Patent ID: 8456541
Filing Date: 2013-06-04
Classification: H04N

Abstract:
1. An image processing apparatus that expands dynamic range by combining a plurality of image signals, the apparatus comprising: an image signal acquiring unit configured to acquire a plurality of image signals having different exposure levels; a low-frequency-image signal generating unit configured to generate a plurality of low-frequency image signals by extracting low-frequency components from each of the image signals; a combined-low-frequency-signal generating unit configured to combine the plurality of low-frequency image signals to generate a combined low-frequency image signal; an extracting unit configured to extract a single image signal from the plurality of image signals; a high-frequency-image signal generating unit configured to extract a high-frequency component from only the single image signal to generate a high-frequency image signal; and an image combining unit configured to generate a combined image signal by combining the combined low-frequency image signal and the high-frequency image signal extracted from only the single image signal.