Colour GradingScience, Style, Narrative

www.ifssproduction.netwww.ifss.edu.au

Light and ColourObjects do not have a colour; it is the light reflected from the object that is the colour we see.

The visible spectrum.

Light and Colour

Additive Primary ColoursColour Wheel : Complementary Colours

Colour Space

Computer Colour - RGBVideo Colour - YUV (YCrCb)

RGB YUV Rec709

- REC 709 - High Defintion- Panalog - Panasonic Genesis - Cineon - Kodak Di format (DPX)- REDSpace - RED camera

Linear and Log light perception

One Candle in a dark room...

Linear assumes that each candle contributes the same amount of light to the overall level that our eyes can see

Linear and Log light perception

In Log the apparent change in brightness between one candle and two is the same to our eyes as between two candles and four.

Linear and Log light perception

In linear each step in exposure is a uniform increment

In a log each step is larger than the previous one

[ie for each f-Stop up on a camera you double the amount of light] Linear Gamma Curve

Human eye = LogCelluloid Film = LogComputer Screen = LinearVideo camera sensor = Linear

Cameras apply a Gamma curve to the Linear information from the sensorComputer screens apply an inverse Gamma curve to interpret Log images on a linear display

Log images have a perceptually greater dynamic range by having slightly less range in the mid-tones and more levels of exposure in the shadows and highlights

Linear and Log light perception

Film Colour Evolution

Black and White

Film Colour Evolution

Black and Whitewith color filters

Film Colour Evolution

2-Strip ProcessingRed + Blue/Green

Film Colour Evolution

3-Strip colour - 1939

Physical Colour

Colour Language

1. Impression - our visual responseImprinting on the mind an element beyond the picture

2. Expression - our emotional responseReflecting emotional state, emotional change, emotional journey

3. Construction - our cultural responseBuilding upon, exploiting, playing to or against pre-existing knowledge

Colour and Impression

Colour Language

1. Impression - our visual responseImprinting on the mind an element beyond the picture

2. Expression - our emotional responseReflecting emotional state, emotional change, emotional journey

3. Construction - our cultural responseBuilding upon, exploiting, playing to or against pre-existing knowledge

Colour and Expression

Colour Language

1. Impression - our visual responseImprinting on the mind an element beyond the picture

2. Expression - our emotional responseReflecting emotional state, emotional change, emotional journey

3. Construction - our cultural responseBuilding upon, exploiting, playing to or against pre-existing knowledge and perceptions

Colour and Construction

Colour and Narrative

Colour and Style

Colour and Style

Colour and Form

Grading Process

Grading Process

Grading Process

Readings and ResourcesColour Correction by Kevin Shawhttp://ifsstech.files.wordpress.com/2008/06/color_correction.pdf

When colour correction is a necessity by Kevin Shawhttp://ifsstech.files.wordpress.com/2008/06/when_cc_is_a_necessity.pdf

Layer it by Kevin Shawhttp://ifsstech.files.wordpress.com/2008/06/layer_it.pdf

Website of Colorist Kevin Shaw (lots of great articles)http://www.finalcolor.com/

The nature of light and colourhttp://motion.kodak.com/motion/uploadedFiles/US_plugins_acrobat_en_motion_newsletters_filmEss_03_Nature-of-Light.pdf

The not so technical guide to log-gamma curveshttp://provideocoalition.com/index.php/aadams/story/the_not_so_technical_guide_to_s_log_and_log_gamma_curves/P0/

Professional Colour Correction with Premiere Prohttp://www.layersmagazine.com/professional-color-correction-three-way-color-corrector-in-premiere-pro.html

The Colorists (article on colour grading professionals)http://features.cgsociety.org/story_custom.php?story_id=3549

How to use Magic Bullet Looks (a step by step video)http://www.wonderhowto.com/how-to/video/how-to-use-magic-bullet-looks-262294/

Grading ‘return to dungeness’ : video tutorial on using MBLhttp://exposureroom.com/library/tutorials/view.aspx/22/

Using Colorista in Final Cut Pro Introductionhttp://www.redgiantsoftware.com/_assets/uploads/file/community-tutorial/Colorista_FInal_Cut_Intro_web.mov

Using Colorista in Final Cut Pro Advancedhttp://www.redgiantsoftware.com/_assets/uploads/file/community-tutorial/Colorista_FInal_Cut_Advanced_web.mov