Canon 7d Video Noise Removal

I shot this video because I wanted to capture a strange phenomenon that I had never seen before.
It was a cold evening with no wind and microscopic crystalline snow was falling.
Our neighborhood streetlights were shooting spires of light upward as if they were concert spotlights.
15 minutes after shooting the video.. the spires of light were gone. The snow appeared more moist and less crystalline.

I was disappointed with my 7d video in low light. There was a lot of color noise which was very distracting, so I tried several solutions to remove it.

The video compression of the embedded video makes it hard to really appreciate the difference of the before and after.
If you really want to see the difference, then download this 38MB wmv video clip…

Download spire.wmv (to download use right click, save link)

There are 2 popular tools for removing video noise.

1. magic bullet denoiser
2. neat video

I tried the demos for both.  Magic Bullet Denoiser and Neat Video Home version both did a poor job of noise removal in my opinion.
The Pro version of Neat Video did a nice job of noise removal, but costs $100.

I didn’t want to spend $100 for Neat Video Pro, so I devised a solution that gave me results just as good, plus a few added features.
The only downside is that is requires extra time and effort.

First I used Sony Vegas to generate individual tif images for the frames of my video.
Then I used lightroom3 noise reduction to remove the noise on all of the images.
Finally I used Sony Vegas to convert the images back into a video.

Comments

  1. David Brown
    January 2nd, 2012 at 22:10 | #1

    Nice technique. I believe another way to convert to and from images to video is ffmpeg. Have you ever used ffmpeg?

  2. January 2nd, 2012 at 23:22 | #2

    I haven’t tried ffmpeg for that.

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