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4.1 Signature

Whole Image Matching is done through Image Signature. An image has a set of computed values called features. A collection of features is grouped into a signature.

This section introduces Image Signature interface. An Image Signature consists of the following attributes:

Name (For example, xyz.jpg)

Path (c:\abc\)

Attribute1

Attrabute2

…

The interface for Image Signature is:

public interface I_ImageSignature

{

int getStatus ();

string getID();

string getImageName ();

string getImagePath();

string getAbsolutePath ();

int getNumberOfAttributes ();

int [] getSignatureAttributes();

int getSignatureAttributes (int index);

string toString ();

}

The following table lists the functions.

Function	Descriptions
int getStatus ()	Returns the status associated with the signature. Output: 1: signature ready. 0: signature not ready. -1: no image -2: image segmentation specification error -3: other error.
string getID()	Returns the ID associated with the signature. Output: image ID.
string getImageName ()	Returns the image name associated with the signature. Output: image name.
string getImagePath()	Returns the image path associated with the signature. Output: image path.
string getAbsolutePath ()	Returns the absolute path associated with the signature. Output: image absolute path.
int getNumberOfAttributes ()	Returns the number of attributes associated with the signature. Output: number of attributes.
int [] getSignatureAttributes()	Returns the attribute array associated with the signature. Output: attribute array.
int getSignatureAttributes() (int index)	Returns the attribute associated with the input index. Input: index. Output: attribute associated with the input index.
string toString ()	Returns the entire image signature as a string with fields separated by Tab.

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