How to remove grain in video

[skorpinok]

Hi, i Converted a dvd movie INCEPTION to x264.mkv (Constant quality) using handbrake but i noticed a lot of grain in video, as the source video itself is bit grainy, is there any way to remove this grain 7 improve the video quality ? i ripped this new dvd using dvd fab decrypter. please suggest me if u got any idea, thanks in advance.

skorpinok

[hech54]

Obviously the bitrate was set too low....just re-rip the DVD/Blu Ray and convert again.

[poisondeathray]

Obviously the bitrate was set too low....just re-rip the DVD/Blu Ray and convert again.

What ? He said the source was grainy . A higher bitrate will help preserve the grain

the source video itself is bit grainy

Filter it with degraining filters before encoding. Not sure if handbrake has any built in , but there are dozens in avisynth to choose from

[Bjs]

You may find this link helpful in explaining the use of common filters in vdub for noise reduction ... avidemux as well

[hech54]

Obviously the bitrate was set too low....just re-rip the DVD/Blu Ray and convert again.

What ? He said the source was grainy . A higher bitrate will help preserve the grain

Then he should return the defective DVD or Blu Ray and get his money back. HTF can the original DVD or Blu Ray be grainy?

[poisondeathray]

Obviously the bitrate was set too low....just re-rip the DVD/Blu Ray and convert again.

What ? He said the source was grainy . A higher bitrate will help preserve the grain

Then he should return the defective DVD or Blu Ray and get his money back. HTF can the original DVD or Blu Ray be grainy?

You're joking right ? You've been a member here how long ?

Film grain. In fact, Hollywood often adds extra grain in post production. Let's not get into the subjective argument as to whether or not grain looks better - but just know it's often the director's decision to add it

[bacardi/avt]

Obviously the bitrate was set too low....just re-rip the DVD/Blu Ray and convert again.

What ? He said the source was grainy . A higher bitrate will help preserve the grain

Then he should return the defective DVD or Blu Ray and get his money back. HTF can the original DVD or Blu Ray be grainy?

Maybe the film grain is comes from the actual film (might be larger silver particles or something, probably done because it is what the director envisioned the look of the film being when making the film).

OOPS...a bit late

[hech54]

Let's not get into the subjective argument as to whether or not grain looks better - but just know it's often the director's decision to add it

Now you're joking right?
Even the trailers for Inception on YouTube don't look grainy. There MUST be another reason.

[poisondeathray]

Let's not get into the subjective argument as to whether or not grain looks better - but just know it's often the director's decision to add it

Now you're joking right?
Even the trailers for Inception on YouTube don't look grainy. There MUST be another reason.

You've reached this conclusion based on a youtube trailer ?

I hope you realize youtube re-encodes everything at a low bitrate. Even if you wanted to keep grain, you couldn't.

Now I haven't seen the Inception blu-ray . Maybe it is grainy or maybe it isn't. Maybe something is exceptionally wrong with skorpinok's copy, or maybe it's just normal.

[hech54]

Maybe something is exceptionally wrong with skorpinok's copy

I think you hit the nail on the head with that one.

[classfour]

Yeah, like it may be a download - not a rip.

[intracube]

Now you're joking right?
Even the trailers for Inception on YouTube don't look grainy. There MUST be another reason.

It's likely that noise reduction and/or low bitrate have removed the grain from the YouTube version. Can you post a link to the YouTube trailer you're looking at?

Virtually all films have noise/film grain to some degree. I'd much rather have a DVD/Bluray disc with film grain, rather than have excessive noise reduction applied - which usually affects fine detail and textures.

I've got an Inception trailer that's ~9Mbit/s - and it has quite noticeable grain on a number of shots.

[hech54]

Can you post a link to the YouTube trailer you're looking at?
I've got an Inception trailer that's ~9Mbit/s - and it has quite noticeable grain on a number of shots.

Absolutely unnecessary....see classfour's post.

[intracube]

Can you post a link to the YouTube trailer you're looking at?
I've got an Inception trailer that's ~9Mbit/s - and it has quite noticeable grain on a number of shots.

Absolutely unnecessary....see classfour's post.

I don't follow. classfour seems to be suggesting that the original video might be a poorly converted download rather than a bit-for-bit rip of the original DVD. In most cases a badly converted video will loose grain rather than add it.

The YouTube versions I've seen are a lower quality with visible macroblocking (set the resolution to 720p):
http://www.youtube.com/watch?v=66TuSJo4dZM
This higher bitrate version shows grain in some shots, particularly behind Michael Caine at 32 seconds (167MB download):
http://playlist.yahoo.com/makeplaylist.dll?sid=107193280&sdm=web&pt=rd
This might be explained by the different film formats used in the film (35mm anamorphic, 65mm and VistaVision) and possibly the use of higher speed (ISO) film stock for certain scenes.

[skorpinok]

I tried with new DVD, also tried with other inception Dvd's the grain is present all over the film especially in dark scenes & low lightning conditions, also tried with stax rip using 2 pass encoding(x264 film medium), its all the same result just like handbrake ouput nothing change, i think this is christhoper nolans grainy inception, while his dark knight i encoded using same tools is fantastic.. Dream within a Dream

[intracube]

I tried with new DVD, also tried with other inception Dvd's the grain is present all over the film especially in dark scenes & low lightning conditions

Could you post an image from the DVD as an example of the grain?

Although I can see grain on some shots from the trailer, it's quite subtle. Applying noise reduction might actually reduce the quality by removing detail, so I personally wouldn't use it here.

Have you tried Bjs' suggestion (VirtualDub)?

[hech54]

I tried with new DVD, also tried with other inception Dvd's

OF COURSE you did. How many did you buy at one time?

[jagabo]

the grain is present all over the film especially in dark scenes & low lightning conditions

Because fast film is grainy. Grain is your friend. Learn to live with it.

[skorpinok]

applying noise reduction using Denoise ('Weak') in handbrake will spoil my encoded picture quality? is it ok accept noise & grain in movie as natural? i think if the first attempt fails then later one is acceptable

[jagabo]

applying noise reduction using Denoise ('Weak') in handbrake will spoil my encoded picture quality?

It depends on how much grain you have. If there's a lot of grain a "weak" noise reduction won't do much. "Strong" noise reduction will remove small details as well as noise. Heavy noise reduction will also lead to posterization artifacts.

is it ok accept noise & grain in movie as natural?

Of course. Have you ever seen a movie in the theater? They're full of grain.