Apparatus and method for prediction modes selection based on image direction information

摘要

An image coding apparatus determines an image pattern of image data and, based on the determined image pattern, selects a prediction mode for generating predicted pixel values by predicting pixel values in a frame using pixel values in the same frame. Alternatively, based on photographing information concerning input image data, an image coding apparatus selects a prediction mode for generating predicted pixel values by predicting pixel values in a frame using pixel values in the same frame.

主权项

1. An image coding apparatus comprising:
an input unit configured to input image data to be coded, wherein the image data is generated by an image capture apparatus; an acquisition unit configured to acquire photographing information indicating a focus operating condition when an image corresponding to the image data being captured by the image capture apparatus; an intra prediction unit which performs an intra prediction corresponding to n prediction directions of which each of the prediction directions of pixels is different; and a selection unit configured to select a non-direction prediction instead of the n prediction directions to perform the intra prediction in a case that the photographing information indicates that out-of-focusing is on.