An imaging device is configured to include a dividing unit which divides a generated image into blocks, a white balance evaluation value acquiring unit which acquires color information and a white balance evaluation value of each block, a classifying unit which combines the blocks into areas based on the color information, a correction coefficient calculating unit which calculates a white balance correction coefficient for each of the areas, a white balance setting unit which sets the calculated white balance correction coefficient for each of the areas, and a green area determining unit which determines whether or not each of the blocks is a green area based on the color information. The white balance setting unit sets a different white balance correction coefficient for a block determined as a green area from the one set for the area including the block in question.