Post-production is the name for all the work that gets done on the video after it’s been shot. Part of post-production sometimes involves filtering the video to adjust colour and brightness. Here are examples of how different filters can change an image.
Below is the “original” image, without any filter. It’s too dark, and the colours are a little blue-ish which makes the image look cold. Above is the same image with a “Warm Gamma Correction” filter, which makes it brighter and warms the colours to a more orange tone. This is my favourite filter, but I’m colour-blind so I have to be careful about changing the colour balance. What looks like a beautiful tanned skin tone to me might look green or orange to everybody else (I don’t even know if the example here is correct – you tell me!).
Below are two more examples. “Neutral Gamma Correction” brightens without changing the colour tones. This looks fine to me, but personally I prefer the warmer version. “Brightness/Contrast” has a similar effect to gamma correction, but it often makes light areas too bright, causing them to burn-out like an over-exposed photograph. I used to love the brightness-contrast filter, but now I prefer gamma correction because it doesn’t have that problem.
Which of these examples do you prefer? Let me know in the comments below. Thanks!