Image processing apparatus, image processing method and computer program

A method of processing an image for performing identification processing of an input face image in an image processing apparatus, the method comprising the steps of:

• converting an image by an image conversion section receiving input of the face image to be identified, executing image conversion on the input face image, and performing normalization processing into an image having a predetermined setting;
• calculating similarities, by a similarity calculation section, between a feature quantity obtained from the converted input image in the step of converting an image and a feature quantity of a registered image;
• and
• matching determining by a matching determination section determining whether the input face image matches the registered face image on the basis of the similarities calculated by the step of calculating similarities,
• wherein the step of converting an image includes executing the normalization processing by image conversion processing using a center of right and left eyes of the input face image as an origin.

A computer program for causing an image processing apparatus to perform identification processing of an input face image, the computer program comprising the steps of:

• converting an image by an image conversion section receiving input of the face image to be identified, executing image conversion on the input face image, and performing normalization processing in an image having a predetermined setting;
• calculating similarities, by a similarity calculation section, between a feature quantity obtained from the converted input image in the step of converting an image and a feature quantity of a registered image;
• and
• matching determining by a matching determination section determining whether the input face image matches the registered face image on the basis of the similarities calculated by the step of calculating similarities,
• wherein the step of converting an image includes executing the normalization processing by image conversion processing using a center of right and left eyes of the input face image as an origin.

An image processing apparatus for performing identification processing of an input face image, comprising:

• an image conversion section receiving input of the face image to be identified, executing image conversion on the input face image, and performing normalization processing into an image having a predetermined setting;
• a similarity calculation section calculating similarities between a feature quantity obtained from the converted input image in the image conversion section and a feature quantity of a registered image;
• and
• a matching determination mechanism determining whether the input face image matches the registered face image on the basis of the similarities calculated by the similarity calculation section,
• wherein the image conversion section executes the normalization processing by image conversion processing using a center of right and left eyes of the input face image as an origin.