first commit
This commit is contained in:
Sander Hautvast
commit
6b90f1b054
12 changed files with 1732 additions and 0 deletions
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "25f1af7423d8588a3d840681122e72e6a24ddbcb3f0ec385cac0d12d24256c06"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"serde",
|
||||
"serde_json",
|
||||
"wasm-bindgen-macro",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-backend"
|
||||
version = "0.2.79"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8b21c0df030f5a177f3cba22e9bc4322695ec43e7257d865302900290bcdedca"
|
||||
dependencies = [
|
||||
"bumpalo",
|
||||
"lazy_static",
|
||||
"log",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
"wasm-bindgen-shared",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-futures"
|
||||
version = "0.4.29"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2eb6ec270a31b1d3c7e266b999739109abce8b6c87e4b31fcfcd788b65267395"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"js-sys",
|
||||
"wasm-bindgen",
|
||||
"web-sys",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-macro"
|
||||
version = "0.2.79"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2f4203d69e40a52ee523b2529a773d5ffc1dc0071801c87b3d270b471b80ed01"
|
||||
dependencies = [
|
||||
"quote",
|
||||
"wasm-bindgen-macro-support",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-macro-support"
|
||||
version = "0.2.79"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "bfa8a30d46208db204854cadbb5d4baf5fcf8071ba5bf48190c3e59937962ebc"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
"wasm-bindgen-backend",
|
||||
"wasm-bindgen-shared",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-shared"
|
||||
version = "0.2.79"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3d958d035c4438e28c70e4321a2911302f10135ce78a9c7834c0cab4123d06a2"
|
||||
|
||||
[[package]]
|
||||
name = "wasm-logger"
|
||||
version = "0.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "074649a66bb306c8f2068c9016395fa65d8e08d2affcbf95acf3c24c3ab19718"
|
||||
dependencies = [
|
||||
"log",
|
||||
"wasm-bindgen",
|
||||
"web-sys",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "web-sys"
|
||||
version = "0.3.56"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c060b319f29dd25724f09a2ba1418f142f539b2be99fbf4d2d5a8f7330afb8eb"
|
||||
dependencies = [
|
||||
"js-sys",
|
||||
"wasm-bindgen",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "weezl"
|
||||
version = "0.1.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d8b77fdfd5a253be4ab714e4ffa3c49caf146b4de743e97510c0656cf90f1e8e"
|
||||
|
||||
[[package]]
|
||||
name = "yew"
|
||||
version = "0.19.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2a1ccb53e57d3f7d847338cf5758befa811cabe207df07f543c06f502f9998cd"
|
||||
dependencies = [
|
||||
"console_error_panic_hook",
|
||||
"gloo",
|
||||
"gloo-utils",
|
||||
"indexmap",
|
||||
"js-sys",
|
||||
"scoped-tls-hkt",
|
||||
"slab",
|
||||
"wasm-bindgen",
|
||||
"wasm-bindgen-futures",
|
||||
"web-sys",
|
||||
"yew-macro",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "yew-app"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"gloo-utils",
|
||||
"image",
|
||||
"imageproc",
|
||||
"log",
|
||||
"wasm-bindgen",
|
||||
"wasm-logger",
|
||||
"web-sys",
|
||||
"yew",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "yew-macro"
|
||||
version = "0.19.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5fab79082b556d768d6e21811869c761893f0450e1d550a67892b9bce303b7bb"
|
||||
dependencies = [
|
||||
"boolinator",
|
||||
"lazy_static",
|
||||
"proc-macro-error",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
30
Cargo.toml
Normal file
30
Cargo.toml
Normal file
|
|
@ -0,0 +1,30 @@
|
|||
[package]
|
||||
edition = "2021"
|
||||
name = "yew-app"
|
||||
version = "0.1.0"
|
||||
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
|
||||
[dependencies]
|
||||
gloo-utils = "0.1.2"
|
||||
log = "0.4.6"
|
||||
wasm-bindgen = "0.2.79"
|
||||
wasm-logger = "0.2.0"
|
||||
web-sys = {version = "0.3.56", features = [
|
||||
"DataTransfer",
|
||||
"DataTransferItemList",
|
||||
"DataTransferItem",
|
||||
"Document",
|
||||
"Element",
|
||||
"Node",
|
||||
"HtmlElement",
|
||||
"HtmlImageElement",
|
||||
"Url",
|
||||
'Blob',
|
||||
'HtmlCanvasElement',
|
||||
'ImageData',
|
||||
'CanvasRenderingContext2d'
|
||||
]}
|
||||
yew = "0.19"
|
||||
image = "0.23.14"
|
||||
imageproc="0.22.0"
|
||||
3
README.md
Normal file
3
README.md
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
work in progress
|
||||
Goal: image filters, running clientside
|
||||
 => 
|
||||
BIN
destination.jpg
Normal file
BIN
destination.jpg
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 928 KiB |
10
index.html
Normal file
10
index.html
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
<!DOCTYPE html>
|
||||
<html>
|
||||
|
||||
<head>
|
||||
<link data-trunk rel="copy-dir" href="/static"/>
|
||||
<meta charset="utf-8"/>
|
||||
<title>Spiegel</title>
|
||||
<link rel="stylesheet" href="static/css/style.css">
|
||||
</head>
|
||||
</html>
|
||||
BIN
source.jpg
Normal file
BIN
source.jpg
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 353 KiB |
113
src/app.rs
Normal file
113
src/app.rs
Normal file
|
|
@ -0,0 +1,113 @@
|
|||
use gloo_utils::document;
|
||||
use wasm_bindgen::JsCast;
|
||||
use web_sys::{DragEvent, HtmlImageElement};
|
||||
use web_sys::{CanvasRenderingContext2d, HtmlCanvasElement, ImageData};
|
||||
use web_sys::Url;
|
||||
use yew::{Component, Context, html, Html};
|
||||
|
||||
pub enum Msg {
|
||||
Dropped(DragEvent),
|
||||
Dragged(DragEvent),
|
||||
ImageLoaded,
|
||||
}
|
||||
|
||||
pub struct DropPhoto {}
|
||||
|
||||
impl Component for DropPhoto {
|
||||
type Message = Msg;
|
||||
type Properties = ();
|
||||
|
||||
fn create(_ctx: &Context<Self>) -> Self {
|
||||
Self {}
|
||||
}
|
||||
|
||||
fn update(&mut self, _ctx: &Context<Self>, msg: Self::Message) -> bool {
|
||||
match msg {
|
||||
Msg::Dragged(event) => {
|
||||
event.prevent_default();
|
||||
false
|
||||
}
|
||||
Msg::Dropped(event) => {
|
||||
event.prevent_default();
|
||||
let data_transfer = event
|
||||
.data_transfer()
|
||||
.expect("Event should have DataTransfer");
|
||||
let item_list = data_transfer.items();
|
||||
for i in 0..item_list.length() {
|
||||
let item = item_list.get(i).expect("Should find an item");
|
||||
if item.kind() == "file" {
|
||||
let file = item
|
||||
.get_as_file()
|
||||
.expect("Should find a file here")
|
||||
.unwrap();
|
||||
let url = Url::create_object_url_with_blob(&file).expect("Cannot create url");
|
||||
let img = document().get_element_by_id("source-image").expect("cannot get #source-image").dyn_into::<HtmlImageElement>().unwrap();
|
||||
img.set_src(&url);
|
||||
}
|
||||
|
||||
}
|
||||
true
|
||||
}
|
||||
Msg::ImageLoaded => {
|
||||
if let Some(canvas) = document().get_element_by_id("source").and_then(|e| e.dyn_into::<HtmlCanvasElement>().ok()) {
|
||||
let ctx: CanvasRenderingContext2d = canvas
|
||||
.get_context("2d")
|
||||
.unwrap()
|
||||
.unwrap()
|
||||
.dyn_into::<CanvasRenderingContext2d>()
|
||||
.unwrap();
|
||||
if let Some(img) = document().get_element_by_id("source-image").and_then(|e| e.dyn_into::<HtmlImageElement>().ok()) {
|
||||
canvas.set_width(img.width());
|
||||
canvas.set_height(img.height());
|
||||
ctx.draw_image_with_html_image_element(&img, 0.0, 0.0).expect("Cannot draw image on canvas");
|
||||
}
|
||||
if let Some(drop_zone) = document().get_element_by_id("drop-zone") {
|
||||
drop_zone.set_attribute("style", "display:none").expect("Cannot update attribute");
|
||||
}
|
||||
}
|
||||
true
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn view(&self, ctx: &Context<Self>) -> Html {
|
||||
let link = ctx.link();
|
||||
html! {
|
||||
<>
|
||||
<div id="drop-zone" class="drop-zone"
|
||||
ondragover={link.callback(|e| Msg::Dragged(e))}
|
||||
ondrop={link.callback(|e| Msg::Dropped(e))}>
|
||||
<p>{ "drag your photos here" }</p>
|
||||
</div>
|
||||
<img id="source-image" style="display:none" onload={link.callback(|_| Msg::ImageLoaded)}/>
|
||||
<canvas id="source"></canvas>
|
||||
<canvas id="dest"></canvas>
|
||||
</>
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//make generic for element type
|
||||
// fn with_element<F>(id: &str, action: F)
|
||||
// where
|
||||
// F: Fn(Element),
|
||||
// {
|
||||
// if let Some(element) = document()
|
||||
// .get_element_by_id(id) {
|
||||
// action(element);
|
||||
// }
|
||||
// }
|
||||
|
||||
fn create_element<'a, T>(element_type: &str) -> T
|
||||
where
|
||||
T: JsCast,
|
||||
{
|
||||
let element = document().create_element(element_type).unwrap();
|
||||
element
|
||||
.dyn_into::<T>()
|
||||
.expect(&format!("Cannot create element {}", element_type))
|
||||
}
|
||||
|
||||
pub fn _get_image_data(canvas: &HtmlCanvasElement, ctx: &CanvasRenderingContext2d) -> ImageData {
|
||||
ctx.get_image_data(0.0, 0.0, canvas.width() as f64, canvas.height() as f64).unwrap()
|
||||
}
|
||||
8
src/main.rs
Normal file
8
src/main.rs
Normal file
|
|
@ -0,0 +1,8 @@
|
|||
mod app;
|
||||
mod transform;
|
||||
mod quantizer;
|
||||
|
||||
fn main() {
|
||||
wasm_logger::init(wasm_logger::Config::default());
|
||||
yew::start_app::<crate::app::DropPhoto>();
|
||||
}
|
||||
347
src/quantizer.rs
Normal file
347
src/quantizer.rs
Normal file
|
|
@ -0,0 +1,347 @@
|
|||
use std::{cell::RefCell, rc::Rc};
|
||||
|
||||
use image::{Pixel, Rgb, RgbImage};
|
||||
|
||||
const MAX_LEVEL: usize = 5;
|
||||
|
||||
pub(crate) fn quantize(image: &RgbImage, num_colors: usize) -> RgbImage {
|
||||
let mut quantizer = OctTreeQuantizer::new(num_colors);
|
||||
quantizer.quantize(image)
|
||||
}
|
||||
|
||||
struct OctTreeQuantizer {
|
||||
root: Rc<RefCell<OctTreeNode>>,
|
||||
reduce_colors: usize,
|
||||
maximum_colors: usize,
|
||||
colors: usize,
|
||||
color_list: Vec<Vec<Option<Rc<RefCell<OctTreeNode>>>>>,
|
||||
}
|
||||
|
||||
impl OctTreeQuantizer {
|
||||
fn new(num_colors: usize) -> Self {
|
||||
let mut new_quantizer = Self {
|
||||
root: Rc::new(RefCell::new(OctTreeNode::new())),
|
||||
reduce_colors: usize::max(512, num_colors * 2),
|
||||
maximum_colors: num_colors,
|
||||
color_list: vec![],
|
||||
colors: 0,
|
||||
};
|
||||
|
||||
for _ in 0..=MAX_LEVEL {
|
||||
new_quantizer.color_list.push(Vec::new());
|
||||
}
|
||||
new_quantizer
|
||||
}
|
||||
|
||||
pub fn quantize(&mut self, image: &RgbImage) -> RgbImage {
|
||||
for pixel in image.pixels() {
|
||||
self.insert_color(pixel, Rc::clone(&self.root));
|
||||
|
||||
if self.colors > self.reduce_colors {
|
||||
self.reduce_tree(self.reduce_colors);
|
||||
//reduce sets to None and the code below actually removes nodes from the list
|
||||
for level in &mut self.color_list {
|
||||
level.retain(|c| c.is_some());
|
||||
}
|
||||
}
|
||||
}
|
||||
let table = self.build_color_table();
|
||||
|
||||
let mut imgbuf = RgbImage::new(image.width(), image.height());
|
||||
for (x, y, pixel) in image.enumerate_pixels() {
|
||||
if let Some(index) = self.get_index_for_color(pixel, &self.root) {
|
||||
let color = &table[index];
|
||||
if let Some(color) = color {
|
||||
imgbuf.put_pixel(x, y, *color);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
imgbuf
|
||||
}
|
||||
|
||||
fn get_index_for_color<P>(&self, color: &P, node: &Rc<RefCell<OctTreeNode>>) -> Option<usize>
|
||||
where
|
||||
P: Pixel<Subpixel = u8> + 'static,
|
||||
{
|
||||
fn get_index_for_color<P>(
|
||||
quantizer: &OctTreeQuantizer,
|
||||
color: &P,
|
||||
level: usize,
|
||||
node: &Rc<RefCell<OctTreeNode>>,
|
||||
) -> Option<usize>
|
||||
where
|
||||
P: Pixel<Subpixel = u8> + 'static,
|
||||
{
|
||||
if level > MAX_LEVEL {
|
||||
return None;
|
||||
}
|
||||
let node = Rc::clone(node);
|
||||
let index = get_bitmask(color, &level);
|
||||
|
||||
let node_b = node.borrow();
|
||||
let child = &node_b.leaf[index];
|
||||
|
||||
if let Some(child) = child {
|
||||
let child_b = child.borrow();
|
||||
if child_b.is_leaf {
|
||||
return Some(child_b.index);
|
||||
} else {
|
||||
return get_index_for_color(quantizer, color, level + 1, child);
|
||||
}
|
||||
} else {
|
||||
return Some(node_b.index);
|
||||
}
|
||||
}
|
||||
|
||||
get_index_for_color(&self, color, 0, node)
|
||||
}
|
||||
|
||||
fn build_color_table(&mut self) -> Vec<Option<Rgb<u8>>> {
|
||||
//nested function that is called recursively
|
||||
fn build_color_table(
|
||||
quantizer: &mut OctTreeQuantizer,
|
||||
node: &Rc<RefCell<OctTreeNode>>,
|
||||
table: &mut Vec<Option<Rgb<u8>>>,
|
||||
index: usize,
|
||||
) -> usize {
|
||||
if quantizer.colors > quantizer.maximum_colors {
|
||||
quantizer.reduce_tree(quantizer.maximum_colors);
|
||||
}
|
||||
if node.borrow().is_leaf {
|
||||
{
|
||||
let node = node.borrow();
|
||||
let count = node.count;
|
||||
table[index] = Some(Rgb::from([
|
||||
(node.total_red / count as u32) as u8,
|
||||
(node.total_green / count as u32) as u8,
|
||||
(node.total_blue / count as u32) as u8,
|
||||
]));
|
||||
}
|
||||
node.borrow_mut().index = index;
|
||||
|
||||
index + 1
|
||||
} else {
|
||||
let mut result = index;
|
||||
for i in 0..8 {
|
||||
// cannot iterate leaf, because that widens the scope of the borrow (of node)
|
||||
let mut node = node.borrow_mut();
|
||||
if let Some(leaf) = &node.leaf[i] {
|
||||
//could be immutable borrow
|
||||
let new_index = build_color_table(quantizer, leaf, table, result);
|
||||
node.index = index; //but also need mutable borrow here
|
||||
result = new_index;
|
||||
}
|
||||
}
|
||||
|
||||
result
|
||||
}
|
||||
}
|
||||
|
||||
let mut table: Vec<Option<Rgb<u8>>> = vec![None; self.colors];
|
||||
let node = Rc::clone(&self.root);
|
||||
build_color_table(self, &node, &mut table, 0);
|
||||
table
|
||||
}
|
||||
|
||||
fn insert_color<P>(&mut self, rgb: &P, node: Rc<RefCell<OctTreeNode>>)
|
||||
where
|
||||
P: Pixel<Subpixel = u8> + 'static,
|
||||
{
|
||||
//nested function that is called recursively
|
||||
fn insert_color<P>(
|
||||
quantizer: &mut OctTreeQuantizer,
|
||||
color: &P,
|
||||
level: usize,
|
||||
node: Rc<RefCell<OctTreeNode>>,
|
||||
) where
|
||||
P: Pixel<Subpixel = u8> + 'static,
|
||||
{
|
||||
if level > MAX_LEVEL {
|
||||
return;
|
||||
}
|
||||
|
||||
let index = get_bitmask(color, &level);
|
||||
|
||||
if node.borrow().leaf[index].is_none() {
|
||||
let mut child = OctTreeNode::new();
|
||||
child.parent = Some(Rc::clone(&node));
|
||||
child.p_index = quantizer.color_list[level].len();
|
||||
|
||||
if level == MAX_LEVEL {
|
||||
child.is_leaf = true;
|
||||
child.count = 1;
|
||||
child.total_red = color.channels()[0] as u32;
|
||||
child.total_green = color.channels()[1] as u32;
|
||||
child.total_blue = color.channels()[2] as u32;
|
||||
child.level = level;
|
||||
quantizer.colors += 1;
|
||||
}
|
||||
|
||||
let child = Rc::new(RefCell::new(child));
|
||||
quantizer.color_list[level].push(Some(Rc::clone(&child)));
|
||||
let clone = Rc::clone(&child);
|
||||
|
||||
{
|
||||
let mut mutnode = node.borrow_mut();
|
||||
mutnode.children += 1;
|
||||
mutnode.is_leaf = false;
|
||||
mutnode.leaf[index] = Some(child);
|
||||
}
|
||||
|
||||
if level < MAX_LEVEL {
|
||||
insert_color(quantizer, color, level + 1, clone);
|
||||
} else {
|
||||
return;
|
||||
}
|
||||
} else {
|
||||
if node
|
||||
.borrow()
|
||||
.leaf
|
||||
.get(index)
|
||||
.unwrap()
|
||||
.as_ref()
|
||||
.unwrap()
|
||||
.borrow()
|
||||
.is_leaf
|
||||
{
|
||||
let mut node = node.borrow_mut();
|
||||
let mut child = node
|
||||
.leaf
|
||||
.get_mut(index)
|
||||
.unwrap()
|
||||
.as_ref()
|
||||
.unwrap()
|
||||
.borrow_mut();
|
||||
child.count += 1;
|
||||
child.total_red += color.channels()[0] as u32;
|
||||
child.total_green += color.channels()[1] as u32;
|
||||
child.total_blue += color.channels()[2] as u32;
|
||||
return;
|
||||
} else {
|
||||
insert_color(
|
||||
quantizer,
|
||||
color,
|
||||
level + 1,
|
||||
Rc::clone(&(node.borrow().leaf[index]).as_ref().unwrap()),
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
insert_color(self, rgb, 0, node);
|
||||
}
|
||||
|
||||
fn reduce_tree(&mut self, num_colors: usize) {
|
||||
// Nested function that is called recursively
|
||||
fn reduce_tree(quantizer: &mut OctTreeQuantizer, num_colors: usize, level: isize) {
|
||||
if level < 0 {
|
||||
return;
|
||||
} else {
|
||||
let mut removals = Vec::new();
|
||||
let list = &quantizer.color_list[level as usize];
|
||||
for node in list {
|
||||
if let Some(node) = node {
|
||||
if node.borrow().children > 0 {
|
||||
for i in 0..8 {
|
||||
let mut color: Option<(usize, u32, u32, u32, usize)> = None;
|
||||
|
||||
if let Some(child) = node.borrow().leaf.get(i) {
|
||||
if let Some(child) = child {
|
||||
let child = child.borrow();
|
||||
color = Some((
|
||||
child.count,
|
||||
child.total_red,
|
||||
child.total_green,
|
||||
child.total_blue,
|
||||
child.p_index,
|
||||
));
|
||||
}
|
||||
}
|
||||
|
||||
// need to mutate node, which conflicts with previous borrow to retrieve the child
|
||||
if let Some(color) = color {
|
||||
let mut node = node.borrow_mut();
|
||||
node.count += color.0;
|
||||
node.total_red += color.1;
|
||||
node.total_green += color.2;
|
||||
node.total_blue += color.3;
|
||||
node.leaf[i] = None;
|
||||
node.children -= 1;
|
||||
quantizer.colors -= 1;
|
||||
|
||||
removals.push(color.4); //save for further processing outside loop (and borrow of colorlist)
|
||||
}
|
||||
}
|
||||
node.borrow_mut().is_leaf = true;
|
||||
quantizer.colors += 1;
|
||||
if quantizer.colors <= num_colors {
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
let color_list = &mut quantizer.color_list[(level as usize + 1)];
|
||||
for index in removals {
|
||||
color_list[index] = None; //set to None here, Option removed later
|
||||
}
|
||||
|
||||
reduce_tree(quantizer, num_colors, level - 1);
|
||||
}
|
||||
}
|
||||
|
||||
// call to nested function
|
||||
reduce_tree(self, num_colors, (MAX_LEVEL - 1) as isize);
|
||||
}
|
||||
}
|
||||
|
||||
struct OctTreeNode {
|
||||
children: usize,
|
||||
level: usize,
|
||||
parent: Option<Rc<RefCell<OctTreeNode>>>,
|
||||
leaf: Vec<Option<Rc<RefCell<OctTreeNode>>>>,
|
||||
is_leaf: bool,
|
||||
count: usize,
|
||||
total_red: u32,
|
||||
total_green: u32,
|
||||
total_blue: u32,
|
||||
index: usize,
|
||||
p_index: usize,
|
||||
}
|
||||
|
||||
impl OctTreeNode {
|
||||
fn new() -> Self {
|
||||
Self {
|
||||
children: 0,
|
||||
level: 0,
|
||||
parent: None,
|
||||
leaf: vec![None; 8],
|
||||
is_leaf: false,
|
||||
count: 0,
|
||||
total_red: 0,
|
||||
total_green: 0,
|
||||
total_blue: 0,
|
||||
index: 0,
|
||||
p_index: 0,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn get_bitmask<P>(color: &P, level: &usize) -> usize
|
||||
where
|
||||
P: Pixel<Subpixel = u8> + 'static,
|
||||
{
|
||||
let bit = 0x80 >> level;
|
||||
|
||||
let mut index = 0;
|
||||
if (color.channels()[0] & bit) != 0 {
|
||||
index += 4;
|
||||
}
|
||||
if (color.channels()[1] & bit) != 0 {
|
||||
index += 2;
|
||||
}
|
||||
if (color.channels()[2] & bit) != 0 {
|
||||
index += 1;
|
||||
}
|
||||
index
|
||||
}
|
||||
212
src/transform.rs
Normal file
212
src/transform.rs
Normal file
|
|
@ -0,0 +1,212 @@
|
|||
use std::{error::Error, fs, result::Result};
|
||||
|
||||
use image::{GenericImageView, ImageBuffer, Pixel, Rgb, RgbImage};
|
||||
use imageproc::point::Point;
|
||||
use crate::quantizer;
|
||||
|
||||
pub fn run(image_filename: &String) -> Result<(), Box<dyn Error>> {
|
||||
println!("reading image samples");
|
||||
let color_samples = read_color_samples()?;
|
||||
|
||||
let src: RgbImage = image::open(image_filename).unwrap().into_rgb8();
|
||||
|
||||
println!("applying gaussian blur filter");
|
||||
let gauss = imageproc::filter::gaussian_blur_f32(&src, 2.0);
|
||||
println!("applying median filter");
|
||||
let median = imageproc::filter::median_filter(&gauss, 2, 2);
|
||||
println!("applying color quantization filter");
|
||||
let quantized = quantizer::quantize(&median, 256);
|
||||
|
||||
println!("applying samples");
|
||||
let out = apply_samples_to_image(quantized, &color_samples);
|
||||
out.save_with_format("output.jpg", image::ImageFormat::Jpeg)?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn apply_samples_to_image(mut src: RgbImage, color_samples: &Vec<ColorSample>) -> RgbImage{
|
||||
let mut imgbuf = RgbImage::new(src.width(), src.height());
|
||||
unsafe {
|
||||
for y in 0..src.height() {
|
||||
for x in 0..src.width() {
|
||||
let pixel = &src.unsafe_get_pixel(x, y);
|
||||
if imgbuf.unsafe_get_pixel(x, y).channels() == [0, 0, 0] {
|
||||
if let Some(sample) = get_closest(&color_samples, pixel) {
|
||||
fill(&mut src, sample, &mut imgbuf, pixel, x, y);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
imgbuf
|
||||
}
|
||||
|
||||
fn fill(
|
||||
src: &mut ImageBuffer<Rgb<u8>, Vec<u8>>,
|
||||
sample: &ColorSample,
|
||||
dest: &mut ImageBuffer<Rgb<u8>, Vec<u8>>,
|
||||
color: &Rgb<u8>,
|
||||
px: u32,
|
||||
py: u32,
|
||||
) {
|
||||
if color.channels() == [0, 0, 0] {
|
||||
return;
|
||||
}
|
||||
let height = sample.image.height();
|
||||
let width = sample.image.width();
|
||||
let mut points = List::new();
|
||||
if is_same(src.get_pixel(px, py), &color) {
|
||||
points.push(Point { x: px, y: py });
|
||||
}
|
||||
|
||||
while !points.is_empty() {
|
||||
if let Some(point) = points.pop() {
|
||||
let orig_pixel = src.get_pixel(point.x, point.y);
|
||||
let x = point.x;
|
||||
let y = point.y;
|
||||
if src.get_pixel(x, y).channels() != [0, 0, 0] {
|
||||
if is_same(orig_pixel, &color) {
|
||||
let mut xx = x;
|
||||
let mut yy = y;
|
||||
while xx >= width {
|
||||
xx -= width;
|
||||
}
|
||||
while yy >= height {
|
||||
yy -= height;
|
||||
}
|
||||
dest.put_pixel(x, y, *sample.image.get_pixel(xx, yy));
|
||||
src.put_pixel(x, y, Rgb([0, 0, 0]));
|
||||
if x > 1 {
|
||||
points.push(Point::new(x - 1, y));
|
||||
}
|
||||
if y > 1 {
|
||||
points.push(Point::new(x, y - 1));
|
||||
}
|
||||
if x < src.width() - 1 {
|
||||
points.push(Point::new(x + 1, y));
|
||||
}
|
||||
if y < src.height() - 1 {
|
||||
points.push(Point::new(x, y + 1));
|
||||
}
|
||||
}
|
||||
}
|
||||
} else {
|
||||
println!("break");
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn is_same(p1: &Rgb<u8>, p2: &Rgb<u8>) -> bool {
|
||||
let p1 = p1.channels();
|
||||
let p2 = p2.channels();
|
||||
i16::abs(p1[0] as i16 - p2[0] as i16) < 4
|
||||
&& i16::abs(p1[1] as i16 - p2[1] as i16) < 4
|
||||
&& i16::abs(p1[2] as i16 - p2[2] as i16) < 4
|
||||
}
|
||||
|
||||
fn get_closest<'a>(
|
||||
color_samples: &'a Vec<ColorSample>,
|
||||
pixel: &Rgb<u8>,
|
||||
) -> Option<&'a ColorSample> {
|
||||
let mut closest = None;
|
||||
let mut min_diff: f32 = 4294967295.0; //0xFFFFFFFF
|
||||
for sample in color_samples {
|
||||
let diff = get_distance(sample.r, sample.g, sample.b, pixel);
|
||||
if diff < min_diff {
|
||||
closest = Some(sample);
|
||||
min_diff = diff;
|
||||
}
|
||||
}
|
||||
|
||||
closest
|
||||
}
|
||||
|
||||
fn get_distance(r: u8, g: u8, b: u8, c2: &Rgb<u8>) -> f32 {
|
||||
let red_dif = r as f32 - c2.channels()[0] as f32;
|
||||
let green_dif = g as f32 - c2.channels()[1] as f32;
|
||||
let blue_dif = b as f32 - c2.channels()[2] as f32;
|
||||
return f32::sqrt(red_dif * red_dif + green_dif * green_dif + blue_dif * blue_dif);
|
||||
}
|
||||
|
||||
fn read_color_samples() -> Result<Vec<ColorSample>, Box<dyn Error>> {
|
||||
let paths = fs::read_dir("samples")?;
|
||||
let mut color_samples: Vec<ColorSample> = Vec::new();
|
||||
for path in paths {
|
||||
let path = path?.path();
|
||||
let filename = path.to_str().unwrap().to_owned();
|
||||
|
||||
if filename.ends_with(".jpg") {
|
||||
let sample_image: RgbImage = image::open(&filename).unwrap().into_rgb8();
|
||||
let hex_r = &filename[8..10];
|
||||
let hex_g = &filename[10..12];
|
||||
let hex_b = &filename[12..14];
|
||||
color_samples.push(ColorSample {
|
||||
r: u8::from_str_radix(&hex_r, 16).unwrap(),
|
||||
g: u8::from_str_radix(&hex_g, 16).unwrap(),
|
||||
b: u8::from_str_radix(&hex_b, 16).unwrap(),
|
||||
image: sample_image,
|
||||
});
|
||||
}
|
||||
}
|
||||
Ok(color_samples)
|
||||
}
|
||||
|
||||
struct ColorSample {
|
||||
r: u8,
|
||||
g: u8,
|
||||
b: u8,
|
||||
image: RgbImage,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
struct List {
|
||||
head: Option<Box<Node>>,
|
||||
}
|
||||
|
||||
impl List {
|
||||
fn new() -> Self {
|
||||
Self { head: None }
|
||||
}
|
||||
fn push(&mut self, point: Point<u32>) {
|
||||
let new_node = Box::new(Node {
|
||||
value: point,
|
||||
next: self.head.take(),
|
||||
});
|
||||
|
||||
self.head = Some(new_node);
|
||||
}
|
||||
|
||||
fn pop(&mut self) -> Option<Point<u32>> {
|
||||
self.head.take().map(|node| {
|
||||
self.head = node.next;
|
||||
node.value
|
||||
})
|
||||
}
|
||||
|
||||
fn is_empty(&self) -> bool {
|
||||
self.head.is_none()
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
struct Node {
|
||||
value: Point<u32>,
|
||||
next: Option<Box<Node>>,
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod test {
|
||||
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
fn test() {
|
||||
let mut list = List::new();
|
||||
|
||||
list.push(Point::new(1, 1));
|
||||
list.push(Point::new(2, 2));
|
||||
assert_eq!(2, list.pop().unwrap().x);
|
||||
assert_eq!(1, list.pop().unwrap().x);
|
||||
}
|
||||
}
|
||||
27
static/css/style.css
Normal file
27
static/css/style.css
Normal file
|
|
@ -0,0 +1,27 @@
|
|||
html {
|
||||
font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
|
||||
color: rgb(20, 20, 104);
|
||||
}
|
||||
|
||||
.drop-zone {
|
||||
border: 4px dashed rgb(17, 122, 184);
|
||||
width: 200px;
|
||||
height: 100px;
|
||||
background-color: rgb(202, 202, 238);
|
||||
}
|
||||
|
||||
p {
|
||||
display: table;
|
||||
margin: 0 auto;
|
||||
transform: translateY(50%);
|
||||
}
|
||||
|
||||
.body > img {
|
||||
width: 25%;
|
||||
border: rgb(17, 122, 184) solid 3px;
|
||||
}
|
||||
|
||||
.photo > canvas {
|
||||
width: 25%;
|
||||
border: rgb(17, 122, 184) solid 3px;
|
||||
}
|
||||
Loading…
Add table
Reference in a new issue