In an image processing apparatus processing digitized image data taken by a digital
camera, or the like, an image focused on an image pickup device is divided into
a plurality of rectangular regions. A value of the lightness with respect to each
rectangular region and a distribution of the color saturation are calculated by
using image data. The scene of the image is judged whether it is backlighted or
not by using a number of the rectangular regions having the value of the lightness
equal to or larger than a threshold value. When the scene is judged as the backlight
scene, it is further judged whether it is actually backlighted or not by using
the distribution of the color saturation.