Film look ? Grade or grain

[cjwolff]

What exactly does that picture mean cj?

That, my good chap, was an iconic representation of my real-time reaction to the quoted text, similar to my typical reaction to a Scarlet thread. (below)

http://image20.webshots.com/21/5/29/38/232252938eRXHoX_fs.jpg

:beer:

 

[Rakesh Jacob]

Thnk you sir

 

[mattsand]

Grain is a defect. Why would anyone add it to a clean video is beyond me.

it's called dithering, one of the most common and useful signal processing schemes there are. it's used to mask quantization noise and aliasing, to improve perceptual dynamic range, among other things. with all due respect the most common reason for something to be beyond someone is that they lack knowledge, not that the thing itself is far fetched.

 

[mattsand]

Whoa, this is the first time someone explained practical reasons for grain besides shouting that this is how movies must look

i'm glad you're happy, but i actually wrote exactly the same thing on the first page of this thread, before you made your original comment. sometimes when you think you hear something for the first time it's because you weren't paying attention earlier.

 

[Ian-T]

By the way, what Matt said about dithering is the same technique that's also used for digital audio. FYI