Adobe Photoshop CC 2014 v.14.xx - Manual (Page 499)

Vignette and grain effects in Camera Raw
To the top
Amount
Size
Roughness
To the top
Simulate film grain
Apply a postcrop vignette
Simulate film grain
The Grain section of the Effects tab has controls for simulating film grain for a stylistic effect reminiscent of particular film stocks. You can also use
the Grain effect to mask enlargement artifacts when making large prints.
Together, the Size and Roughness controls determine the character of the grain. Check grain at varying zoom levels to ensure that the character
appears as desired.
For a video tutorial about using the Grain effect in Camera Raw, see The new Grain feature in CS5 by Matt Kloskowski or Black and white film
grain in Photoshop and Lightroom by Dan Moughamian.
No grain applied (top), grain effect applied (bottom).
Controls the amount of grain applied to the image. Drag to the right to increase the amount. Set to zero to disable grain.
Controls grain particle size. At sizes of 25 or greater, the image may appear slightly blurred.
Controls the regularity of the grain. Drag to the left to make the grain more uniform; drag to the right to make the grain more uneven.
Apply a postcrop vignette
To apply a vignette to a cropped image for artistic effect, use the Post Crop Vignetting feature.
For a video tutorial about creating postcrop vignettes in Camera Raw, see Vignetting in Camera Raw CS5 by Matt Kloskowski.
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