Color Correction
In this week e-learning, we are tasked to look up on videos regarding color correction effects which are the
The Auto Color effect adjusts the contrast and color of an image after analyzing the shadows, midtones, and highlights of the image.
ORIGINAL
The result is that highlights appear lighter and shadows appear darker. Because Auto Contrast and Auto Color don’t adjust channels individually, they don’t introduce or remove color casts. The Auto Levels effect uses many of the same controls as the Auto Color and Auto Contrast effects.
In this week e-learning, we are tasked to look up on videos regarding color correction effects which are the
- auto color
- auto contrast
- auto level
- hue & saturation
- curves
- color balance.
The Auto Color effect adjusts the contrast and color of an image after analyzing the shadows, midtones, and highlights of the image.
ORIGINAL
AFTER AUTO COLOR
There's two settings for auto color:
- Blend with original:
The transparency of the effect. The result of the effect is blended with the original image, with the effect result composited on top. The higher you set this value, the less the effect affects the layer. For example, if you set this value to 100%, the effect has no visible result on the layer; if you set this value to 0%, the original image doesn’t show through.
- Temporal smoothing:
The range of adjacent frames, in seconds, analyzed to determine the amount of correction needed for each frame, relative to its surrounding frames. If Temporal Smoothing is 0, each frame is analyzed independently, without regard for surrounding frames. Temporal Smoothing can result in smoother looking corrections over time.
2) AUTO CONTRAST
The Auto Contrast effect adjusts the overall contrast and mixture of colors. Each effect maps the lightest and darkest pixels in the image to white and black, and then redistributes the intermediate pixels.The result is that highlights appear lighter and shadows appear darker. Because Auto Contrast and Auto Color don’t adjust channels individually, they don’t introduce or remove color casts. The Auto Levels effect uses many of the same controls as the Auto Color and Auto Contrast effects.
3) AUTO LEVELS
The Auto Levels effect maps the lightest and darkest values in each color channel in the image to white and black, and then redistributes the intermediate values. As a result, highlights appear lighter and shadows appear darker. Because Auto Levels adjusts each color channel individually, it may remove or introduce color casts.
4) EQUALIZE
The Equalize effect alters the pixel values of an image to produce a more consistent brightness or color component distribution. The effect works similarly to the Equalize command in Adobe Photoshop. Pixels with 0 alpha (completely transparent) values aren’t considered, so masked layers are equalized based on the mask area.
EQUALIZE - 50%
EQUALIZE - 100%
EQUALIZE BRIGHTNESS - 50%
EQUALIZE BRIGHTNESS - 100%
5) HUE & SATURATION
The Hue/Saturation effect adjusts the hue, saturation, and lightness of individual color components in an image. This effect is based on the color wheel. Adjusting the hue, or color, represents a move around the color wheel. Adjusting the saturation, or purity of the color, represents a move across its radius. Use the Colorize control to add color to a grayscale image converted to RGB, or to add color to an RGB image.
- Master Hue:Specifies the overall hue of the channel chosen from the Channel Control menu. Use the dial, which represents the color wheel, to change the overall hue. The underlined value displayed above the dial reflects the number of degrees of rotation around the wheel from the original color of a pixel. A positive value indicates clockwise rotation; a negative value indicates counterclockwise rotation. Values range from –180 to +180.
- Master Saturation:Specify the overall saturation and lightness of the channel chosen from the Channel Control menu. Values range from –100 to +100.
- Colorize:Adds color to a grayscale image converted to RGB, or adds color to an RGB image—for example, to make it look like a duotone image by reducing its color values to one hue.
- Colorize Hue, Colorize Saturation, Colorize Lightness:Specify the hue, saturation, and lightness of the color range chosen from the Channel Control menu. After Effects displays only the sliders for the Channel Control menu choice.
HUES
HUE +50
HUE+100
HUE-50
SATURATION
SATURATION +50
SATURATION +100
6) CURVES
The Curves effect adjusts the tonal range and tone response curve of an image. The Levels effect also adjusts tone response, but the Curves effect gives you more control. With the Levels effect you make the adjustments using only three controls (highlights, shadows, and midtones). With the Curves effect, you can arbitrarily map input values to output values using a curve defined by 256 points.
7) COLOR BALANCE
The Color Balance effect changes the amount of red, green, and blue in the shadows, midtones, and highlights of an image.
Preserve Luminosity preserves the average brightness of the image while changing the color. This control maintains the tonal balance in the image.
In order to make the sea view more beautiful, i can change the blue into a deeper blue (with preserve luminosity) and warm blue (without preserve luminosity).
WITHOUT LUMINOSITY, SHADOW BLUE BALANCE +100%
WITH LUMINOSITY, SHADOW BLUE BALANCE +100%
WITHOUT LUMINOSITY, SHADOW RED BALANCE +100%
WITH LUMINOSITY, SHADOW RED BALANCE +100%
Overall, in this tutorial, i've learnt on how to change the colours for the images by adding the effects under color correction. This is very simple and convenient as some of the images might not be suitable with the theme of our footage and we need these images to be inside. Therefore, by changing their color we are able to use these images instead of re-taking. Besides, these effects are very useful for my project 2.