[Nuke] Colour Correct

Colour correcting a merge

Before

Grade

Colour Correct – changing the values of each hue based on the data from the background image.

Using the yellows of the horizon for the highlights, and the blues as the shadows.

Colour correct with a ramp mask

Toe node to lift the black levels

Before unpremultifying the alpha

Final comp

Final plate

I also added in the shadow of the plane in the water through a merge and a duplicate of the plane read. I tried to match the direction of the shadows but I’m not sure its position is correct.

[Nuke] Rotoscoping

Roto practice with channels
Demonstrating Rotoscoping

Through use of the “roto” node on nuke, I made various curves tracing out the moving man.

Separate components of the man are roto’d individually. Every few frames adjusting the curves to ensure that the roto curve matches the mans movement in the frame.

[Nuke] Colour Correcting

After learning about concepts including the rule of thirds when shooting, I recording a juggling sequence.

I used 3 light sources in an attempt to recreate studio style lighting. One was a desk lamp used as a key light for the subject.

Another desklamp as a backlight.

And a flood light, shone against a mattress as a fill light – in the hopes of creating a nice soft fill.

Before

After

Using nuke I proceeded to colour correct the footage.

Firstly I applied a grade. Followed by a colour correct with a ramp mask (to mimic the light source)
I adjusted the exposure and hue corrected the footage.

It is then important to “clamp” the footage after all of the adjustments to ensure that its blackest blacks and whitest whites are visible.

Ramped mask on colour correct.