[PDF] Top 20 Adaptive Image Dehazing via Improving Dark Channel Prior

... the dark channel of the hazy image is ...hazy image is segmented into the smooth and non- smooth ...the dark channel, the pixels values for smooth regions are reduced by dividing ... See full document

... Dr. N. Venkatram received the Ph. D degree from Acharya Nagarjuna University, India. He is currently working as Dean Academics (I/C) and also as a professor for the Department of Electronics and Computer Engineering in ... See full document

... a dark channel prior for dehazing the natural ...images. Dark channel having minimum intensity value on image patch among three (R, G, B) color ...and image ... See full document

... Fog removal is also known as Visibility Restoration. Removing haze and fog is a part of de-weathering problem. De-hazing is done to restore the clarity of scene by improving the contrast of images. Proposed ... See full document

... example image when the test station was sunny without haze and Figure 2b shows an example image with fog and haze in the test ...haze, image clarity was reduced by the impact of ... See full document

... developing dehazing using single ...based dehazing technique using single ...single image-based dark channel prior for haze ...The prior based methods were highly ... See full document

... in image and video monitoring systems. The causes of foggy image degradation were explained in detail and the approaches of image enhance- ment and image restoration for defogging were ...the ... See full document

... of dark channel prior and transmission map estimation are only applicable for a steady weather, and not for a dynamic ...enhanced dehazing that proposed in this paper is suitable for ... See full document

... in dark channel prior, air light, transmission map and radiance ...an image generally lost color and edges. So dehazing technique restores edge losses and color impacts ...whole ... See full document

... Results on a variety of outdoor foggy images reveal that the proposed method achieves good restoration for contrast and color loyalty, resulting in a great enhancement in image visibilit[r] ... See full document

... of image processing which result is more suitable for a particular ...focus image, highlighting edges, improving image contrast, Dehazing or brightening an image, removing ...in ... See full document

... of image restoration, the scholars have accomplished a lot of work: Tan [4] proposed a contrast priori restoration ...free image has higher contrast than foggy ...this prior condition, we first ... See full document

... these dark pixels can directly provide accurate estimation of the hazes ...haze-free image can be recovered and produce a good depth map (up to a ...the prior into the haze imag- ing model, single ... See full document

... accuracy of the transmission maps. Figure 12 shows some examples before and after Gaussian filtering. As can be seen in Figs. 12b, c, the Gaussian filter is effective in removing false color textures in the transmission ... See full document

... Objective methods can be used for numerically measuring the image quality. We used two factors as objective quality assessment; edges (e) which may not be seen well in hazy images and average gradient (r) after ... See full document

... The presence of environmental disturbances such as haze and smog gives outdoor images and videos undesirable characteristics that affect the ability of computer vision systems to detect patterns and perform an efficient ... See full document

... The ability of dehazing is weakened by this method on bright regions. This method offsets the defects of the method in reference [9], and provides more natural results. However, this algorithm cannot provide a ... See full document

... to image degradation through vari- ous degradation mechanisms including but not limited to contrast attenuation, blurring and pixel ...single image dark channel dehazing algorithms have ... See full document

... Each image in the dataset is assigned up to five labels: settlement, road, tunnel, traffic and ...each image as a histogram of visual ...an image by capturing perceptual features meaningful to a ... See full document

... effective image prior - bright channel prior - based on a kind of statistics that most local regions of the normal illumination images contain some pixels whose intensity are very high in at ... See full document