A Cyberpunk Style Image Maker

Converts an image to a Cyberpunk style image, but only work well for some particular styles of images

function imgOut = cyberpunkify(inputData, varargin)

% cyberpunkify_v2: Converts an image to a Cyberpunk style.

% 将图像转换为赛博朋克风格。

%

% This version combines the core color grading logic from the first version

% with the improved digital effects of the v2.0 framework.

% 该版本结合了第一版的核心调色逻辑与v2.0框架下的数字效果改进。

%

% USAGE:

% imshow(cyberpunkify('city.jpg'));

% imgOut = cyberpunkify(imageData, 'glow_strength', 40);

% 1. Input Parser / 参数解析

p = inputParser;

addRequired(p, 'inputData');

addParameter(p, 'brightness', -0.2, @isnumeric);

addParameter(p, 'contrast', 0.3, @isnumeric);

addParameter(p, 'highlight_threshold', 0.7, @isnumeric);

addParameter(p, 'glow_strength', 30, @isnumeric);

addParameter(p, 'aberration_strength', 3, @isnumeric);

addParameter(p, 'scan_line_opacity', 0.1, @isnumeric);

addParameter(p, 'vignette_strength', 0.6, @isnumeric);

parse(p, inputData, varargin{:});

params = p.Results;

% 2. Load Image & Initialization / 读取图像与初始化

if ischar(params.inputData) || isstring(params.inputData)

img_orig = imread(params.inputData);

else if isnumeric(params.inputData) && ndims(params.inputData) == 3

img_orig = params.inputData;

else, error('Invalid input. Must be a file path or an RGB image matrix.');

end

end

img_orig = im2double(img_orig);

[h, w, ~] = size(img_orig);

fprintf('Cyberpunkify v2.0 Initialized with v1.0 color grading.\n');

% --- 第一层：建立基础暗调 (Day to Night) ---

fprintf('第一层：模拟夜景，构建蓝/紫暗调...\n');

base_img = imadjust(img_orig, ...

[0; 1], ...

[0 + params.contrast/2; 1 - params.contrast/2], ...

1 + params.brightness);

base_img(:,:,1) = base_img(:,:,1) * 0.85; % 减少红色

base_img(:,:,2) = base_img(:,:,2) * 0.9; % 减少绿色

base_img = min(max(base_img, 0), 1);

% --- 第二层：提取并染色高光 (Neon Lights) ---

fprintf('第二层：点亮霓虹，渲染洋红/青色高光...\n');

gray_img = rgb2gray(img_orig);

highlight_mask = gray_img >= params.highlight_threshold;

% 向量化生成颜色渐变图

magenta = [1, 0, 0.8];

cyan = [0, 0.8, 1];

ratio_vec = linspace(0, 1, w);

magenta_3d = reshape(magenta, 1, 1, 3);

cyan_3d = reshape(cyan, 1, 1, 3);

color_map = (1 - ratio_vec) .* magenta_3d + ratio_vec .* cyan_3d;

neon_layer = color_map .* highlight_mask;

% --- 第三层：创造辉光氛围 (Glow/Bloom) ---

fprintf('第三层：添加辉光效果，营造氛围感...\n');

if params.glow_strength > 0

glow_layer = imgaussfilt(neon_layer, params.glow_strength);

else

glow_layer = zeros(size(neon_layer));

end

% 恢复 v1.0 的直接叠加方式

processed_img = base_img + neon_layer*1.2 + glow_layer*1.5;

processed_img = min(max(processed_img, 0), 1);

% --- 第四层：增加数字感 (Digital Feel) ---

final_img = processed_img;

% Chromatic Aberration / 色差

if params.aberration_strength > 0

fprintf('Layer 4.1: Adding chromatic aberration...\n');

s = params.aberration_strength;

R = final_img(:,:,1); G = final_img(:,:,2); B = final_img(:,:,3);

R_shifted = imtranslate(R, [s, s]); B_shifted = imtranslate(B, [-s, -s]); % 对角线偏移

R_shifted = R_shifted(1:h, 1:w); B_shifted = B_shifted(1:h, 1:w);

final_img = cat(3, R_shifted, G, B_shifted);

end

% Scan Lines / 扫描线

if params.scan_line_opacity > 0

fprintf('Layer 4.2: Adding scan lines...\n');

scan_lines = ones(h, 1) * linspace(1, 1 - params.scan_line_opacity, w);

scan_lines(1:3:end,:) = scan_lines(1:3:end,:) * 0.9;

final_img = final_img .* scan_lines;

end

% Vignette / 暗角

if params.vignette_strength > 0

fprintf('Layer 4.3: Adding vignette...\n');

[X, Y] = meshgrid(linspace(-1, 1, w), linspace(-1, 1, h));

gauss = exp(-(X.^2 + Y.^2) * params.vignette_strength);

final_img = final_img .* gauss;

end

% 7. Final Output / 最终输出

imgOut = im2uint8(min(max(final_img, 0), 1));

fprintf('Cyberpunkify v2.0 Process Complete.\n');

end