dehaze.m

%http://kaiminghe.com/cvpr09/comparisons.html
%http://www.meo.etc.upt.ro/AncutiProjectPages/D_Hazzy_ICIP2016/

image = imread('./images_final/6.png');

hsv_image = rgb2hsv(image);

[sizex, sizey] = size(image);


theta_0 = 0.121779;
theta_1 = 0.959710;
theta_2 = -0.780245;
deviation = 0.041337;

depth = theta_0 + theta_1*hsv_image(:,:,3)+ theta_2*hsv_image(:,:,2);
imshow(depth);
figure;

t_min = min(max(exp(-depth),.1),.9);

image_scaled = double(image)/255.0;

grayscale = double(rgb2gray(image))/255;

order_depth = sort(depth(:),'descend');
min_range = min(order_depth(1:int64((sizex* sizey)*.001)));
A = max(max((depth < min_range) .*grayscale));

fprintf('Attenuation:%d \n', A)

for i = 1:3
    image_scaled(:,:,i) = ((image_scaled(:,:,i)-A) ./ t_min) + A;
end

subplot(1,2,1);
imshow(uint8(image_scaled * 255));
subplot(1,2,2);
imshow(image);

%

%image = hsv2rgb(image);
%imshow(image);

info.txt

sources:

http://ieeexplore.ieee.org/document/7128396/
http://webee.technion.ac.il/~yoav/publications/hazecvpr.pdf
http://www.eng.tau.ac.il/~berman/NonLocalDehazing/
https://arxiv.org/pdf/1510.01018.pdf
http://kaiminghe.com/cvpr09/comparisons.html
http://www.meo.etc.upt.ro/AncutiProjectPages/D_Hazzy_ICIP2016/