Author Topic: MUlti Shot Image Capture script  (Read 300 times)

garry23

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MUlti Shot Image Capture script
« on: January 11, 2021, 02:36:53 PM »
Some may be interested in my latest post: https://photography.grayheron.net/2021/01/welcome-to-2021.html

This 'new' MUSIC script is aimed at those interested in noise reduction or super resolution bracketing.

As usual I welcome any feedback on the script.

Kharak

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Re: MUlti Shot Image Capture script
« Reply #1 on: January 11, 2021, 09:16:27 PM »
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Focus jiggling is a non proven way to do super resolution and based on the 'assumption' that moving the lens focus between images may (sic) create small image to image movements at the sensor pixel level, eg a few microns. As I say, this remains unproven. However, if you can't carry out 'normal', handheld super resolution bracketing, eg because of shutter speed, then focus jiggling may introduction enough image to image jitter to allow you to carry your super resolution processing. If it doesn't, at least you will be able to reduce the noise in your image, ie by sq.root(n); where n is the number of images taken

I think this sounds very interesting, but I am not getting my head around this "jiggling", to me, it's a guy gently kicking his tripod. Not sure if I am understanding this right, but do you shake the camera a little? As in artificially creating a Pixel-Shift image?

Can you link me to some article explaining this practice?
once you go raw you never go back

garry23

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Re: MUlti Shot Image Capture script
« Reply #2 on: January 11, 2021, 10:15:37 PM »
@Kharak

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Can you link me to some article explaining this practice?

No  :)

As I just thought it up. As I say, it may not work.

The jiggle is simply moving the lens from the point of focus to another point, and back again; ie the image is always taken at the same point of focus. I was hoping that engineering tolerances and mechanical imperfections in the lens MAY shift the image relative to the sensor each time.

The first approach, if you can, is to use handholding to achieve SR bracketing, which will guarantee image to image pixel shifts.

garry23

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Re: MUlti Shot Image Capture script
« Reply #3 on: Yesterday at 03:56:26 PM »
MUSIC now covers people removal and ND simulation :-)

https://photography.grayheron.net/2021/01/music-additional-notes.html

ArcziPL

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Re: MUlti Shot Image Capture script
« Reply #4 on: Yesterday at 11:04:20 PM »
Cool, you do really nice stuff. Thanks for sharing it! I'm also impressed by the power of LUA implementation in ML. Amazing.
M50.110 [main cam] | M.202 [pocket cam] | 70D.112 [gathers dust] | waiting for M5II

garry23

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Re: MUlti Shot Image Capture script
« Reply #5 on: Yesterday at 11:13:57 PM »
@ArcziPL

Thanks for the feedback.

Hopefully you will try DOFIS and MUSIC out and they will help you with your captures.

Cheers

Garry