利用比湿和温度计算相对湿度的函数是qair2rh(qair, temp, press=1013.25),三个参数分别是比湿.温度和气压,气压有一个缺省值1013.25,因此计算地面相对湿度的时候也可以不给气压参数.下面的例子打开CFS模式的地面结果,并从比湿和温度数组计算出相对湿度数组并绘图.脚本程序: #Open and read data fn = 'U:/data/climate/CFS/20150712/flxf2015081500.01.2015071200.grb2' f = add
Euclidean distance map(EDM)这个概念可能听过的人也很少,其主要是用在二值图像中,作为一个很有效的中间处理手段存在.一般的处理都是将灰度图处理成二值图或者一个二值图处理成另外一个二值图,而EDM算法确是由一幅二值图生成一幅灰度图.其核心定义如下: The definition is simple enough: each point in the foreground is assigned a brightness value equal to its straight
Cows Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 7038 Accepted: 3242 Description Your friend to the south is interested in building fences and turning plowshares into swords. In order to help with his overseas adventure, they are f