, should I create control points for each exposure or only for one exposure per stack?
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1answer
216 views

Why is DeepSkyStacker output resolution off?

I am using DeepSkyStacker version 3.3.2 to stack 20 light frames of some stars. The registration and stacking goes off without a hitch, but the resulting image resolution has drastically changed. The ...
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4answers
1k views

How can I avoid star trails? [duplicate]

When shooting deep sky objects such as Andromeda or the Orion nebula, I find that I'm between a rock and a hard place. I can get passable results by running 3600 ISO and four second exposure. Any ...
3
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3answers
336 views

Automatic identification of lucky images for landscape photography

I recently did a trial run for a project to photograph a certain rock climbing area from a variety of directions. I took shots at a couple of different times of day from the same spot, tried different ...
5
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3answers
10k views

Are there image stacking (astrophotography) options on MacOS that don't involve running a Windows VM?

I am starting in astrophotography. I want to create a "non star trail/track" result similar to what you would get with software like Deep Star Stacker in Windows, but I use MacOS. Do I have any ...
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3answers
821 views

Image Stacking for noise reduction using MATLAB [closed]

I'm new to Image processing and started using MATLAB for Astrophotography processing. I'm trying to process 10 corrupted images (Same Image but mixed with different noise) of Planet Saturn using ...
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2answers
387 views

Image Stacking for macrophotography

I'm planning to buy an image stacking software for macro photography. I have been trying to figure out the appropriate software to stack images if the photos are clicked handheld. I understand that ...
0
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2answers
710 views

How to know the resulting iso of stacked images?

I've read in several questions like this one that stacking photos helps to reduce the noise of the resulting image, which is really helpful in astrophotography. My question is if I can know a priori ...
2
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4answers
1k views

How do I sum images?

I have a number of photos. I want to add these images togther pixel-wise (not mean or median). I have Imagemagick installed, and I tried: composite -compose plus IMG* ~/Desktop/sum.png But the ...
4
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1answer
354 views

Can I change the color only of the bokeh in Photoshop?

Say I capture two photos of the same object. The second one with a light pointed towards the camera but away from the lens's optical path so the light creates bokeh. And in Ps, I want to stack these ...
2
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1answer
180 views

Why is my frame stacked image showing a grid?

The following is an auto-equalised image of 200,000 stacked frames from a small web camera. All the frames are of a very dark grey uniform background, and the histogram mode is about -1.5 stops below ...
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1answer
86 views

Stacking Photos

I have series of Photos regarding the Clock. There are 12 Images Every image is a distinguished by Second "hand" on hour number like.. Time is 12.00 Second "hand" is on 1 .. 2..3..4.. .. 12 In this ...
6
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2answers
894 views

Why does DeepSkyStacker output a “glitch” image with just vertical lines

Yesterday I've got my new tracker (iOptron SkyTracker), and took about 30 shots of the Orion Nebula (with my Canon EOS 6D and 70-200mm f/2.8 lens at 200mm, f/4, 6s exposure of each frame) and got home....
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1answer
729 views

Combining “long-exposure” photo stack with HDR in Photoshop and Google Nik Collection

NB: I do not own an ND filter kit. I have taken 20 photographs that I can stack using "mean" to create a long-exposure effect for the water. I have also taken 5 bracketed shots at 1 stop apart to ...
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1answer
910 views

Photoshop stuck at Align Selected Layers Based On Content

I am trying to align a group of astro stacks (about 100 shots, masked) and Photoshop is stuck at: The progress bar did move to this point in less than a minute, and has been stuck at this exact point ...
6
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1answer
460 views

Why am I getting a repeating square pattern on my image stack?

I am stacking a still scene I took with my Canon EOS 6D in Photoshop to reduce noise. I've opened up raw files and stacked them with a smart object/median filter. However I've noticed something odd at ...
2
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1answer
736 views

Why are my images from my Canon EOS 6D randomly rotated 90 degrees

I've shot a photo stack of tens of photos today using a steady tripod. However, in my results, some of my photos are randomly rotated incorrectly. It's both in camera and in Bridge and anywhere else. ...
4
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1answer
940 views

Why does DeepSkyStacker brighten the stars too much compared to Photoshop?

I've got a 100-ish image stack of the milky way. I always use Photoshop's stacking but sometimes it fails aligning the images or it requires too much swap space (~80GB range) on my primary drive which ...
4
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4answers
6k views

Possible to do median image merge in Photoshop CS6 (NOT Extended)?

I attended a Kelby One workshop where he demonstrated the median combine method to blend multiple images and remove tourists, cars, etc. (i.e., anything that moved between shots). However, that ...
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2answers
4k views

How to Record Videos at Full Resolution with Nikon D750 for Astrophotography? [closed]

I am using Nikon D750 and I want to use it to record videos of planets/moon, so that I can later stack them into images. However, the camera wastes its potential by down-sampling the video recording ...
3
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3answers
3k views

Can I use a single RAW file with stacking to reduce noise?

Can I get the same results by copying a RAW (same exposure) file many times and stacking to reduce noise as I would if I used many separate exposures?
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1answer
254 views

If i use ISO 1600 to photograph stars will image stacking help reduce noise but also add more detail?

I would like to take better photos of the stars, especially the milky way, but my highest ISO setting is 1600. I have now learnt that image stacking can help reduce noise when taken with the same ...
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1answer
602 views

When stacking images to remove noise in astrophotography, should the exposure be the same in each?

I am trying to get to grips with astrophotography and have read about image stacking to help reduce noise. I am a little confused about whether the images to be stacked are all taken at the same ...
2
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1answer
939 views

What's an easy way to de-rotate astronomical images taken without an equatorial mount?

I don't have an equatorial mount nor I plan to buy one. However, I would like to stack my night sky photos. Is there a software that can easily de-rotate my images so I can stack them? By easily I ...
2
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2answers
146 views

Why does frame stacking alter colours?

I apologise in advance for the subject matter of my photos. I've not tidied the table for a few days. I needed indoor artificial lighting for the long duration of this experiment. Both images are ...
2
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1answer
165 views

Combining multiple shots from a burst for noise reduction, when the subject moves slightly?

Is there a tool to use to combine a burst of exposures (to eliminate noise; all are same exposure) when the subject moves slightly and only in places? For example, you would not notice they are not ...
3
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2answers
1k views

How do I stack two photos in Photoshop to reduce noise?

I tried stacking two pictures in Photoshop to create a final image with less noise. But I ended up with a pic that had more. Is there any other way to stack two pictures so that there is less noise? ...
1
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1answer
369 views

median stack mode is blurring my stars

i am trying to reduce noise with median stack filter but all the stars are smeared/blurred. Gear nikon D7100, Samyang 10mm, tripod, PS CC
8
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1answer
2k views

Stack of 4 seconds exposure photos of Milky Way, how is it done?

I'm looking at this photo in http://www.astrobin.com/17455/ In the description the author specifies: 100 x 4 second exposures at f5 and ISO12800, Canon 5DmkIII + 24-105f4L@105mm No tracking, just on ...
0
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1answer
176 views

How to get consistent white balance on a 3 photo stack?

I have a 3-photo stack - the same photo done with -2, 0, +2 EV, and want the same white balance on each of the photos. Photos will be used to construct a 360 degree panorama, 4x3 photos stack = 12 ...
2
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1answer
3k views

Should I turn off in-camera long exposure noise reduction when shooting for image stacking?

I have never shot with intervalmeter for the purposes of image stacking but want to at least try. I am going to try star trails but my question is this: Should I turn off in-camera long exposure ...
0
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6answers
2k views

Can 30 1-second exposures be combined to a form the equivalent of a single 30s exposure?

I need to take 30 1s exposure shots in raw at night. The image becomes ALMOST black... Is it possible to take this tiny amount of light/information and sum them all toghether and get as a result a ...
9
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5answers
14k views

Linux software for stacking and RAW processing

I'm starting with astrophotography and my DSLR produces CR2 raw images. I use Linux and want to stack series of shots and do RAW processing (curves, RGB balance, etc.) I googled and found software ...
2
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2answers
1k views

How to stack photos manually?

I want to stack x number of photos to incrase the exposure of the final image. But I need to do it manually, I mean, using Photoshop but without using wizards. My approach would be using a layer for ...
0
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1answer
646 views

Stacking photos for moon movement [duplicate]

I took many pictures of the lunar eclipse from last week with a stationary camera and now I want to merge them so I get something like http://wordlesstech.com/2011/06/26/eclipse-over-the-acropolis/. ...
34
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4answers
17k views

Why am I unable to capture as many stars as I can see with my eyes with my new DSLR?

I have recently been given a Nikon D7000 as a gift. I have been trying to take pictures of stars on very clear nights. However, I am unable to make the camera capture many of the stars. My eyes seem ...
16
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3answers
2k views

What causes and how can I avoid this moiré pattern in a composite night sky photograph?

I'm new to taking star trails, and fairly new to photography in general. After my first attempt at taking a star trail, I composited them in Photoshop and when I merged the layers I got this pattern ...
4
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3answers
4k views

Does median blending / image stacking result in better or worse results than a long exposure?

For night photography, do long exposures work better or worse than taking a few photos and merging them in software (median blending / image stacking, like the excellent iOS app Cortex Camera)? You ...
0
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2answers
173 views

Image stacking with different camera settings

I'd like to be able to stack multiple images to reduce noise. In the past, I've followed the approach found at Cambridge in Colour: averaging images. Simply put, I bring all of the images into ...