The process of color correction is the final stage of post production and, besides correcting the colorimetry, is able to enhance the perception of the story created in editing and special effects created in compositing.
It's the last step before finalizing the movie because all the elements together will have the same general color scheme, which guides them from beginning to end, to make the movie as consistent as possible. In addition, each movie will have its kind of color correction, depending upon the emotion to be expressed, then the choice of hue, contrast and saturation, will be crucial to transfer to the public the the right mood.
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