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Summary of points to note about license plates

巴扎黑
Release: 2023-03-08 17:36:01
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具体步骤1、将采集到的彩色车牌图像转换成灰度图2、灰度化的图像利用高斯平滑处理后,再对其进行中直滤波3、使用Sobel算子对图像进行边缘检测4、对二值化的图像进行腐蚀,膨胀,开运算,闭运算的形态学组合变换5、对形态学变换后的图像进行轮廓查找,根据车牌的长宽比提取车牌代码实现图像灰度化gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)高斯平滑,中值滤波处理gaussian = cv2.GaussianBlur(gray, (3, 3), 0, 0, cv2.BORDER_DEFAULT) median = cv2.medianBlur(gaussian, 5)Sobel边缘检测sobel

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Summary of points to note about license plates

简介:具体步骤1、将采集到的彩色车牌图像转换成灰度图2、灰度化的图像利用高斯平滑处理后,再对其进行中直滤波3、使用Sobel算子对图像进行边缘检测4、对二值化的图像进行腐蚀,膨胀,开运算,闭运算的形态学组合变换5、对形态学变换后的图像进行轮廓查找,根据车牌的长宽比提取车牌<!more>代码实现图像灰度化gray=cv2.cvtColor(img,cv2.COLORBGR2GR...

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简介:PHP生成唯一会员卡号    当我们要将一个庞大的数据进行编号时,而编号有位数限制,比如5位的车牌号、10位的某证件号码、订单流水号、短网址等等,我们可以使用36进制计算出符合位数的不重复的编号。?查看演示DEMO?我们将0-Z(0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ)分别代表数值0-35,如字母Z代表35。这样的话我

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简介:PHP模拟POST aspx页面不成功下面实例返回 是  0|访问限制!请重新加载页面应该放回 -2|车牌号码错误

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Introduction: Recently, when processing a SQL query record, I encountered some problems. After many queries and explorations, Now to summarize, for example, I query a table with SQL and get all the license plates. Then, I take these license plates and convert them into license plate number 1, license plate number 2,... license plate number n, and require the final result to be written as This is the case in the text file. There are no spaces, line breaks, etc. My previous

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Introduction: The database is informix, the encoding is iso-8859-1, and the php encoding is gbk. I tried various ways to convert it online, but nothing worked. The code is as follows, where $licenseno is the license plate number, and the province abbreviation in the middle is a Chinese character. ``` $sql.="and b.licenseno = "".$licenseno."""; ``` will return the following error: ``` Warning: odbc_exec() [function.odbc-exec]: SQL error: [Informix][In

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