METHOD AND IMAGE PROCESSING SYSTEM FOR REMOVING A VISUAL OBJECT FROM AN IMAGE

摘要

A method and image processing system for removing a visual object from an image, e.g., a moving image, is described. An image is provided in which a visual object to be removed is selected, for which a mask is determined. Pixels outside the mask that are intended to be used for replacing pixels inside the mask are selected, based on a similarity measure, comprising an appearance similarity measure representing the visual similarity between a previously selected pixel for replacing the pixel to be replaced and the pixel to be selected, and a geometry similarity measure, representing the closeness of the pixel to be selected to the pixel among the pixels outside the mask that was previously used for replacing the pixel adjacent to the pixel to be replaced. The pixels inside the mask are replaced by copying the properties of the selected pixels to the respective pixels to be replaced.

主权项

1. A method for removal of a visual object from an image, comprising the following steps:
providing an image having pixels in at least two dimensions; selecting a visual object to be removed in the image; determining a mask for the selected visual object; selecting of pixels outside the mask which are to be used for the replacement of pixels inside the mask, wherein the selection of the pixels is decided by means of a similarity measure, which comprises an appearance similarity measure, representing the visual similarity between a previously selected pixel for replacement of the pixel being replaced and the pixel being replaced, wherein the similarity measure furthermore comprises a geometry similarity measure, representing the proximity of the pixel being selected to that one of the pixels outside the mask that was used previously for replacement of the pixel neighboring the pixel being replaced; and replacing of the pixels inside the mask by copying the properties of the selected pixels onto the pixels being replaced.