Adding to Color Channels

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Explore adding values to each of the HSB and RGB color channels to adjust an image. Each slider adds the value shown to the corresponding component of each pixel in the image. This is also an example of the use of three-dimensional slider controls. The HSB control sliders correspond to hue, saturation and brightness. The RGB control sliders correspond to red, green and blue color channels. The rose image is from [1].

Contributed by: Abby Brown (January 2020)
Open content licensed under CC BY-NC-SA



The "HSB" slider goes from 0 to 1 so that the hue cycles through all options just once. Going from –1 to 1 would cover the range twice.


[1] The Home Depot. "Red Mister Lincoln Rose." (Jan 17, 2020)

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