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You might have seen few color grading scenarios where footage is already white balanced but still certain light source in the frame reflects suffers colour imbalance. One of the most common examples of such situations is when user is recording footage inside a house that possesses tungsten lights. Now in case if a window appears in your shot then daylight will develop a blue contrast in footage that creates awkward effect with warm tungsten lights.
The mixed color issues can generally occur in several ways but the best thing to know is that DaVinci Resolve 12.5 can help you to get rid of all odds with its specially designed color grading feature. Your color temperatures might be facing several issues with unwanted mixing but DVR is always ready to provide you easier solution with three simple steps.
How to Fix White Balance Easier
How to properly fix White Balances in DaVinci Resolve 12.5?
Section 1: Fix White Balance with Colour Wheels:
Step 1: Simply go to color page on your DVR platform, now select scopes and further you need to choose Parade.
Here WFM or waveform monitor overlays the blue, green, and red channels in overlapping fashion so that users can visualize their alignments.
Parade or RGB parade scope helps to show multiple waveforms that reflects strength of R, G and B on video signals. Here you will be able to get information about individual signal intensity so that they can be easily compared on the basis of highlights, shadows and midtones and further colour cast correction can be performed.
Vectorscope helps to measure overall range of saturation and hue inside a particular image. These measurements are with respect to centered graticule and the reference frame is generated using crosshairs.
Step 2: Now simply go to Color Wheels and move to Page 2:
Here the Page 2 on colour wheels contains information about shadow, colour boost, midtoen details and highlights recovery that are commonly present in raw palettes produced by camera. In case if you are grading raw format of a camera then these additional controls will help you to have adjustments with greater latitude.
Step 3: In case if your clip is of reddish colour then simply drag temperature slider to left side and it will immediately bring those reds to lower value and blues will be adjusted for better view. The greenish clips can be balanced by moving temperature slider to right direction and the software will naturally make a balance with low green and high red tones. For great results, it is essential to have very close values of red, blue and green.
Step 4: Fine Tune Color: In case if your video background is suffering with greenish blue colour then one needs to adjust Hue Vs Saturation curve from HSL curves sections and try to isolate purples as well as blues as per need.
The HLS Curves:
There are three unique sets of Hue Curves and you will also be able to access one additional curve in form of Lum Vs Sat Curve. It assists users to make various curve based changes to images. On the other side, custom curves assists users to make easy adjustments for color channels tonality based images. The hue curves can be accessed to adjust saturation, hue and luma of elements depending upon their hue value.
Hue Vs Sat: Helps to change saturation of hue in image.
Hue Vs Hue: Allows adjusting hue for any other hue.
Hue Vs Lum: Can be used to adjust value of lightness of elements for various colours.
Lum Vs Sat: It is same as that of custom curve and here saturation changes are done as per user defined parameters.
Section 2: Fix White Balance with Custom RGB Curves:
Step 1: Go to viewer window and simply select qualifier available at left corner.
Step 2: Develop a serial node.
Step 3: It is time to open the custom curves.
These custom curves help users to enjoy easy adjustments for R,G,B and Y channels. The curve mode on curve pallet is of two types: the curve editor on left and curve controls are available on right. The horizontal axis on this curve helps to indicate image tonality range between black and white whereas vertical axis represents the alteration range for users. Few additional controls are available on curve editor that can be used to make advanced variations for colour information.
Using Black Point Control: If you drag this control in upward direction then it will adjust the black point for signals to higher side and in case of right drags the black point is moved to lower values.
Using White Point Control: Dragging this control function downwards leads to gain adjustments for lower white points whereas left drags means you will be able to adjust gain to get higher white points on signal.
Step 4: Users need to get a sample pure black or pure white colour and check the RGB values for that. Practice adjusting RGB curves in horizontal and vertical direction to add perfect balance over white colour.
Liza Brown is a writer and a lover of all things video.
Follow @Liza Brown
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