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DPChallenge Forums >> Challenge Suggestions >> Grain challenge
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 10/30/2011 10:22:47 PM · #1
Enter a photo in which added grain will enhance the look of the photo. I know theres been one before, can we have another one please !
 10/30/2011 10:39:05 PM · #2
Grain I
Grain II
Grain III
10/30/2011 10:58:42 PM · #3
jmritz
 10/31/2011 12:45:17 AM · #4
Great idea!!!!
 11/07/2011 12:57:47 AM · #5
Wow i just realised they made it a challenge. First one suggested ever and it came true, Now have to think of something worthwhile. Thanks Langdon.
 11/07/2011 01:12:26 PM · #6
How do folks typically "generate" the grain...is it in the actual photo using high ISO or do they achieve it in post? (or both)? Is there a preferred method?
 11/07/2011 01:18:01 PM · #7
Originally posted by gcoulson:
How do folks typically "generate" the grain...is it in the actual photo using high ISO or do they achieve it in post? (or both)? Is there a preferred method?


Personal preference for me is post process. That being said, I know a few people who like to do it in camera with a high ISO.
 11/07/2011 01:22:07 PM · #8
Gonna Silver Efex pro the bejeepers outta my image. :)
 11/07/2011 01:36:37 PM · #9
Originally posted by mbrutus2009:
Personal preference for me is post process. That being said, I know a few people who like to do it in camera with a high ISO.


Ditto. I want control of the grain, including the amount and the size (mean size and distribution) of the grain. Shooting at high ISO rarely generates really pleasing results (really depends on the camera), and locks you in to one result, rather than giving you options.
I really want to shoot for this challenge; we'll see if I get the chance to do so.
 11/07/2011 01:56:27 PM · #10
Originally posted by gcoulson:
How do folks typically "generate" the grain...

For some of us with lower-end cameras this does not present a problem. ;-)

I get significant noise at ISO 200, and the pictures are barely useable at 400. I've found an easy way to get a noisy/grainy look is to isolate the Blue Channel to a new Grayscale file -- it is usually pretty coarse.

Message edited by author 2011-11-07 13:57:10.
 11/07/2011 02:23:37 PM · #11
Yes, blue channel is a big grainer, and depending on your distribution or desired distribution of lights and darks, the red channel is good, if less grainy.
 11/07/2011 02:34:48 PM · #12
Its a fun challenge. At the point in editing where you usually say "Uh-oh", now you say "Oh-ya". Cut out the greens, sharpen until you get clumpy artifacts, back off a touch, then pour on the grain filters till full.
 11/07/2011 08:43:40 PM · #13
As an aside...in naivete I ask is there any difference between "grain" and "noise"?
 11/07/2011 08:48:04 PM · #14
Originally posted by gcoulson:
As an aside...in naivete I ask is there any difference between "grain" and "noise"?




Message edited by author 2011-11-07 22:02:24.
 11/07/2011 08:48:56 PM · #15
Originally posted by gcoulson:
As an aside...in naivete I ask is there any difference between "grain" and "noise"?

noise is bad, grain is good :)
 11/07/2011 08:55:34 PM · #16
I love this stuff!
 11/07/2011 09:24:32 PM · #17
Originally posted by gcoulson:
As an aside...in naivete I ask is there any difference between "grain" and "noise"?


For me noise is digital, it clumps, creates lines and creates cubic patterns in certain tonal ranges. Grain is more organic, and thins and thickens to enhance the shift form dark areas to light areas. Rarely does digital noise enhance an image.
 11/07/2011 09:25:44 PM · #18
Originally posted by BrennanOB:
Originally posted by gcoulson:
As an aside...in naivete I ask is there any difference between "grain" and "noise"?


For me noise is digital, it clumps, creates lines and creates cubic patterns in certain tonal ranges. Grain is more organic, and thins and thickens to enhance the shift form dark areas to light areas. Rarely does digital noise enhance an image.


Couldn't have said it better if I tried. I agree with this one.
 11/07/2011 10:17:20 PM · #19
Grain added in post via Nik SEP



Sensor noise as grain, not added in post.



Film grain



All different, all appealing...to me anyway. I see no harm in using sensor noise as a modern "grain".
11/07/2011 10:33:20 PM · #20
If you underexpose .JPG about 2.5 to 3 stops, and bring it up from the depths in processing, you can get an interesting looking digital grain.

This was done with an old Fuji S3 Pro. Individual results may vary.

11/07/2011 11:26:38 PM · #21


Grain added in post.
 11/07/2011 11:30:48 PM · #22
Topaz Lens Effects, which you can download for a 30-day free trial, has a film grain module that produces a softer, "clumpier" grain that looks more film-like to my eye...

R.
 11/08/2011 01:24:06 AM · #23
speaking of grain... taken two weeks ago

grain added in SilverEfex
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