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merge eclipse images without warping/ rescaling and/or rescale tosame size?
Took a series of lunar eclipse images, but since my FOV was too large
for a single capture, I imaged the top and bottom moon halves with my DSLR with the hope of merging them later. Problem is that the merging program is rescaling/ warping the images in order to merge so that my goal of creating an animation is not met. I am using Autopano Giga. Is there a way to merge without warping and keeping all images and moon the same size with this program? If not, is there a program that will do it? I'm looking at merging 400 images so I end up with 200 merged lunar images. thanks |
#2
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merge eclipse images without warping/ rescaling and/or rescale to same size?
On Mon, 5 Oct 2015 11:22:27 -0400, Sam Seagate
wrote: Took a series of lunar eclipse images, but since my FOV was too large for a single capture, I imaged the top and bottom moon halves with my DSLR with the hope of merging them later. Problem is that the merging program is rescaling/ warping the images in order to merge so that my goal of creating an animation is not met. I am using Autopano Giga. Is there a way to merge without warping and keeping all images and moon the same size with this program? If not, is there a program that will do it? I'm looking at merging 400 images so I end up with 200 merged lunar images. thanks I assume you mean that your FOV was too _small_? So you took 200 image pairs, capturing the top and bottom of the Moon? Assuming your framing is nearly constant, I'd also expect the warping to be constant. But I'm not familiar with the program you're using. Most programs designed for stitching images together have settings that let you control the algorithm used, or the stitching parameters. Otherwise, have you tried simply stacking the pairs in something like Photoshop, without any warpage at all? Depending on your lens, that might work pretty well. I've been using Microsoft ICE lately for terrestrial panoramas. It works extremely well and has lots of control over the settings. Not sure how it would do with image pairs of the Moon, but it's a free program so you might want to give it a try. |
#3
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merge eclipse images without warping/ rescaling and/or rescale tosame size?
On 10/05/2015 11:45 AM, Chris L Peterson wrote:
On Mon, 5 Oct 2015 11:22:27 -0400, Sam Seagate wrote: Took a series of lunar eclipse images, but since my FOV was too large for a single capture, I imaged the top and bottom moon halves with my DSLR with the hope of merging them later. Problem is that the merging program is rescaling/ warping the images in order to merge so that my goal of creating an animation is not met. I am using Autopano Giga. Is there a way to merge without warping and keeping all images and moon the same size with this program? If not, is there a program that will do it? I'm looking at merging 400 images so I end up with 200 merged lunar images. thanks I assume you mean that your FOV was too _small_? So you took 200 image pairs, capturing the top and bottom of the Moon? Assuming your framing is nearly constant, I'd also expect the warping to be constant. But I'm not familiar with the program you're using. Most programs designed for stitching images together have settings that let you control the algorithm used, or the stitching parameters. Otherwise, have you tried simply stacking the pairs in something like Photoshop, without any warpage at all? Depending on your lens, that might work pretty well. I've been using Microsoft ICE lately for terrestrial panoramas. It works extremely well and has lots of control over the settings. Not sure how it would do with image pairs of the Moon, but it's a free program so you might want to give it a try. Thanks, Chris, and I stand corrected as the FOV was too small! Yes, 200 top and bottom moon parts. I had to do this manually, so no tracking or positioning other than by hand so moon segments captured vary frame by frame. After using Autopano, I did load the merged images into Photoshop CC as a stack with attempted alignment. To my surprise, Photoshop did actually attempt to make all the images the same size but I still had a lot of difficulties. I even made up an action to select an area to make a selection mask over transparency for each image, but there were still quite a few lunar images that weren't resized/ positioned correctly. So my new goal was to try and do new mergers where the images weren't warped in any way. Sam |
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