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41
Readme.md
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@@ -10,12 +10,43 @@ Comparing to Adobe Illustrator's Live Trace, VTracer's output is much more compa
A technical description of the algorithm is on [visioncortex.org/vtracer-docs](//www.visioncortex.org/vtracer-docs).
## Tech Stack
## Web App
VTracer and its [core library](//github.com/visioncortex/visioncortex) is implemented in [Rust](//www.rust-lang.org/). It provides us a solid foundation to develop robust and efficient algorithms and easily bring it to interactive applications. The supported target for now is WASM. It is interactive and fast, and is a perfect showcase of the capability of the Rust + HTML5 platform. We do plan to develop a command line program for VTracer.
## Screenshots
VTracer and its [core library](//github.com/visioncortex/visioncortex) is implemented in [Rust](//www.rust-lang.org/). It provides us a solid foundation to develop robust and efficient algorithms and easily bring it to interactive applications. The webapp is a perfect showcase of the capability of the Rust + HTML5 platform.
![screenshot](docs/images/screenshot-01.png)
![screenshot](docs/images/screenshot-02.png)
![screenshot](docs/images/screenshot-02.png)
## Command Line
```
visioncortex VTracer
A cmd app to convert images into vector graphics.
USAGE:
vtracer [OPTIONS] --input <input> --output <output>
FLAGS:
-h, --help Prints help information
-V, --version Prints version information
OPTIONS:
--colormode <color_mode> True color image `color` (default) or Binary image `bw`
-p, --color_precision <color_precision> Number of significant bits to use in an RGB channel
-c, --corner_threshold <corner_threshold> Minimum momentary angle (degree) to be considered a corner
-f, --filter_speckle <filter_speckle> Discard patches smaller than X px in size
-g, --gradient_step <gradient_step> Color difference between gradient layers
-i, --input <input> Path to input raster image
-m, --mode <mode> Curver fitting mode `pixel`, `polygon`, `spline`
-o, --output <output> Path to output vector graphics
--preset <preset> Use one of the preset configs `bw`, `poster`, `photo`
-l, --segment_length <segment_length>
Perform iterative subdivide smooth until all segments are shorter than this length
-s, --splice_threshold <splice_threshold> Minimum angle displacement (degree) to splice a spline
```
### Usage
```
./vtracer --input input.jpg --output output.svg
```

29
cmdapp/Cargo.toml
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@@ -1,15 +1,16 @@
[package]
name = "vtracer"
version = "0.1.0"
authors = ["Chris Tsang <tyt2y7@gmail.com>"]
edition = "2018"
description = "A cmd app to convert images into vector graphics."
homepage = "http://www.visioncortex.org/vtracer"
repository = "https://github.com/visioncortex/vtracer/"
categories = ["graphics"]
keywords = ["svg", "computer-graphics"]
[package]
name = "vtracer"
version = "0.1.0"
authors = ["Chris Tsang <tyt2y7@gmail.com>"]
edition = "2018"
description = "A cmd app to convert images into vector graphics."
license = "MIT OR Apache-2.0"
homepage = "http://www.visioncortex.org/vtracer"
repository = "https://github.com/visioncortex/vtracer/"
categories = ["graphics"]
keywords = ["svg", "computer-graphics"]
[dependencies]
clap = "2.33.3"
image = "0.23.10"
visioncortex = { path = "../visioncortex" }
[dependencies]
clap = "2.33.3"
image = "0.23.10"
visioncortex = "0.2.0"

201
cmdapp/LICENSE-APACHE Normal file
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@@ -0,0 +1,201 @@
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25
cmdapp/LICENSE-MIT Normal file
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@@ -0,0 +1,25 @@
Copyright (c) 2020 Tsang Hao Fung
Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without
limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software
is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice
shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

77
cmdapp/src/config.rs
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@@ -1,7 +1,7 @@
use std::str::FromStr;
use std::path::PathBuf;
use clap::{Arg, App};
use visioncortex::path::PathSimplifyMode;
use super::util::{path_simplify_mode, preset, deg2rad};
pub enum Preset {
Bw,
@@ -9,11 +9,18 @@ pub enum Preset {
Photo
}
#[derive(Debug)]
pub enum ColorMode {
Color,
Binary,
}
/// Converter config
#[derive(Debug)]
pub struct Config {
pub input_path: PathBuf,
pub output_path: PathBuf,
pub color_mode: String,
pub color_mode: ColorMode,
pub filter_speckle: usize,
pub color_precision: i32,
pub layer_difference: i32,
@@ -25,10 +32,10 @@ pub struct Config {
}
#[derive(Debug)]
pub struct ConverterConfig {
pub(crate) struct ConverterConfig {
pub input_path: PathBuf,
pub output_path: PathBuf,
pub color_mode: String,
pub color_mode: ColorMode,
pub filter_speckle_area: usize,
pub color_precision_loss: i32,
pub layer_difference: i32,
@@ -44,8 +51,8 @@ impl Default for Config {
Self {
input_path: PathBuf::default(),
output_path: PathBuf::default(),
color_mode: String::from("color"),
mode: path_simplify_mode("spline"),
color_mode: ColorMode::Color,
mode: PathSimplifyMode::Spline,
filter_speckle: 4,
color_precision: 6,
layer_difference: 16,
@@ -57,6 +64,40 @@ impl Default for Config {
}
}
impl FromStr for ColorMode {
type Err = String;
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"color" => Ok(Self::Color),
"binary" => Ok(Self::Binary),
_ => Err(format!("unknown ColorMode {}", s)),
}
}
}
impl FromStr for Preset {
type Err = String;
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"bw" => Ok(Self::Bw),
"poster" => Ok(Self::Poster),
"photo" => Ok(Self::Photo),
_ => Err(format!("unknown Preset {}", s)),
}
}
}
fn path_simplify_mode_from_str(s: &str) -> PathSimplifyMode {
match s {
"polygon" => PathSimplifyMode::Polygon,
"spline" => PathSimplifyMode::Spline,
"none" => PathSimplifyMode::None,
_ => panic!("unknown PathSimplifyMode {}", s),
}
}
impl Config {
pub fn from_args() -> Self {
let app = App::new("visioncortex VTracer").about("A cmd app to convert images into vector graphics.");
@@ -135,19 +176,19 @@ impl Config {
let output_path = matches.value_of("output").expect("Output path is required, please specify it by --output or -o.");
if let Some(value) = matches.value_of("preset") {
config = Self::from_preset(preset(value), input_path, output_path);
config = Self::from_preset(Preset::from_str(value).unwrap(), input_path, output_path);
}
config.input_path = PathBuf::from(input_path);
config.output_path = PathBuf::from(output_path);
if let Some(value) = matches.value_of("color_mode") {
config.color_mode = String::from(if value.trim() == "bw" || value.trim() == "BW" {"binary"} else {"color"})
config.color_mode = ColorMode::from_str(if value.trim() == "bw" || value.trim() == "BW" {"binary"} else {"color"}).unwrap()
}
if let Some(value) = matches.value_of("mode") {
let value = value.trim();
config.mode = path_simplify_mode(if value == "pixel" {
config.mode = path_simplify_mode_from_str(if value == "pixel" {
"none"
} else if value == "polygon" {
"polygon"
@@ -240,11 +281,11 @@ impl Config {
Preset::Bw => Self {
input_path,
output_path,
color_mode: String::from("binary"),
color_mode: ColorMode::Binary,
filter_speckle: 4,
color_precision: 6,
layer_difference: 16,
mode: path_simplify_mode("spline"),
mode: PathSimplifyMode::Spline,
corner_threshold: 60,
length_threshold: 4.0,
max_iterations: 10,
@@ -253,11 +294,11 @@ impl Config {
Preset::Poster => Self {
input_path,
output_path,
color_mode: String::from("color"),
color_mode: ColorMode::Color,
filter_speckle: 4,
color_precision: 8,
layer_difference: 16,
mode: path_simplify_mode("spline"),
mode: PathSimplifyMode::Spline,
corner_threshold: 60,
length_threshold: 4.0,
max_iterations: 10,
@@ -266,11 +307,11 @@ impl Config {
Preset::Photo => Self {
input_path,
output_path,
color_mode: String::from("color"),
color_mode: ColorMode::Color,
filter_speckle: 10,
color_precision: 8,
layer_difference: 48,
mode: path_simplify_mode("spline"),
mode: PathSimplifyMode::Spline,
corner_threshold: 180,
length_threshold: 4.0,
max_iterations: 10,
@@ -279,7 +320,7 @@ impl Config {
}
}
pub fn into_converter_config(self) -> ConverterConfig {
pub(crate) fn into_converter_config(self) -> ConverterConfig {
ConverterConfig {
input_path: self.input_path,
output_path: self.output_path,
@@ -295,3 +336,7 @@ impl Config {
}
}
}
fn deg2rad(deg: i32) -> f64 {
deg as f64 / 180.0 * std::f64::consts::PI
}

20
cmdapp/src/converter.rs
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@@ -1,24 +1,20 @@
use std::path::PathBuf;
use std::{fs::File, io::Write};
use visioncortex::Color;
use visioncortex::{ColorName, color_clusters::RunnerConfig};
use visioncortex::{ColorImage, color_clusters::Runner};
use super::config::{Config, ConverterConfig};
use visioncortex::{Color, ColorImage, ColorName, color_clusters::RunnerConfig, color_clusters::Runner};
use super::config::{Config, ColorMode, ConverterConfig};
use super::svg::SvgFile;
/// Convert an image file into svg file
pub fn convert_image_to_svg(config: Config) -> Result<(), String> {
let config = config.into_converter_config();
if config.color_mode == "color" {
color_image_to_svg(config)
} else if config.color_mode == "binary" {
binary_image_to_svg(config)
} else {
Err(format!("Unknown color mode: {}", config.color_mode))
match config.color_mode {
ColorMode::Color => color_image_to_svg(config),
ColorMode::Binary => binary_image_to_svg(config),
}
}
pub fn color_image_to_svg(config: ConverterConfig) -> Result<(), String> {
fn color_image_to_svg(config: ConverterConfig) -> Result<(), String> {
let (img, width, height);
match read_image(config.input_path) {
Ok(values) => {
@@ -69,7 +65,7 @@ pub fn color_image_to_svg(config: ConverterConfig) -> Result<(), String> {
Ok(())
}
pub fn binary_image_to_svg(config: ConverterConfig) -> Result<(), String> {
fn binary_image_to_svg(config: ConverterConfig) -> Result<(), String> {
let (img, width, height);
match read_image(config.input_path) {

14
cmdapp/src/lib.rs
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@@ -1,9 +1,17 @@
// Copyright 2020 Tsang Hao Fung. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
mod config;
mod converter;
mod svg;
mod util;
pub use config::*;
pub use converter::*;
pub use svg::*;
pub use util::*;
pub use svg::*;

24
cmdapp/src/util.rs
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@@ -1,24 +0,0 @@
use visioncortex::PathSimplifyMode;
use super::Preset;
pub fn path_simplify_mode(s: &str) -> PathSimplifyMode {
match s {
"polygon" => PathSimplifyMode::Polygon,
"spline" => PathSimplifyMode::Spline,
"none" => PathSimplifyMode::None,
_ => panic!("unknown PathSimplifyMode {}", s),
}
}
pub fn preset(s: &str) -> Preset {
match s {
"bw" => Preset::Bw,
"poster" => Preset::Poster,
"photo" => Preset::Photo,
_ => panic!("unknown Preset {}", s),
}
}
pub fn deg2rad(deg: i32) -> f64 {
deg as f64 / 180.0 * std::f64::consts::PI
}

2
webapp/Cargo.toml
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@@ -21,7 +21,7 @@ console_log = { version = "0.2", features = ["color"] }
wasm-bindgen = { version = "0.2", features = ["serde-serialize"] }
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"
visioncortex = { path = "../visioncortex" }
visioncortex = "0.2.0"
# The `console_error_panic_hook` crate provides better debugging of panics by
# logging them with `console.error`. This is great for development, but requires