Image processing apparatus, method thereof, program, and image capturing apparatus

摘要

An image processing apparatus stores model information representing a subject model belonging to a specific category, detects the subject from an input image by referring to the model information, determines a region for which an image correction is to be performed within a region occupied by the detected subject in the input image, stores, for a local region of the image, a plurality of correction data sets representing correspondence between a feature vector representing a feature before correction and a feature vector representing a feature after correction, selects at least one of the correction data sets to be used to correct a local region included in the region determined to undergo the image correction, and corrects the region determined to undergo the image correction using the selected correction data sets.

主权项

1. An image processing apparatus comprising:
a model storage unit configured to store model information representing a subject model belonging to a specific category, the model information including location information of a part of the subject model; a detection unit configured to detect a first region of the subject from an input image by referring to the model information and to detect a second region of the part of the subject, corresponding to the part of the subject model, in the first region by referring to the model information; a determination unit configured to determine a partial image for which an image correction is to be performed, the partial image including at least the detected first region of the subject in the input image; a correction data set storage unit configured to store a plurality of correction data sets, each of the plurality of correction data sets including a plurality of first partial images being based on an image including a subject and feature vectors of second partial images being generated by processing the first partial images; a selection unit configured to select, from said correction data set storage unit, at least one of the correction data sets on the basis of relative position between the partial image determined by said determination unit and the second region; an extraction unit configured to extract a feature vector from the partial image determined by said determination unit; a calculation unit configured to calculate degrees of similarities between the feature vector extracted by said extraction unit and feature vectors of the second partial images in the selected correction data set; and a correction unit configured to select at least one feature vector of the second partial image on the basis of the calculated degrees of similarities and correct the partial image determined by said determination unit using the first partial image corresponding to the selected feature vector of the second partial image.