blocks|key|84302|text|像这样怎么样？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|84303|bool+ColorsAreClose(Color+a,+Color+z,+int+threshold+=+50)
{
++++int+r+=+(int)a.R+-+z.R,
++++++++g+=+(int)a.G+-+z.G,
++++++++b+=+(int)a.B+-+z.B;
++++return+(r*r+%2B+g*g+%2B+b*b)+<=+threshold*threshold;
}|code-block|syntax|javascript|84304|(我只是猜测了默认阈值，但您应该将其设置为您想要的。)|84305|基本上，这只是计算三个颜色通道在两种颜色之间是否足够接近。|84306|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

How about something like this?

<pre><code>bool ColorsAreClose(Color a, Color z, int threshold = 50)
{
 int r = (int)a.R - z.R,
 g = (int)a.G - z.G,
 b = (int)a.B - z.B;
 return (r*r + g*g + b*b) &lt;= threshold*threshold;
}
</code></pre>

(I just guessed at the default threshold, but you should set it to what you want.)

Basically this just computes, on average, whether the three color channels are close enough between the two colors.

blocks|key|84332|text|一种简单的方法，测量RGB距离：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|84333|public+bool+ColorsAreClose(Color[]+colors)
{

++++var+rDist+=+Math.Abs(colors[0].R+-+colors[1].R);
++++var+gDist+=+Math.Abs(colors[0].G+-+colors[1].G);
++++var+bDist+=+Math.Abs(colors[0].B+-+colors[1].B);

++++if(rDist+%2B+gDist+%2B+bDist+>+Threshold)
++++++++return+false;

++++return+true;

}|code-block|syntax|javascript|84334|阈值是一个常量，其最大偏差为您要考虑的最小偏差。|84335|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

A simple way, measure RGB distance:
<pre><code>public bool ColorsAreClose(Color[] colors)
{

 var rDist = Math.Abs(colors[0].R - colors[1].R);
 var gDist = Math.Abs(colors[0].G - colors[1].G);
 var bDist = Math.Abs(colors[0].B - colors[1].B);

 if(rDist + gDist + bDist &gt; Threshold)
 return false;

 return true;

}
</code></pre>
Threshold is a constant with the maximum deviation you want to consider close.

blocks|key|84354|text|这有点主观和不科学，我曾经在一个项目中使用过以下过程。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|84355|public+bool+IsMatch(Color+colorA,+Color+colorB)
{
++++return+IsMatch(colorA.Red,+colorB.Red)
++++++++&&+IsMatch(colorA.Green,+colorB.Green)
++++++++&&+IsMatch(colorA.Blue,+colorB.Blue);
}

public+bool+IsMatch(double+colorA,+double+colorB)
{
++++var+difference+=+colorA+-+colorB;
++++return+-5+<+difference
++++++++%7C%7C+difference+<+5;
}|code-block|syntax|javascript|84356|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This is somewhat subjective and not scientific, I used the following procedure on a project once.

<pre><code>public bool IsMatch(Color colorA, Color colorB)
{
 return IsMatch(colorA.Red, colorB.Red)
 &amp;&amp; IsMatch(colorA.Green, colorB.Green)
 &amp;&amp; IsMatch(colorA.Blue, colorB.Blue);
}

public bool IsMatch(double colorA, double colorB)
{
 var difference = colorA - colorB;
 return -5 &lt; difference
 || difference &lt; 5;
}
</code></pre>

blocks|key|84383|text|如果只是谈论色调，你可以单独比较RGB值的差异，如果总的差异在你设置的一个设置值之下，那么你可以称它们为close。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|84384|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

If talking just about hue you could compare the difference in RGB values separately and if the total difference is under a set amount set by you then you could call them close.

blocks|key|4590681|text|您可以从以下内容开始：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4590682|double+delta+=+Math.Abs(c1.GetHue()+-+c2.GetHue());
if(delta+>+180)
++delta+=+360+-+delta;
return+delta+<=+threshold+|code-block|syntax|javascript|4590683|有关色调的更多信息，请参阅：http://en.wikipedia.org/wiki/Hue|offset|length|4590684|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Hue^0|0|0|E|W|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

You can start with:

<pre><code>double delta = Math.Abs(c1.GetHue() - c2.GetHue());
if(delta &gt; 180)
 delta = 360 - delta;
return delta &lt;= threshold 
</code></pre>

For more info about the hue see: <a href="http://en.wikipedia.org/wiki/Hue" rel="nofollow">http://en.wikipedia.org/wiki/Hue</a>

blocks|key|4590699|text|您可以计算3-D颜色空间距离为|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4590700|Math.Sqrt(Math.Pow(c1.R-c2.R,2)%2BMath.Pow(c1.G-c2.g,2)%2BMath.Pow(c1.B-c2.b,2)));+|code-block|syntax|javascript|4590701|或者，您可以计算色调差异为|4590702|Math.Abs(c1.GetHue()+-+c2.GetHue());|4590703|更深入的讨论可以在here上找到。|offset|length|4590704|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/27374550/how-to-compare-color-object-and-get-closest-color-in-an-color/27375621#27375621^0|0|0|0|0|9|4|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|10|8|@]|9|@$M|11|N|12|1|13]]|A|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

You can calculate the 3-D color space distance as

<pre><code>Math.Sqrt(Math.Pow(c1.R-c2.R,2)+Math.Pow(c1.G-c2.g,2)+Math.Pow(c1.B-c2.b,2))); 
</code></pre>

or you can calculate the hue difference as 

<pre><code>Math.Abs(c1.GetHue() - c2.GetHue());
</code></pre>

A more thorough discussion can be found <a href="https://stackoverflow.com/questions/27374550/how-to-compare-color-object-and-get-closest-color-in-an-color/27375621#27375621">here</a>.

I am creating a kind of color tool and this tool should tell me if color is close to another color,
For example:
<pre><code>Color[] colors = new colors[] { Color.FromArgb(0,0,255), Color.FromArgb(0,109,251)};
//colors[0] IS BLUE
//colors[1] IS BRIGHTER BLUE (#006DFB)
bool TheyClose = ColorsAreClose(colors[0],colors[1]); //TRUE BLUE IS CLOSE
//TheyColse Should Be = TURE
</code></pre>
How should a <code>ColorsAreClose()</code> function Look?

How to determine if a color is close to another color

我正在创建一种颜色工具，这个工具应该告诉我颜色是否接近另一种颜色，例如：Color[] colors = new colors[] { Color.FromArgb(0,0,255), Color.FromArgb(0,109,251)};//colors[0] IS BLUE//colors[1] IS BRIGHT...

问如何确定一种颜色是否接近另一种颜色
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