US Patent 7580064 Digital still camera and image correction method

A digital camera that corrects a captured image. A memory for storing the image data of an image for which tone correction is to be performed in a standard color space format. A tone correction circuit for performing tone correction. The image data is read out from the memory, and the tone correction is performed. In automatic tone correction, luminance signals of the image are statistically analyzed to categorize the image, and an appropriate correction curve is used to correct the image.