Image signal processing apparatus, imaging apparatus, image signal processing method and computer program

摘要

There is provided an image signal processing apparatus, comprising a demosaic processing unit receiving input of mosaic image data of each of signals obtained by a single plate imaging device having an element array composed of visible light obtaining elements obtaining visible light signals, and invisible light obtaining elements obtaining signals including invisible light components, and generating a demosaic image of each of the obtained signals; and a noise reduction processing unit receiving input of the demosaic image to execute correction of pixel values of the demosaic image obtained by the visible light obtaining elements on the basis of edge information extracted from the demosaic image of the signals obtained by the invisible light obtaining elements.

主权项

1. An image signal processing apparatus, comprising:
a noise reduction processing unit that:
establishes weights for first pixel values of a first demosaic image based on edge information extracted from a second demosaic image;generates second pixel values for the first demosaic image based on an application of the established weights to corresponding ones of the first pixel values; a speculum detecting unit that establishes an evaluation result based on differences in the second pixel values and differences in third pixel values of the second demosaic image; a first blend execution unit that generates output image data based on the evaluation result and a product of the second pixel values and fourth pixel values generated through an application of a filter to the third pixel values; and a second blend execution unit generating visible output image data based on the evaluation result and the generated output image data.