Bayer format image interpolation method based on improved edge orientation

The invention relates to a Bayer format image interpolation method based on improved edge orientation. Firstly, reconstruction is carried out by using edge-oriented interpolation in a Bayer pixel array, so that a third component, first and second pixels of which are missing, is obtained; then, on the basis of the this component, reconstruction is respectively carried out on second and first interpolation point pixels through edge-oriented interpolation, so that first and second components are obtained; and finally, on the basis of the first and second components, reconstruction is carried outthrough edge-oriented interpolation, so that second and first components, third colour pixels of which are missing, are obtained. According to the bayer format image interpolation method based on improved edge orientation disclosed by the invention, the correlation among various colour channels and the edge-oriented interpolation idea are utilized; an interpolation method and a traditional edge-oriented interpolation meth