Patent ID: 7830420

Claim:
A composite image data generating apparatus, comprising: an image data synthesis device that synthesizes applied high-sensitivity image data and applied low-sensitivity image data at a ratio determined on a basis of a dynamic range to output composite image data; a histogram data generation device that generates histogram data representing a histogram of a composite image represented by the composite image data outputted from said image data synthesis device; a display control device that controls a display device so as to display the composite image represented by the composite image data outputted from said image data synthesis device and the histogram generated by said histogram data generation device; a dynamic range designation device that designates the dynamic range; and a synthesis control device that controls said image data synthesis device so as to synthesize the applied high-sensitivity image data and the applied low-sensitivity image data in response to a change in the dynamic range by said dynamic range designation device at a ratio determined on a basis of the changed dynamic range, wherein said display control device controls the display device to display dynamic ranges corresponding to preset recording applications, in which each preset recording application has corresponding dynamic range values associated with said preset recording application, wherein said dynamic range designation device designates the dynamic range in the dynamic ranges suitable for a recording application displayed on the display device,and wherein dynamic ranges not corresponding to said each preset recording application are other than displayed.