Konica Minolta G530 instruction manual AN Introduction to Color, RGB color channels

RGB color channels

The red, green, and blue color channels can be adjusted in five levels. Any changes made are applied to the live image. See pages 68 and 69 for more on custom functions. Color is adjusted on the manual recording menu.

AN INTRODUCTION TO COLOR

In photography, red, green, and blue are the primary colors. The secondary colors, cyan, magenta, and yellow, are made from combining the primary colors: cyan = blue

+green, magenta = blue + red, and yellow = red + green. The primary and secondary colors are grouped in complementary pairs: red and cyan, green and magenta, and blue and yellow.

Knowing the complementary colors is very important in color balancing. If the image has a specific color cast, either subtracting the color or adding its complementary color will create a natural looking image.

Adding or subtracting equal parts of red, green, and blue have no affect on the color balance. However, changing two colors equally has the same affect as the opposite change with one color; +2 green and +2 red is the same as -2 blue. The greatest change in a specific color comes by setting the color channels to their opposite extremes. To make an image as blue as possible, set the color channels to +2 blue, -2 red, and -2 green.

RED

MAGENTAYELLOW

BLUE		GREEN
	CYAN
Increase	Image is too:	Decrease
Blue + Green	Red	Red
Blue + Red	Green	Green
Red + Green	Blue	Blue
Red	Cyan	Blue + Green
Green	Magenta	Blue + Red
Blue	Yellow	Red + Green

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