Patent ID: 7973829
Filing Date: 2011-07-05
Classification: H04N

Abstract:
1. An image sensing apparatus having at least a filter insertion/removal device which is operated by a user and inserts and removes an optical filter for reducing a light quantity to an image sensing element serving as an optical system, comprising: a signal processing device which performs signal processing so as to generate image data from an image sensing signal output from the image sensing element; a brightness value calculation device which calculates a brightness value representing a brightness of part or all of an object which is imaged on the image sensing element; a brightness value correction device which calculates a second brightness value by correcting a first brightness value on the basis of a difference between the first brightness value and a light reduction amount generated by inserting the optical filter by the filter insertion/removal device operated by the user, wherein the first brightness value is calculated by said brightness value calculation device in a case that the optical filter is inserted by the filter insertion/removal device operated by the user; and a control device which controls the signal processing in said signal processing device by using the second brightness value.