cv::img_hash Namespace Reference

Classes
class	AverageHash
	Computes average hash value of the input image. More...
class	BlockMeanHash
	Image hash based on block mean. More...
class	ColorMomentHash
	Image hash based on color moments. More...
class	ImgHashBase
	The base class for image hash algorithms. More...
class	MarrHildrethHash
	Marr-Hildreth Operator Based Hash, slowest but more discriminative. More...
class	PHash
	pHash More...
class	RadialVarianceHash
	Image hash based on Radon transform. More...

Enumerations
enum	BlockMeanHashMode {   BLOCK_MEAN_HASH_MODE_0 = 0 ,   BLOCK_MEAN_HASH_MODE_1 = 1 }

Functions
void	averageHash (cv::InputArray inputArr, cv::OutputArray outputArr)
	Calculates img_hash::AverageHash in one call.
void	blockMeanHash (cv::InputArray inputArr, cv::OutputArray outputArr, int mode=BLOCK_MEAN_HASH_MODE_0)
	Computes block mean hash of the input image.
void	colorMomentHash (cv::InputArray inputArr, cv::OutputArray outputArr)
	Computes color moment hash of the input, the algorithm is come from the paper "Perceptual Hashing for Color Images Using Invariant Moments".
void	marrHildrethHash (cv::InputArray inputArr, cv::OutputArray outputArr, float alpha=2.0f, float scale=1.0f)
	Computes average hash value of the input image.
void	pHash (cv::InputArray inputArr, cv::OutputArray outputArr)
	Computes pHash value of the input image.
void	radialVarianceHash (cv::InputArray inputArr, cv::OutputArray outputArr, double sigma=1, int numOfAngleLine=180)
	Computes radial variance hash of the input image.