OpenCV Image Manipulation

Cvabs	Calculates the absolute value of all elements in an array
Cvabsdiff	Calculates the absolute value of a two array difference
Cvabsdiffs	Computes the absolute value of an array and a scalar difference
Cvadd	Two array of element-level add operations
Cvadds	An array and a scalar element-level add-on operation
cvaddweighted	Weighted addition of two elements of an array (Alpha fusion)
Cvavg	Calculates the average of all elements of an array
Cvavgsdv	Calculates the absolute and standard deviations of all elements in an array
Cvcalccovarmatrix	Computes the covariance of a set of n-dimensional space vectors
cvcmp	Applies a set comparison operation to all elements in two arrays
Cvcmps	Comparison of array and scalar application settings
Cvconvertscale	To convert an array element type with an optional scale value
Cvconvertscaleabs	Computes the absolute value of an optional scale after the type of the array element is converted
Cvcopy	Copy the values in the array to another array
Cvcountnonzero	Count the number of non-0 values in an array
Cvcrossproduct	Calculates the vector product (cross product) of two three-dimensional vectors
Cvcvtcolor	Convert an array channel from one color space to another color space
Cvdet	Calculating determinant of square matrix
Cvdiv	Element-level division of an array with another array
Cvdotproduct	Calculates the dot product of two vectors
Cveigenvv	Calculating the eigenvalues and eigenvectors of a square matrix
Cvflip	Flips around the selected axis
Cvgemm	Matrix multiplication
Cvgetcol	Copy an element from a column in an array
Cvgetcols	Copy elements from adjacent multiple columns of data
Cvgetdiag	Copy all the elements on the diagonal in the array
Cvgetdims	Returns the number of dimensions of an array
Cvgetdimsize	Returns all dimension sizes for an array
Cvgetrow	Copy an element from a row in an array
Cvgetrows	Copy an element from multiple adjacent rows in an array
Cvgetsize	Get the dimensions of the two-dimensional array, one cvsize return
Cvgetsubrect	Copy element values from a sub-region of an array
Cvinrange	Checks whether an array's elements are within the range of values in the other two arrays
Cvinranges	Checks if the elements of an array are within the range of the other two scalars
Cvinvert	Finding the transpose of matrices
Cvmahalonobis	Calculates the Markov distance between two vectors
Cvmax	Take the maximum action of element level in two arrays
Cvmaxs	Take the maximum action of an element level in an array and a scalar
Cvmerge	Combine several single-channel images into one multi-channel image
Cvmin	Take a minimum of element-level operations in two arrays
Cvmins	Take the minimum action of element level in an array and a scalar
Cvminmaxloc	Find the maximum minimum value in an array
Cvmul	Calculates the product of two array element levels
Cvnot	Negation of each element in a bitwise array
Cvnorm	Calculates the normal correlation of two arrays
Cvnormalize	Normalization of elements in an array
Cvor	Bitwise OR operation on two array elements
Cvors	Bitwise OR operation between an array and a scalar
Cvreduce	Reduction of two-dimensional arrays to vectors by a given operator
Cvrepeat	Copying arrays in a tiled manner
Cvset	Initializes an array with the given value
Cvsetzero	Initializes all elements in the array to 0
Cvsetidentity	Sets the element on the diagonal of the array to 1, the other 0
Cvsolve	Find out the solution of linear equation
Cvsplit	Splitting a multichannel array into a channel array
Cvsub	Two subtraction of array element levels
Cvsubs	Subtract scalar from an array at the element level
Cvsubrs	Subtract an array from a scalar at the element level
Cvsum	Sum all elements in an array
Cvsvd	Singular value decomposition of two-dimensional matrices
Cvsvbksb	The calculation of singular value back-generation
Cvtrace	Calculate Matrix Traces
Cvtranspose	Transpose operations of matrices
Cvxor	Bitwise XOR of two arrays
Cvxors	Comforting xor between arrays and scalars
Cvzero	Set the elements in all arrays to 0

OpenCV Image Manipulation