Patent ID: 8610770

Claim:
An image sensing apparatus comprising: an image sensing unit configured to sense an image sensing target which has a defective portion region; an image sensing condition change unit configured to change an image sensing condition while the image sensing unit senses the image sensing target; a calculation unit configured to calculate first and second evaluation values corresponding to contrast between the defective portion region of the sensed image and a region other than the defective portion region of the sensed image; a first control unit configured to operate the image sensing unit and the calculation unit at a predetermined interval in parallel with operation of the image sensing condition change unit, and to control the calculation unit to calculate the first evaluation value of the sensed image; a second control unit configured to operate the image sensing unit and the calculation unit within a range where the first evaluation value obtained by the operation of the first control unit changes from increase to decrease at an interval smaller than the predetermined interval, in parallel with operation of the image sensing change unit, and to control the calculation unit to calculate the second evaluation value of the sensed image; and an image sensing condition setting unit configured to set the image sensing condition based on the second evaluation value obtained by the operation of the second control unit.