## OpenCV学习笔记（矩阵和图象操作）

2011-03-22

 函数 Description 说明 cvAdd Elementwise addition of two arrays 两个数组对应元素的和 cvAddS Elementwise addition of an array and a scalar 一个数组和一个标量对应元素的和 cvAddWeighted Elementwise weighted addition of two arrays (alpha blending) 两个数组对元素的加权求和（alpha混合） cvSub Elementwise subtraction of one array from another 把两个数组的对应元素相减 cvSubS Elementwise subtraction of a scalar from an array 把一个数组的元素减去一个标量 cvSubRS Elementwise subtraction of an array from a scalar 把一个标量减去一个数组中的元素 cvMul Elementwise multiplication of two arrays 两个数组对应元素的乘法 cvDotProduct Compute dot product of two vectors 计算两个向量的点乘 cvCrossProduct Compute cross product of two three-dimensional vectors 对两个三维向量做叉乘 cvGEMM Generalized matrix multiplication 广义矩阵的乘法 cvDiv Elementwise division of one array by another 一个数组和另一个数组对应元素的除法 cvAbs Absolute value of all elements in an array 数组中所有元素的绝对值 cvAbsDiff Absolute value of diff erences between two arrays 两个数组差值的绝对值 cvAbsDiffS Absolute value of diff erence between an array and a scalar 一个数组和一个标量的差值的绝对值 cvMin Elementwise min operation on two arrays 对两个数组中的对应元素做最小值操作 cvMinS Elementwise min operation between an array and a scalar 一个数组的元素和一个向量做最小值操作 cvMax Elementwise max operation on two arrays 对两个数组中的对应元素做最大值操作 cvMaxS Elementwise max operation between an array and a scalar 一个数组的元素和一个向量做最大值操作 cvMinMaxLoc Find minimum and maximum values in an array 寻找数组中的最大值和最小值 cvAvg Average value of all elements in an array 数组中所有元素的平均值 cvAvgStd Absolute value and standard deviation of all elements in an array 数组中所有元素的平均值和标准差 cvSum Sum all elements of an array 对数组的所有元素求和 cvCountNonZero Count nonzero elements in an array 对数组中非零元素计数 cvGetRow Copy elements from row slice of an array 拷贝数组中一行元素 cvGetRows Copy elements from multiple adjacent rows of an array 拷贝数组中相邻的多行元素 cvGetCol Copy elements from column slice of an array 拷贝数组中一列元素 cvGetCols Copy elements from multiple adjacent columns of an array 拷贝数组中相邻的多列元素 cvGetSubRect Copy elements from subregion of an array 拷贝一个数组中子区域的元素 cvGetDiag Copy elements from an array diagonal 拷贝数组对角线元素 cvAnd Elementwise bit-level AND of two arrays 把两个数组的对应元素做位与操作 cvNot Bitwise inversion of every element of an array 对数组中每个元素逐位取反 cvOr Elementwise bit-level OR of two arrays 把两个数组的对应元素做位取反 cvOrS Elementwise bit-level OR of an array and a scalar 把一个数组中的元素和一个标量取反 cvXor Elementwise bit-level XOR between two arrays 把两个数组中的对应元素做异或运算 cvXorS Elementwise bit-level XOR between an array and a scalar 把一个数组中的元素和一个标量做异或运算 cvGetDims Return the number of dimensions of an array 返回数组的维数 cvGetDimSize Return the sizes of all dimensions of an array 返回数组所有维的尺寸 cvGetSize Get size of a two-dimensional array and return as CvSize 获取二维数组的尺寸，返回一个CvSize结构 cvCopy Copy elements of one array to another 把一个数组中的元素拷贝到另一个数组 cvRepeat Tile the contents of one array into another 把一个数组的内容铺到另一个中 cvSplit Split a multichannel array into multiple single-channel arrays 把一个多通道数组分解为多个单通道数组 cvMerge Merge several single-channel images into one multichannel image 把数个单通道图象合并为一个多通道图象 cvCvtColor Convert channels of an array from one color space to another 把数组中通道从一个色彩空间转换到另一个色彩空间 cvReduce Reduce a two-dimensional array to a vector by a given operation 根据一个给定操作，把一个二维数组缩减为一个向量 cvConvertScale Convert array type with optional rescaling of the value cvConvertScaleAbs Convert array type after absolute value with optional rescaling cvSet Set all elements of an array to a given value 把数组中所有元素赋一个给定的值 cvSetZero Set all elements of an array to 0 把数组中所有元素赋值为0 cvZero Set all elements of an array to 0 把数组中所有元素置0 cvFlip Flip an array about a selected axis 把数组相对一个选定的轴做翻转 cvNormalize Normalize elements in an array to some value 把数组中的元素规一化到某一值 cvTranspose Transpose all elements of an array across the diagonal 把所有元素相对对角线转置 cvSetIdentity Set all elements of an array to 1 for the diagonal and 0 otherwise 对数组的对角线元素赋1，其它的为0 cvCalcCovarMatrix Compute covariance of a set of n-dimensional vectors 一组n维向量的协方差 cvDet Compute determinant of a square matrix 计算一个方阵行列式的值 cvEigenVV Compute eigenvalues and eigenvectors of a square matrix 计算一个方阵的特征值和特征向量 cvInvert Invert a square matrix 计算方阵的逆矩阵 cvMahalonobis Compute Mahalonobis distance between two vectors 计算两个向量的马氏距离（ Mahalonobis distance） cvNorm Compute normalized correlations between two arrays 计算两相数组的规一化系数 cvSVD Compute singular value decomposition of a two-dimensional array 计算一个二维数组的奇异值分解 cvSVBkSb Compute singular value back-substitution 计算奇异值回代 cvTrace Compute the trace of an array 计算数组的迹 cvSolve Solve a system of linear equations 求解一个线性方程 cvInRange Test if elements of an array are within values of two other arrays 测试一个数组中的元素的值是否在另两个数组的值之间 cvInRangeS Test if elements of an array are in range between two scalars 测试一个数组上的元素是否在两个标量之间 cvCmp Apply selected comparison operator to all elements in two arrays 对两个数组中所有元素进行选中的比较操作 cvCmpS Apply selected comparison operator to an array relative to a scalar 一个数组和一个标量之间进行选中的比较操作

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