img2svg 0.1.7

A rust native image to SVG converter in CLI/MCP/Library
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138

mod cli;
mod image_processor;
mod svg_generator;
mod vectorizer;
mod preprocessor;
mod edge_detector;
mod enhanced_quantizer;
mod region_extractor;
mod path_simplifier;
mod bezier_fitter;
mod enhanced_vectorizer;

use anyhow::Result;
use clap::Parser;
use cli::{Cli, is_supported_image};
use preprocessor::{preprocess, PreprocessOptions};
use enhanced_vectorizer::{vectorize_enhanced, write_enhanced_svg, EnhancedOptions};
use std::path::{Path, PathBuf};

/// Process a single image file.
fn process_file(
    input_path: &Path,
    output_path: &Path,
    cli: &Cli,
) -> Result<()> {
    eprintln!("  Loading image...");
    let mut image_data = image_processor::load_image(input_path)?;

    // Auto-resize large images to prevent OOM
    image_data = image_processor::resize_if_needed(image_data, cli.max_size);

    // Apply preprocessing if requested
    if cli.preprocess {
        eprintln!("  Applying edge-preserving smoothing and color reduction...");
        let opts = PreprocessOptions::photo();
        image_data = preprocess(&image_data, &opts)?;
    }

    // Provide hints for photographs
    let unique_colors = image_data.pixels.iter()
        .map(|p| (p.r, p.g, p.b))
        .collect::<std::collections::HashSet<_>>()
        .len();

    if unique_colors > 10000 && !cli.preprocess {
        eprintln!("  Note: photo detected ({} colors). Try --preprocess for better results.", unique_colors);
    }

    if cli.original {
        eprintln!("  Using original pipeline (line segments, RDP simplification)...");
        let vectorized_data = vectorizer::vectorize(
            &image_data,
            cli.colors,
            cli.threshold,
            cli.smooth,
            cli.hierarchical,
        )?;

        eprintln!("  Generating SVG...");
        if cli.advanced {
            svg_generator::generate_svg_advanced(&vectorized_data, output_path)?;
        } else {
            svg_generator::generate_svg(&vectorized_data, output_path)?;
        }
    } else {
        let options = EnhancedOptions {
            num_colors: cli.colors,
            preprocess: cli.preprocess || EnhancedOptions::default().preprocess,
            ..Default::default()
        };
        eprintln!("  Vectorizing with enhanced pipeline...");
        let vector_data = vectorize_enhanced(&image_data, &options)?;
        eprintln!("  Generating SVG...");
        write_enhanced_svg(&vector_data, output_path)?;
        eprintln!(
            "  {} paths, background #{:02x}{:02x}{:02x}",
            vector_data.paths.len(),
            vector_data.background_color.0,
            vector_data.background_color.1,
            vector_data.background_color.2,
        );
    }

    Ok(())
}

fn main() -> Result<()> {
    let cli = Cli::parse();

    if cli.input.is_dir() {
        // Batch mode: process all supported images in directory
        let output_dir = cli.output.clone().unwrap_or_else(|| cli.input.clone());
        if !output_dir.exists() {
            std::fs::create_dir_all(&output_dir)?;
        }

        let mut count = 0u32;
        let mut errors = 0u32;
        let entries: Vec<_> = std::fs::read_dir(&cli.input)?
            .filter_map(|e| e.ok())
            .filter(|e| e.path().is_file() && is_supported_image(&e.path()))
            .collect();

        let total = entries.len();
        eprintln!("Batch converting {} images from {}...", total, cli.input.display());

        for entry in &entries {
            let path = entry.path();
            let stem = path.file_stem().unwrap().to_string_lossy();
            let mut out_path = output_dir.join(stem.as_ref());
            out_path.set_extension("svg");

            eprintln!("[{}/{}] {} -> {}", count + errors + 1, total, path.display(), out_path.display());
            match process_file(&path, &out_path, &cli) {
                Ok(()) => count += 1,
                Err(e) => {
                    eprintln!("  Error: {}", e);
                    errors += 1;
                }
            }
        }

        println!("Batch complete: {} converted, {} errors.", count, errors);
    } else {
        // Single file mode
        let output_path = cli.output.clone().unwrap_or_else(|| {
            let mut path = cli.input.clone();
            path.set_extension("svg");
            path
        });

        println!("Converting {} to {}...", cli.input.display(), output_path.display());
        process_file(&cli.input, &output_path, &cli)?;
        println!("Conversion complete!");
    }

    Ok(())
}