Patent ID: 7689065

Claim:
An image processing method comprising: using an image processing apparatus to perform the following steps: a first acquisition step of acquiring, by using an image input unit, first image data of an inputted image at a first resolution; a storage step of extracting first low-frequency components of luminance values from the first image data, and storing the extracted first low-frequency components in a memory; a second acquisition step of acquiring second image data of each of divided areas into which the inputted image is divided, said second image data being acquired at a second resolution higher than the first resolution; a low-frequency extraction step of extracting a second low-frequency components of luminance values from the second image data; an image processing step of performing image processing for the second image data, using both the extracted second low-frequency components and low-frequency components of an area corresponding to the divided area in the inputted image among the first low-frequency components stored in the memory, wherein the second acquisition step, the low-frequency extraction step, and the image processing step are performed in sequence for each of the divided areas.