IMAGE CAPTURING APPARATUS, CONTROL METHOD THEREFOR, PROGRAM, AND STORAGE MEDIUM
First Claim
1. An image capturing apparatus comprising:
- an image sensor which photo-electrically converts an image of an image sensing field formed by a photographing optical system;
an extracting unit which extracts a part of the video image generated upon being photo-electrically converted by said image sensor;
an adding unit which adds signals of respective pixels, the number of which corresponds to a luminance of the image sensing field, of a plurality of pixels of said image sensor; and
a limiting unit which limits an extraction range of the video image extracted by said extracting unit, in accordance with the number of pixels added by said adding unit.
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Abstract
This invention can appropriately control the relationship between the electronic zoom magnification and the resolution of a displayed image in electronic zoom. An image capturing apparatus includes an image sensor which photo-electrically converts an image of an image sensing field formed by a photographing optical system, an extracting unit which extracts a part of the video image generated upon being photo-electrically converted by the image sensor, an adding unit which adds signals of respective pixels, the number of which corresponds to the luminance of the image sensing field, of a plurality of pixels of the image sensor, and a limiting unit which limits the extraction range of the video image extracted by the extracting unit, in accordance with the number of pixels added by the adding unit.
14 Citations
7 Claims
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1. An image capturing apparatus comprising:
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an image sensor which photo-electrically converts an image of an image sensing field formed by a photographing optical system; an extracting unit which extracts a part of the video image generated upon being photo-electrically converted by said image sensor; an adding unit which adds signals of respective pixels, the number of which corresponds to a luminance of the image sensing field, of a plurality of pixels of said image sensor; and a limiting unit which limits an extraction range of the video image extracted by said extracting unit, in accordance with the number of pixels added by said adding unit. - View Dependent Claims (2, 3, 4)
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5. A method of controlling an image capturing apparatus including an image sensor which photo-electrically converts an image of an image sensing field formed by a photographing optical system, the method comprising:
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an extracting step of extracting a part of the video image generated upon being photo-electrically converted by the image sensor; an adding step of adding signals of respective pixels, the number of which corresponds to a luminance of the image sensing field, of a plurality of pixels of the image sensor; and a limiting step of limiting an extraction range of the video image extracted in the extracting step, in accordance with the number of pixels added in the adding step. - View Dependent Claims (6, 7)
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Specification