PHP Class Jenssegers\ImageHash\ImageHash

Protected Properties

Property	Type	Description
$implementation	Jenssegers\ImageHash\Implementation	The hashing implementation.

Method	Description
__construct ( Jenssegers\ImageHash\Implementation $implementation = null, string $mode = self::HEXADECIMAL )	Constructor.
compare ( mixed $resource1, mixed $resource2 ) : integer	Compare 2 images and get the hamming distance.
distance ( integer $hash1, integer $hash2 ) : integer	Calculate the Hamming Distance.
hash ( mixed $resource ) : integer	Calculate a perceptual hash of an image file.
hashFromString ( mixed $data ) : string	Calculate a perceptual hash of an image string.

Method	Description
createResource ( string $data ) : resource	Get a GD2 resource from string.
destroyResource ( resource $resource )	Destroy GD2 resource.
formatHash ( integer $hash ) : string \| integer	Format hash in hex.
loadImageResource ( string $file ) : resource	Get a GD2 resource from file.

Constructor.

public __construct ( Jenssegers\ImageHash\Implementation $implementation = null, string $mode = self::HEXADECIMAL )
$implementation	Jenssegers\ImageHash\Implementation
$mode	string

Compare 2 images and get the hamming distance.

public compare ( mixed $resource1, mixed $resource2 ) : integer
$resource1	mixed
$resource2	mixed
return	integer

Get a GD2 resource from string.

protected createResource ( string $data ) : resource
$data	string
return	resource

Destroy GD2 resource.

protected destroyResource ( resource $resource )
$resource	resource

Calculate the Hamming Distance.

public distance ( integer $hash1, integer $hash2 ) : integer
$hash1	integer
$hash2	integer
return	integer

Format hash in hex.

protected formatHash ( integer $hash ) : string \| integer
$hash	integer
return	string \| integer

Calculate a perceptual hash of an image file.

public hash ( mixed $resource ) : integer
$resource	mixed	GD2 resource or filename
return	integer

Calculate a perceptual hash of an image string.

public hashFromString ( mixed $data ) : string
$data	mixed	Image data
return	string

Get a GD2 resource from file.

protected loadImageResource ( string $file ) : resource
$file	string
return	resource

The hashing implementation.

protected Implementation,Jenssegers\ImageHash $implementation
return	Jenssegers\ImageHash\Implementation