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Update README.md
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‎07. 图像几何变换/README.md

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@@ -52,14 +52,7 @@ dst = cv2.flip(img, 1)
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要平移图片，我们需要定义下面这样一个矩阵，tx,ty是向x和y方向平移的距离：
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$$
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M = \left[
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\begin{matrix}
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1 & 0 & t_x \newline
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0 & 1 & t_y
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\end{matrix}
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\right]
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$$
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<div class="MathJax_Display" style="text-align: center;"><span class="MathJax" id="MathJax-Element-1-Frame" tabindex="0" style="text-align: center;"><nobr><span class="math" id="MathJax-Span-1" style="width: 8.839em; display: inline-block;"><span style="display: inline-block; position: relative; width: 7.6em; height: 0px; font-size: 116%;"><span style="position: absolute; clip: rect(1.727em, 1007.33em, 4.582em, -999.997em); top: -3.392em; left: 0em;"><span class="mrow" id="MathJax-Span-2"><span class="mi" id="MathJax-Span-3" style="font-family: MathJax_Math-italic;">M<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.11em;"></span></span><span class="mo" id="MathJax-Span-4" style="font-family: MathJax_Main; padding-left: 0.272em;">=</span><span class="mrow" id="MathJax-Span-5" style="padding-left: 0.272em;"><span class="mo" id="MathJax-Span-6" style="vertical-align: 0em;"><span style="font-family: MathJax_Size3;">[</span></span><span class="mtable" id="MathJax-Span-7" style="padding-right: 0.164em; padding-left: 0.164em;"><span style="display: inline-block; position: relative; width: 3.828em; height: 0px;"><span style="position: absolute; clip: rect(2.481em, 1000.49em, 4.852em, -999.997em); top: -3.984em; left: 0em;"><span style="display: inline-block; position: relative; width: 0.488em; height: 0px;"><span style="position: absolute; clip: rect(3.182em, 1000.43em, 4.151em, -999.997em); top: -4.685em; left: 50%; margin-left: -0.267em;"><span class="mtd" id="MathJax-Span-8"><span class="mrow" id="MathJax-Span-9"><span class="mn" id="MathJax-Span-10" style="font-family: MathJax_Main;">1</span></span></span><span style="display: inline-block; width: 0px; height: 3.99em;"></span></span><span style="position: absolute; clip: rect(3.182em, 1000.49em, 4.151em, -999.997em); top: -3.284em; left: 50%; margin-left: -0.267em;"><span class="mtd" id="MathJax-Span-19"><span class="mrow" id="MathJax-Span-20"><span class="mn" id="MathJax-Span-21" style="font-family: MathJax_Main;">0</span></span></span><span style="display: inline-block; width: 0px; height: 3.99em;"></span></span></span><span style="display: inline-block; width: 0px; height: 3.99em;"></span></span><span style="position: absolute; clip: rect(2.481em, 1000.49em, 4.852em, -999.997em); top: -3.984em; left: 1.511em;"><span style="display: inline-block; position: relative; width: 0.488em; height: 0px;"><span style="position: absolute; clip: rect(3.182em, 1000.49em, 4.151em, -999.997em); top: -4.685em; left: 50%; margin-left: -0.267em;"><span class="mtd" id="MathJax-Span-11"><span class="mrow" id="MathJax-Span-12"><span class="mn" id="MathJax-Span-13" style="font-family: MathJax_Main;">0</span></span></span><span style="display: inline-block; width: 0px; height: 3.99em;"></span></span><span style="position: absolute; clip: rect(3.182em, 1000.43em, 4.151em, -999.997em); top: -3.284em; left: 50%; margin-left: -0.267em;"><span class="mtd" id="MathJax-Span-22"><span class="mrow" id="MathJax-Span-23"><span class="mn" id="MathJax-Span-24" style="font-family: MathJax_Main;">1</span></span></span><span style="display: inline-block; width: 0px; height: 3.99em;"></span></span></span><span style="display: inline-block; width: 0px; height: 3.99em;"></span></span><span style="position: absolute; clip: rect(2.481em, 1000.87em, 5.175em, -999.997em); top: -3.984em; left: 3.02em;"><span style="display: inline-block; position: relative; width: 0.865em; height: 0px;"><span style="position: absolute; clip: rect(3.182em, 1000.87em, 4.313em, -999.997em); top: -4.685em; left: 50%; margin-left: -0.428em;"><span class="mtd" id="MathJax-Span-14"><span class="mrow" id="MathJax-Span-15"><span class="msubsup" id="MathJax-Span-16"><span style="display: inline-block; position: relative; width: 0.865em; height: 0px;"><span style="position: absolute; clip: rect(3.182em, 1000.33em, 4.151em, -999.997em); top: -3.984em; left: 0em;"><span class="mi" id="MathJax-Span-17" style="font-family: MathJax_Math-italic;">t</span><span style="display: inline-block; width: 0px; height: 3.99em;"></span></span><span style="position: absolute; top: -3.823em; left: 0.38em;"><span class="mi" id="MathJax-Span-18" style="font-size: 70.7%; font-family: MathJax_Math-italic;">x</span><span style="display: inline-block; width: 0px; height: 3.99em;"></span></span></span></span></span></span><span style="display: inline-block; width: 0px; height: 3.99em;"></span></span><span style="position: absolute; clip: rect(3.182em, 1000.81em, 4.421em, -999.997em); top: -3.284em; left: 50%; margin-left: -0.374em;"><span class="mtd" id="MathJax-Span-25"><span class="mrow" id="MathJax-Span-26"><span class="msubsup" id="MathJax-Span-27"><span style="display: inline-block; position: relative; width: 0.811em; height: 0px;"><span style="position: absolute; clip: rect(3.182em, 1000.33em, 4.151em, -999.997em); top: -3.984em; left: 0em;"><span class="mi" id="MathJax-Span-28" style="font-family: MathJax_Math-italic;">t</span><span style="display: inline-block; width: 0px; height: 3.99em;"></span></span><span style="position: absolute; top: -3.823em; left: 0.38em;"><span class="mi" id="MathJax-Span-29" style="font-size: 70.7%; font-family: MathJax_Math-italic;">y<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.003em;"></span></span><span style="display: inline-block; width: 0px; height: 3.99em;"></span></span></span></span></span></span><span style="display: inline-block; width: 0px; height: 3.99em;"></span></span></span><span style="display: inline-block; width: 0px; height: 3.99em;"></span></span></span></span><span class="mo" id="MathJax-Span-30" style="vertical-align: 0em;"><span style="font-family: MathJax_Size3;">]</span></span></span></span><span style="display: inline-block; width: 0px; height: 3.397em;"></span></span></span><span style="display: inline-block; overflow: hidden; vertical-align: -1.247em; border-left: 0px solid; width: 0px; height: 3.003em;"></span></span></nobr></span></div>
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平移是用仿射变换函数`cv2.warpAffine()`实现的：
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