User definable windows for selecting image processing regions

Image analysis – Image transformation or preprocessing – Selecting a portion of an image

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382199, G06K 920

Patent

active

060978538

ABSTRACT:
A system and methods for creating user definable windows for applying image processing, particularly useful in a post-production color correction equipment. The luminance values of a key image are captured in a key frame buffer. The key image is edited in a "paint" mode to enhance the luminance values or eliminate regions of the image, to define a region of interest. The key image is then converted to a 1-bit image. The 1-bit image is vectorized to derive a user defined window. The user defined window, comprising a closed polygon, is converted on a frame-by-frame basis to a bit map matte that is keyed with image processing such as color correction values. The user defined windows can be edited and stored and recalled for use in other frames. A user defined window for a first frame of a scene can be transformed or morphed into a user defined window for a final frame of a scene, with the system automatically interpolating between the beginning window and the ending window so that the window is automatically moved, resized, and changed in geometry during the succession of frames in a scene.

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