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Post #244435

Author
Laserschwert
Parent topic
Info Wanted: Anyone Planning on making Anamorphic versions using 2006 OUT DVDs?
Link to post in topic
https://originaltrilogy.com/post/id/244435/action/topic#244435
Date created
14-Sep-2006, 8:26 PM
Originally posted by: vbangle
Laserschwert, could you PLEASE make up even a crude/brief tutorial on how you did this? I know you commented on the programs you used but a brief
run down on the order and specifics with those programs would be helpful. I hope you agree....I look foward to your answer.

Well, it isn't that hard at all (if you know your way with AviSynth and VirtualDub). I guess NeatVideo (I've used the VirtualDub-version here, you can use the demo version) is the key.

NeatVideo is a video denoiser-plugin based on its predecessor NeatImage, a Photoshop-plugin to denoise still images. It works by sampling a noise pattern, so that the plugin knows, which form of noise should be removed. You can save this noise-profile along with the denoising-settings, and have NeatVideo use these as the default settings.

This is where AviSynth comes into play. Here's the script:

LoadVirtualDubPlugin("F:\VirtualDub\PLUGINS\NeatVideo.vdf","NeatVideo")

MPEGSource("sunset.mpg").crop(0,124,0,-126).ConvertToRGB32

NeatVideo

LancZos4Resize(900,600)
convertToYV12.LimitedSharpenFaster
LancZos4Resize(720,464)
AddBorders(0,56,0,56)

return last


Since AviSynth allows for VirtualDub-plugins to be loaded and used in the script, I do this with NeatVideo. The source is defined, and the black bars are cropped. Since VirtualDub-plugins require a color space format of RGB32 when used in AviSynth, the proper conversion is applied. After applying the filter (it uses the "defaults", as explained above), I upscale the image, a little larger than necessary, sharpen it with the LimitedSharpenFaster-function (which requires a color space conversion to YV12) and scale it down to the anamorphic PAL size (minus the black bars, which get added at the end). Scaling the image up before sharpening, and scaling it down afterwards helps removing some halos that occur through the sharpening.

That's basically it.