Patent
Image enhancement processing method and apparatus for distortion correction by air particle like fog
TLDR
In this paper, an image enhancement method and an apparatus for distortion correction by air particle like fog are provided to effectively eliminate scattered light into the air, where the scattered light map generation part(120) creates the atmosphere scattered light maps based on the average of the first brightness signal and rate of the standard deviation.Abstract:
PURPOSE: An image enhancement processing method and an apparatus for distortion correction by air particle like fog are provided to effectively eliminate scattered light into the air. CONSTITUTION: The scattered light map generation part(120) creates the atmosphere scattered light map based on the average of the first brightness signal and rate of the standard deviation. The subtraction unit(130) subtracts scattered light map from the brightness signal of Y/C transform unit(110). The edge enhancement part(140) performs the edge enhancement processing toward the brightness signal of the subtraction unit. The post processing unit(160) performs the histogram stretching about the RGB signal of the RGB transform unit(150).read more
Citations
More filters
Patent
Image-processing apparatus for removing haze contained in video, and method therefor
TL;DR: In this article, an image processing apparatus includes a haze brightness measurer to measure haze brightness in an image containing haze, a transmission estimator to estimate a blockwise transmission for generating a least final cost function value that is calculated by using a contrast, an image loss and a time loss of the image and an image reconstructor to reconstruct the image by using the measured haze brightness and the estimated pixelwise transmission.
Patent
Apparatus and method of processing image
TL;DR: An image processing apparatus and method for restoring an image which is expected to be when there is no fog from a foggy image, is described in this article, where the image processing method including: generating a pixel depth image of the fog-gy image by estimating a plurality of pixel depths of a pluralityof pixels, respectively, included in the fogy image based on a channel difference between at least two of red (R), green (G), and blue (B) channels.
Patent
Apparatus for improving fogged image using user-controllable root operator
Sung Hoon Hong,Jae Won Lee +1 more
TL;DR: In this paper, an apparatus for improving fogged image using user-controllable root operator comprises an atmosphere brightness value calculation unit for receiving a fogged input image and calculating the value of the brightest pixel of the atmosphere, a transmission computation unit for calculating the lower bound of transmission rate by using the pixel value calculated by the atmosphere brightness values calculation unit and the fog-eliminated input image.
Patent
Apparatus and method for removing fog in image
TL;DR: In this paper, a method for removing fog in an image capable of providing a defogged image without a sense of difference by adaptively controlling defogging parameters in response to a density of fog to remove fog.
Patent
Defogging system and defogging method
Jeon Seong Ha,Young Je Jung +1 more
TL;DR: In this article, the authors present a defogging system consisting of an illuminance sensor, a level determiner and a defogger that adaptively defog the input image according to the determined fog state and defogging level.