老顽童 发表于 2008-6-1 00:45

听课,学习了!

麓山石 发表于 2008-6-1 22:48

<P><SPAN style="FONT-SIZE: 7.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &#39;Times New Roman&#39;; mso-hansi-font-family: &#39;Times New Roman&#39;; mso-bidi-font-family: &#39;Times New Roman&#39;; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><FONT size=2>颜色是什么呢？</FONT></SPAN></P>
<P><SPAN style="FONT-SIZE: 7.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &#39;Times New Roman&#39;; mso-hansi-font-family: &#39;Times New Roman&#39;; mso-bidi-font-family: &#39;Times New Roman&#39;; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><FONT size=2><SPAN style="COLOR: #cc0000">颜色</SPAN>就是具有一定波长的光束。在可见光范围内我们可以分辩出七种颜色，即红、橙、黄、绿、青、蓝、紫。</FONT></SPAN></P>

麓山石 发表于 2008-6-1 22:50

<SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: &#39;Times New Roman&#39;; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体"><?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" /><v:shapetype id=_x0000_t75 stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600">&nbsp;<SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &#39;Times New Roman&#39;; mso-hansi-font-family: &#39;Times New Roman&#39;; mso-bidi-font-family: &#39;Times New Roman&#39;; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt">一个物体对某种光线反射的多，看上去其就呈现某种颜色。</SPAN><v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path o:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype></SPAN>

麓山石 发表于 2008-6-1 22:54

<P>白色的物体对所有的光线都反射，所以我们看到所有光在一起组成的颜色-----白色。</P>

麓山石 发表于 2008-6-1 22:56

<P>黑色的物体对所有的光线都吸收，所以我们看到所有光都没有的颜色-----黑暗的黑色。</P>

麓山石 发表于 2008-6-1 23:06

综上所述，没有光就没有色。光即是色，色即是光。

麓山石 发表于 2008-6-1 23:11

颜色分为有彩色和无彩色两种。红黄蓝等有一定色相的叫有彩色，黑白灰为无彩色。

麓山石 发表于 2008-6-1 23:18

<P>每一种有彩色由色相、明度、饱和度三要素决定。</P>
<P>而无彩色（黑白灰）只有灰度一个属性。</P>

麓山石 发表于 2008-6-1 23:27

<SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &#39;Times New Roman&#39;; mso-hansi-font-family: &#39;Times New Roman&#39;; mso-bidi-font-family: &#39;Times New Roman&#39;; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt">色相：指各种颜色的名称和相貌。是对色彩<FONT size=2>的直观表达。也叫色别。如红、黄、蓝、桔红、土黄、天蓝等色彩名称。</FONT></SPAN>

麓山石 发表于 2008-6-1 23:33

<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: &#39;Times New Roman&#39;; mso-hansi-font-family: &#39;Times New Roman&#39;"><FONT size=3>明度：指色彩的明暗和深浅程度，也叫灰度。如深红、浅绿、亮黄、灰蓝等。</FONT></SPAN></P>
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