IMAGE PROCESSING APPARATUS AND METHOD THEREOF

摘要

An image processing method includes dividing an image into one or more regions, obtaining a region-based histogram smoothing function for processing the image to have a uniform number of pixels based on a pixel value for each of the divided region, obtaining a global smoothing function for an entire image using the obtained region-based histogram smoothing function, obtaining a local smoothing function for each pixel of the image using the region-based histogram smoothing function applied to a region in a block, and obtaining a sum of weight values of the global smoothing function and the local smoothing function, and determining the pixel value, based on the obtained sum of the weight values.

主权项

1. An image processing method comprising:
dividing an image into at least one region; obtaining a region-based histogram smoothing function for processing the image to have a uniform number of pixels based on a pixel value for each region of of the divided image; obtaining a global smoothing function for an entire region of the image by using the obtained region-based histogram smoothing function of each region in the divided image; obtaining a local smoothing function for each pixel in the image by using the region-based histogram smoothing function which is applied to a region included in a block; determining a sum of weight values of the global smoothing function and the local smoothing function; and determining the pixel value for said each region of the divided image, based on the determined sum of the weight values.