1.Define the meaning of CMYK and RGB
|CMYK is a scheme for combining primary pigments. The C stands for cyan (aqua), M stands for magenta (pink), Y for yellow, and K for Key. The key color in today’s printing world is black but it has not always been.||All colors begin with black “darkness”, to which different color “lights” are added to produce visible colors. RGB|
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2. Differentiate the purpose of Channel and Colour Correction
Color correction involves controlling both an image’s contrast and its color (exercising separate control over its hue and saturation). This section explains these important imaging concepts and can divided into 6 which are Contrast Explained, Luma Explained, Gamma Explained, Chroma Explained, Primary and Secondary Color Relationships Explained and The HSL Color Space Model Explained.
Color correction is a contrast adjustments are generally the first, adjustments made. Contrast is a way of describing an image’s tonality. If you eliminate all color from an image, reducing it to a series of grayscale tones, the contrast of the picture is seen by the distribution of dark, medium, and light tones in the image.
Saturation and Brightness
Saturation is usually one property of three when used to determine a certain color and measured as percentage value. Saturation defines a range from pure color (100%) to gray (0%) at a constant lightness level. A pure color is fully saturated.
Brightness is an one of our perception which is mainly influenced by a color’s lightness. This is probably why brightness and lightness are often mixed up. For one color of specific hue the perception of brightness is also more intense, if we increase saturation. A higher level of saturation makes a color look brighter. In relation to other colors the brightness intensity of a color is also influenced by its hue.