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How can I compare colors in java?

im trying to create a random color generator, but I don't want similar colors to appear in the list of arrays

public class RandomColorGen {

public static Color RandColor() {
    Random rand = new Random();
    float r = rand.nextFloat();
    float g = rand.nextFloat();
    float b = rand.nextFloat();
    Color c = new Color(r, g, b, 1);
    return c;

}

public static ArrayList<Color> ColorList(int numOfColors) {
    ArrayList<Color> colorList = new ArrayList<Color>();
    for (int i = 0; i < numOfColors; i++) {
        Color c = RandColor();
        if(similarcolors){
            dont add
        }
        colorList.add(c);

    }
    return colorList;
}

}

I'm really confused, please help :)

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3 answers

Implement the sameTo () method in the Color class.

Then use:

public static ArrayList<Color> ColorList(int numOfColors) {
    ArrayList<Color> colorList = new ArrayList<Color>();
    for (int i = 0; i < numOfColors; i++) {
        Color c = RandColor();
        boolean similarFound = false;
        for(Color color : colorList){
            if(color.similarTo(c)){
                 similarFound = true;
                 break;
            }
        }
        if(!similarFound){
            colorList.add(c);
        } 

    }
    return colorList;
}

To implement a similar To:

Take a look at Color similarity / distance in the RGBA color space and to search for similar colors programmatically . A simple approach could be:

((r2 - r1) 2 + (g2 - g1) 2 + (b2 - b1) 2 ) 1/2

and

boolean similarTo(Color c){
    double distance = (c.r - this.r)*(c.r - this.r) + (c.g - this.g)*(c.g - this.g) + (c.b - this.b)*(c.b - this.b)
    if(distance > X){
        return true;
    }else{
        return false;
    }
}

However, you must find your X according to your imagination.

+9
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, :

Color c1 = Color.WHITE;
Color c2 = new Color(255,255,255);

if(c1.getRGB() == c2.getRGB()) 
    System.out.println("true");
else
    System.out.println("false");
}

getRGB int , , .

+4

Check out this link.
How to match similar colors in Java using getRGB
You can find color similarities in this thread.

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