Question

4.11 LAB: Remove gray from RGBSummary: Given integer values for red, green, and blue, subtract the gray from each value.Computers represent color by combining the sub-colors red, green, and blue (rgb). Each sub-color's value can range from 0 to 255. Thus (255, 0, 0) is bright red, (130, 0, 130) is a medium purple, (0, 0, 0) is black, (255, 255, 255) is white, and (40, 40, 40) is a dark gray. (130, 50, 130) is a faded purple, due to the (50, 50, 50) gray part. (In other words, equal amounts of red, green, blue yield gray).Given values for red, green, and blue, remove the gray part.Ex: If the input is:13050130the output is:80 0 80Find the smallest value, and then subtract it from all three values, thus removing the gray.Note: This page converts rgb values into colors.LAB

Answer 1

To remove gray from RGB, find the smallest among the red, green, and blue values, and subtract that value from all three to enhance the color's saturation and remove the faded effect.

Step-by-step explanation:

To remove gray from an RGB color, we need to find the component (red, green, or blue) that has the smallest value since gray is composed of equal amounts of these three primary colors. Once the smallest value is identified, we subtract it from all three components to reduce the gray content and enhance the color's saturation. This approach brings out the purest form of the color by increasing its intensity.

For example, given the RGB values (130, 50, 130), we identify that 50 is the smallest value. To remove the gray, we subtract 50 from all three values:

• Red: 130 - 50 = 80
• Green: 50 - 50 = 0
• Blue: 130 - 50 = 80

The resulting RGB values are (80, 0, 80), which represents a more saturated purple color, as the faded effect caused by gray has been eliminated.