Color Correction Look Book: Creative Grading Techniques for Film and Video by Van Hurkman Alexis

Author:Van Hurkman, Alexis
Language: eng
Format: epub
Publisher: Pearson Education
Published: 2013-12-11T16:00:00+00:00

Chapter 13. Grain, Noise, and Texture

In general, it’s pretty safe to say that while noise is something to be avoided, grain is an aspect of the cinematic image that cinematographers and directors embrace (although that is beginning to change). This chapter compares the difference between digital noise and film grain and includes some tips for how integrating noise into an image can be beneficial and ways you might go about doing it.

What Is Digital Noise?

Along with the individual pixels of detail inherent to any image, digital camera circuitry introduces noise. The light-sensitive silicon chips (currently, CCD or CMOS) at the heart of modern video recording cameras are, below a certain threshold of exposure, inherently noisy. As with audio recording circuitry, there is a noise floor at which a certain amount of random electronic fluctuations always occurs. The amount of this noise depends on the quality and size of the chip(s) used by a particular camera and on the amount of light within the image being recorded.

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.