Update README.md

snowflowersnowflake · web-flow · commit 837e04c740dc · 2019-10-28T12:52:05.000+08:00
diff --git a/番外篇07. 亮度与对比度/README.md b/番外篇07. 亮度与对比度/README.md
@@ -10,7 +10,11 @@
 
 亮度调整是将图像像素的强度整体变大/变小，对比度调整指的是图像暗处的像素强度变低，亮出的变高，从而拓宽某个区域内的显示精度。
 
-OpenCV中亮度和对比度应用这个公式来计算：$ g(x)=\alpha f(x)+\beta $，其中：α(>0)、β常称为增益与偏置值，分别控制图片的对比度和亮度。
+OpenCV中亮度和对比度应用这个公式来计算：
+
+<span class="MathJax" id="MathJax-Element-1-Frame" tabindex="0" data-mathml="<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mi>g</mi><mo stretchy=&quot;false&quot;>(</mo><mi>x</mi><mo stretchy=&quot;false&quot;>)</mo><mo>=</mo><mi>&amp;#x03B1;</mi><mi>f</mi><mo stretchy=&quot;false&quot;>(</mo><mi>x</mi><mo stretchy=&quot;false&quot;>)</mo><mo>+</mo><mi>&amp;#x03B2;</mi></math>" role="presentation" style="position: relative;"><nobr aria-hidden="true"><span class="math" id="MathJax-Span-1" style="width: 9.003em; display: inline-block;"><span style="display: inline-block; position: relative; width: 7.503em; height: 0px; font-size: 120%;"><span style="position: absolute; clip: rect(1.336em, 1007.5em, 2.669em, -999.997em); top: -2.219em; left: 0em;"><span class="mrow" id="MathJax-Span-2"><span class="mi" id="MathJax-Span-3" style="font-family: MathJax_Math-italic;">g<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.003em;"></span></span><span class="mo" id="MathJax-Span-4" style="font-family: MathJax_Main;">(</span><span class="mi" id="MathJax-Span-5" style="font-family: MathJax_Math-italic;">x</span><span class="mo" id="MathJax-Span-6" style="font-family: MathJax_Main;">)</span><span class="mo" id="MathJax-Span-7" style="font-family: MathJax_Main; padding-left: 0.281em;">=</span><span class="mi" id="MathJax-Span-8" style="font-family: MathJax_Math-italic; padding-left: 0.281em;">α</span><span class="mi" id="MathJax-Span-9" style="font-family: MathJax_Math-italic;">f<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.058em;"></span></span><span class="mo" id="MathJax-Span-10" style="font-family: MathJax_Main;">(</span><span class="mi" id="MathJax-Span-11" style="font-family: MathJax_Math-italic;">x</span><span class="mo" id="MathJax-Span-12" style="font-family: MathJax_Main;">)</span><span class="mo" id="MathJax-Span-13" style="font-family: MathJax_Main; padding-left: 0.225em;">+</span><span class="mi" id="MathJax-Span-14" style="font-family: MathJax_Math-italic; padding-left: 0.225em;">β<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.003em;"></span></span></span><span style="display: inline-block; width: 0px; height: 2.225em;"></span></span></span><span style="display: inline-block; overflow: hidden; vertical-align: -0.33em; border-left: 0px solid; width: 0px; height: 1.337em;"></span></span></nobr><span class="MJX_Assistive_MathML" role="presentation"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>g</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><mi>α</mi><mi>f</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>+</mo><mi>β</mi></math></span></span>
+
+，其中：α(>0)、β常称为增益与偏置值，分别控制图片的对比度和亮度。
 
 > 经验之谈：此处对α/β控制对比度和亮度有争议，具体请参考：[OpenCV关于对比度和亮度的误解](http://blog.csdn.net/abc20002929/article/details/40474807)。
 
@@ -43,4 +47,4 @@ cv2.waitKey(0)
 - [numpy.clip()](https://docs.scipy.org/doc/numpy/reference/generated/numpy.clip.html#numpy.clip)
 - [OpenCV关于对比度和亮度的误解](http://blog.csdn.net/abc20002929/article/details/40474807)
 - [OpenCV改变图像亮度和对比度以及优化](http://blog.csdn.net/u013139259/article/details/52145377)
-- [Mat::convertTo](https://docs.opencv.org/3.1.0/d3/d63/classcv_1_1Mat.html#a3f356665bb0ca452e7d7723ccac9a810)
+- [Mat::convertTo](https://docs.opencv.org/3.1.0/d3/d63/classcv_1_1Mat.html#a3f356665bb0ca452e7d7723ccac9a810)
