1. An electronic still camera including: light measuring means for light-measuring a plurality of portions of an object to be photographed and outputting a plurality of signals corresponding to quantities of light of said portions; image pickup means for converting an image of the object to be photographed into an image signal; contour enhancing means connected to said image pickup means and provided with a plurality of selectable contour enhancement degrees for enhancing the contour of said image signal; and selecting means connected to said light measuring means and to said contour enhancing means and using signals output from said light measuring means for detecting a difference between brightness in two portions among said plurality of portions of the object, comparing said difference with a reference level and selecting one of said plurality of contour enhancement degrees provided in said contour enhancing means according to the result of the comparing.