Topic: Getting rid of Artifacts/Grain

I posted a topic similar to this last summer, but as of yet, I have not found a solid solution to getting rid of film grain with my c920 using iStopmotion. I thought maybe if I pointed out some specific examples of where I get film grain/artifacts/noise, I could get some better feedback, but we'll see. So here are four pictures with arrows just to make sure you guys know what I'm talking about. I'm mostly just annoyed about how the artifacts/grain/noise completely eat up every little dark spot in my image, and that's no good, since I have quite a few films I want to do that involve a number of low-lit/night scenes.

https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-xpa1/v/t1.0-9/10922562_582069638603951_1943715336931112061_n.jpg?oh=bce86d8faee2d1f5738be73756653235&oe=552A3F54&__gda__=1432887532_8af280888fe5ae6488a4ac8c3e092693

https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-xap1/v/t1.0-9/10896838_582069621937286_1284401274786060797_n.jpg?oh=13d568bb742e1bf66e136402142d7466&oe=556EC2FF&__gda__=1429684771_41d76bb1daa4468ad2d79dd7350e7ebf

https://scontent-b.xx.fbcdn.net/hphotos-xaf1/v/t1.0-9/1484713_582069601937288_1150865968473120458_n.jpg?oh=52fa978a3f1d1c9f6218f92417a1a683&oe=5528DAC9

https://scontent-a.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/10463892_582069648603950_1067867795673205520_n.jpg?oh=477ea551362472762cd90ade629cb783&oe=552EB0AF
(I forgot to point out the soldier's hair, but I think you guys get what I'm talking about anyways)

Maybe I'm just being too nitpicky, I don't know. Though, I'd honestly be so much more motivated to make brickfilms if I could just have a clear, clean image to work with. It doesn't necessarily have to be super crisp and stuff, but the artifacts and grain are just completely degrading to every one of my films. If any of you guys have any suggestions as to how to export (again, I'm using istopmotion) clips, or another sort of solution, that'd be much appreciated. I just need something new, something that potentially works. I don't have the finances to upgrade to a D-SLR yet, so I'd like to be able to utilize what I have right now and make some good films, not a bunch of mediocre crap.

If any clarification is needed, please let me know. Please don't feel pressured to mouth feed me every solution you can find until I find something that works, I don't want that to happen. Thanks.

-Grant

Last edited by GHB (January 10, 2015 (12:20pm))

Re: Getting rid of Artifacts/Grain

You could get a camera with better low light performance, or maybe try using more light while filming. Consider doubling the amount of light you are using, but really I would just stop worries about it, the JPEG compression you used on those images looks 10x worse then the noise.

Re: Getting rid of Artifacts/Grain

The manner in which you've compressed these images for web makes it pretty impossible to see any grain that your arrows might be pointing to.

There are de-noising filters that can get rid of subtle noise effectively. Neat Video is incredible, although it isn't especially cheap.

http://i.imgur.com/wcmcdmf.png

Re: Getting rid of Artifacts/Grain

I can see the noise only because I've been looking at it in my current project for the last 4 weeks.  I have about 2 minutes of dark scene - as in - the entire backdrop is black and the noise is terrible.  I'm hoping to fix it in post-production somehow.

My understanding is the sensor-chip-thingy in your webcam simply doesn't understand dark is dark and instead tries to compensate.  I think this is one occasion our DSLR comrades have one over us.

Aka Fox
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