For color grading, we created a new sequence for different scenes. We copied each scene in four or five and color grade them separately. Then choose the best one by comparing them. There is one important thing that opens your mind and does not be limited. Sometimes, I may think that this color is so wired. I give it up not because I hate it. The reason is it’s new and creative. I can not accept it at first. However, this is also the process some best things come up, such as the color grade of the ghost.

For white room part, we want the background completely white and bright. We move the exposure to the right and strengthen the contrast. However, characters would also get so unclear. It’s not what we want. Thus, we move the black to the left to make them stand out from the frame.

We use different color for different scenes. For the whole film, the style is quite dark.