1. An image capturing apparatus comprising: an image sensor for converting a subject image into an image signal; a movement detector for detecting a movement of said image capturing apparatus relative to the subject; an exposure controller for interrupting exposure of said image sensor when a movement is detected by said movement detector during exposure of said image sensor to light; a first image generator for generating first image data by amplifying an image signal read out from said image sensor of which exposure is interrupted by said exposure controller; and a second image generator for extracting luminance information from said first image data, extracting color information from second image data obtained from said image sensor at a timing different from the timing at which said first image is obtained, and generating image data obtained by synthesizing said luminance information and said color information.