Before reading, start downloading the 85mb output file to view it later -----> (1920x1080 24p Mpeg4)
I was testing the step removal from Lee and it worked splendidly, fantastic work
It was so good that I need to contribute too
The step removal project was finished by Matthew, another great work but his solution to overcome the D90 noise/artifacts is to downsample the image, apply instantHD and noise to moisture the banding
The problem with it is the clean/crisp parts of the image get noisy and instantHD can make the color banding even worse
Instead of downsampling and losing information, there is a software called Neat Video, an amazing algorithm developed for JPEG artifacts/noise removal in images that now works inter-frame in video
The process for the (almost) perfect picture:
Its a bit of rocket science; you'll need to set Neat Video first: shoot an uniform surface with the D90 and it must be NOT well lit (you need its noise now more than anything else). once this information is accepted by the program, it is ready to erase all of its patterns of noise and artifacts of the movie
I used the default settings and already had a noiseless image at the first trial. There are countless adjustments to be make in Neat Video... it needs research because I got some aliasing issues
Now that I had a noiseless image, I could finally use Instant HD to blow-up the image to 1920x1080 (instantHD only truly works with a noiseless imagery)
Just to be clear of how this process was:
1) Replaced the movie in the AE stair step removal template (matthew's version) and rendered it (lagarith codec) --always render, AE gets crazy with third-party plugins
2) Shot the uniform surface with noise and applied Neat Video (rendered it again)
3) Then, applied InstantHD:
created a new composition at 1920x1080 (square pixels) and the same on
InstantHD's custom size.
that's it.
Noiseless, artifactless, stepless and bandless.
I have some doubts that this process will work so well with the 5D because of the H.264 block-oriented compression; the D90 is intraframe MJPEG, its artifacts create a pattern easily recognized in each static frame. The H.264 interframe artifacts doesnt create a pattern, it changes accordingly with the motion of image captured. Probably Neat Video will blur the 5D more than a reconstruction of the lost information. But Neat Video would work like it does with D90 with any other intraframe codec in the market, film included
This D90 test was shot with a 40w home lamp (you can see it in the lens reflection) at 3200 ASA--I think it was-- at 2.8 aperture using Kholl's technique. Original untouched file directly from the memory card -----------> 34Mb
I shot this with a 15 years old 50mm nikkor manual macro lens (it has some fungus, the image has a soft light blurred all around)
The banding you see in the 85mb file is consequence of the compression and also it flats the darker areas, so I took some PNG shots of the 1080 final composite in AE CS3:
example #1
example #2
example #3
example #4
And it can be still improved with tweaks in Neat Video.
Noise is for the weak, like HDR photographs
------------------------------------------------------
SKIN TEST
I did it to see if Neat Video artifacts could make a 'plastic' skin, blur details or create strange aberrations.
Still didn't found an AE plugin to fix my face, so sorry about that
I put them side by side, noise vs without noise, on the exactly the same settings used above ------------> (720p Mp4 81Mb)
Also shot it with an well exposed face and then a low-light sub-exposed face
PNG example #1
PNG example #2 (low-light)
I also didn't test the inter-frame noise reduction yet on Neat Video; this is a second step, I think it could blur the image but I see that sometimes it may be needed (look at the background)
my hand at 1080p --------> 45Mb
quicktime is not very suitable to watch 1920x1080 mp4,
VLC or Media Classic are better
----------------------------------------
FLOWERS TEST
Soon
I was testing the step removal from Lee and it worked splendidly, fantastic work
It was so good that I need to contribute too
The step removal project was finished by Matthew, another great work but his solution to overcome the D90 noise/artifacts is to downsample the image, apply instantHD and noise to moisture the banding
The problem with it is the clean/crisp parts of the image get noisy and instantHD can make the color banding even worse
Instead of downsampling and losing information, there is a software called Neat Video, an amazing algorithm developed for JPEG artifacts/noise removal in images that now works inter-frame in video
The process for the (almost) perfect picture:
Its a bit of rocket science; you'll need to set Neat Video first: shoot an uniform surface with the D90 and it must be NOT well lit (you need its noise now more than anything else). once this information is accepted by the program, it is ready to erase all of its patterns of noise and artifacts of the movie
I used the default settings and already had a noiseless image at the first trial. There are countless adjustments to be make in Neat Video... it needs research because I got some aliasing issues
Now that I had a noiseless image, I could finally use Instant HD to blow-up the image to 1920x1080 (instantHD only truly works with a noiseless imagery)
Just to be clear of how this process was:
1) Replaced the movie in the AE stair step removal template (matthew's version) and rendered it (lagarith codec) --always render, AE gets crazy with third-party plugins
2) Shot the uniform surface with noise and applied Neat Video (rendered it again)
3) Then, applied InstantHD:
created a new composition at 1920x1080 (square pixels) and the same on
InstantHD's custom size.
that's it.
Noiseless, artifactless, stepless and bandless.
I have some doubts that this process will work so well with the 5D because of the H.264 block-oriented compression; the D90 is intraframe MJPEG, its artifacts create a pattern easily recognized in each static frame. The H.264 interframe artifacts doesnt create a pattern, it changes accordingly with the motion of image captured. Probably Neat Video will blur the 5D more than a reconstruction of the lost information. But Neat Video would work like it does with D90 with any other intraframe codec in the market, film included
This D90 test was shot with a 40w home lamp (you can see it in the lens reflection) at 3200 ASA--I think it was-- at 2.8 aperture using Kholl's technique. Original untouched file directly from the memory card -----------> 34Mb
I shot this with a 15 years old 50mm nikkor manual macro lens (it has some fungus, the image has a soft light blurred all around)
The banding you see in the 85mb file is consequence of the compression and also it flats the darker areas, so I took some PNG shots of the 1080 final composite in AE CS3:
example #1
example #2
example #3
example #4
And it can be still improved with tweaks in Neat Video.
Noise is for the weak, like HDR photographs
------------------------------------------------------
SKIN TEST
I did it to see if Neat Video artifacts could make a 'plastic' skin, blur details or create strange aberrations.
Still didn't found an AE plugin to fix my face, so sorry about that
I put them side by side, noise vs without noise, on the exactly the same settings used above ------------> (720p Mp4 81Mb)
Also shot it with an well exposed face and then a low-light sub-exposed face
PNG example #1
PNG example #2 (low-light)
I also didn't test the inter-frame noise reduction yet on Neat Video; this is a second step, I think it could blur the image but I see that sometimes it may be needed (look at the background)
my hand at 1080p --------> 45Mb
quicktime is not very suitable to watch 1920x1080 mp4,
VLC or Media Classic are better
----------------------------------------
FLOWERS TEST
Soon
Last edited:
