aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--.gitignore6
-rw-r--r--Cargo.toml53
-rw-r--r--LICENSE_APACHE176
-rw-r--r--LICENSE_MIT25
-rw-r--r--README.md1
-rw-r--r--data/0.pngbin0 -> 402 bytes
-rw-r--r--data/1.pngbin0 -> 235 bytes
-rw-r--r--data/2.pngbin0 -> 326 bytes
-rw-r--r--data/2021-12-03 18-22-11.pngbin0 -> 1860275 bytes
-rw-r--r--data/3.pngbin0 -> 368 bytes
-rw-r--r--data/4.pngbin0 -> 331 bytes
-rw-r--r--data/5.pngbin0 -> 357 bytes
-rw-r--r--data/6.pngbin0 -> 397 bytes
-rw-r--r--data/7.pngbin0 -> 337 bytes
-rw-r--r--data/8.pngbin0 -> 386 bytes
-rw-r--r--data/9.pngbin0 -> 373 bytes
-rw-r--r--data/test.pngbin0 -> 1567 bytes
-rw-r--r--index.html91
-rw-r--r--src/lib.rs158
-rw-r--r--src/ocr.rs50
-rw-r--r--tests/web.rs13
21 files changed, 573 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4e30131
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+/target
+**/*.rs.bk
+Cargo.lock
+bin/
+pkg/
+wasm-pack.log
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..767c8b8
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,53 @@
+[package]
+name = "queue-go-brrr"
+version = "0.1.0"
+authors = ["Melody Horn <melody@boringcactus.com>"]
+edition = "2018"
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[dependencies]
+base64 = "0.13.0"
+gloo = "0.4.0"
+image = "0.23.14"
+imageproc = "0.22.0"
+js-sys = "0.3.55"
+wasm-bindgen = "0.2.63"
+wasm-bindgen-futures = "0.4.28"
+web-sys = { version = "0.3.55", features = [
+ "Window",
+ "Navigator",
+ "MediaDevices",
+ "DisplayMediaStreamConstraints",
+ "MediaStream",
+ "MediaStreamTrack",
+ "Document",
+ "Element",
+ "HtmlVideoElement",
+ "HtmlMediaElement",
+ "EventTarget",
+ "HtmlCanvasElement",
+ "CanvasRenderingContext2d",
+ "Blob",
+] }
+
+# The `console_error_panic_hook` crate provides better debugging of panics by
+# logging them with `console.error`. This is great for development, but requires
+# all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
+# code size when deploying.
+console_error_panic_hook = "0.1.6"
+
+# `wee_alloc` is a tiny allocator for wasm that is only ~1K in code size
+# compared to the default allocator's ~10K. It is slower than the default
+# allocator, however.
+#
+# Unfortunately, `wee_alloc` requires nightly Rust when targeting wasm for now.
+wee_alloc = { version = "0.4.5", optional = true }
+
+[dev-dependencies]
+wasm-bindgen-test = "0.3.13"
+
+[profile.release]
+# Tell `rustc` to optimize for small code size.
+opt-level = "s"
diff --git a/LICENSE_APACHE b/LICENSE_APACHE
new file mode 100644
index 0000000..1b5ec8b
--- /dev/null
+++ b/LICENSE_APACHE
@@ -0,0 +1,176 @@
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
+ the copyright owner that is granting the License.
+
+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
+ control with that entity. For the purposes of this definition,
+ "control" means (i) the power, direct or indirect, to cause the
+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
+
+ "Source" form shall mean the preferred form for making modifications,
+ including but not limited to software source code, documentation
+ source, and configuration files.
+
+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
+
+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
+ subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
+ publicly display, publicly perform, sublicense, and distribute the
+ Work and such Derivative Works in Source or Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
+ by such Contributor that are necessarily infringed by their
+ Contribution(s) alone or by combination of their Contribution(s)
+ with the Work to which such Contribution(s) was submitted. If You
+ institute patent litigation against any entity (including a
+ cross-claim or counterclaim in a lawsuit) alleging that the Work
+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
+ attribution notices from the Source form of the Work,
+ excluding those notices that do not pertain to any part of
+ the Derivative Works; and
+
+ (d) If the Work includes a "NOTICE" text file as part of its
+ distribution, then any Derivative Works that You distribute must
+ include a readable copy of the attribution notices contained
+ within such NOTICE file, excluding those notices that do not
+ pertain to any part of the Derivative Works, in at least one
+ of the following places: within a NOTICE text file distributed
+ as part of the Derivative Works; within the Source form or
+ documentation, if provided along with the Derivative Works; or,
+ within a display generated by the Derivative Works, if and
+ wherever such third-party notices normally appear. The contents
+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
+
+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
diff --git a/LICENSE_MIT b/LICENSE_MIT
new file mode 100644
index 0000000..58b622c
--- /dev/null
+++ b/LICENSE_MIT
@@ -0,0 +1,25 @@
+Copyright (c) 2018 Melody Horn <melody@boringcactus.com>
+
+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.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..161cd8e
--- /dev/null
+++ b/README.md
@@ -0,0 +1 @@
+penis
diff --git a/data/0.png b/data/0.png
new file mode 100644
index 0000000..1839598
--- /dev/null
+++ b/data/0.png
Binary files differ
diff --git a/data/1.png b/data/1.png
new file mode 100644
index 0000000..981bdeb
--- /dev/null
+++ b/data/1.png
Binary files differ
diff --git a/data/2.png b/data/2.png
new file mode 100644
index 0000000..4c6223f
--- /dev/null
+++ b/data/2.png
Binary files differ
diff --git a/data/2021-12-03 18-22-11.png b/data/2021-12-03 18-22-11.png
new file mode 100644
index 0000000..048d954
--- /dev/null
+++ b/data/2021-12-03 18-22-11.png
Binary files differ
diff --git a/data/3.png b/data/3.png
new file mode 100644
index 0000000..f64a796
--- /dev/null
+++ b/data/3.png
Binary files differ
diff --git a/data/4.png b/data/4.png
new file mode 100644
index 0000000..2fb37fa
--- /dev/null
+++ b/data/4.png
Binary files differ
diff --git a/data/5.png b/data/5.png
new file mode 100644
index 0000000..f1f853c
--- /dev/null
+++ b/data/5.png
Binary files differ
diff --git a/data/6.png b/data/6.png
new file mode 100644
index 0000000..a43b8f5
--- /dev/null
+++ b/data/6.png
Binary files differ
diff --git a/data/7.png b/data/7.png
new file mode 100644
index 0000000..49965a6
--- /dev/null
+++ b/data/7.png
Binary files differ
diff --git a/data/8.png b/data/8.png
new file mode 100644
index 0000000..62cb7e2
--- /dev/null
+++ b/data/8.png
Binary files differ
diff --git a/data/9.png b/data/9.png
new file mode 100644
index 0000000..9f43ec3
--- /dev/null
+++ b/data/9.png
Binary files differ
diff --git a/data/test.png b/data/test.png
new file mode 100644
index 0000000..0492aaa
--- /dev/null
+++ b/data/test.png
Binary files differ
diff --git a/index.html b/index.html
new file mode 100644
index 0000000..b7c0153
--- /dev/null
+++ b/index.html
@@ -0,0 +1,91 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+ <meta charset="UTF-8">
+ <title>queue go brrr</title>
+ <style>
+ #video {
+ border: 1px solid black;
+ box-shadow: 2px 2px 3px black;
+ height:240px;
+ }
+
+ #photo {
+ border: 1px solid black;
+ box-shadow: 2px 2px 3px black;
+ height:240px;
+ }
+
+ #canvas {
+ display:none;
+ }
+
+ .camera {
+ width: 340px;
+ display:inline-block;
+ }
+
+ .output {
+ width: 340px;
+ display:inline-block;
+ }
+
+ #startbutton {
+ display:block;
+ position:relative;
+ margin-left:auto;
+ margin-right:auto;
+ bottom:32px;
+ background-color: rgba(0, 150, 0, 0.5);
+ border: 1px solid rgba(255, 255, 255, 0.7);
+ box-shadow: 0 0 1px 2px rgba(0, 0, 0, 0.2);
+ font-size: 14px;
+ font-family: "Lucida Grande", "Arial", sans-serif;
+ color: rgba(255, 255, 255, 1.0);
+ }
+
+ main {
+ font-size: 16px;
+ font-family: "Lucida Grande", "Arial", sans-serif;
+ width: 760px;
+ }
+ </style>
+</head>
+<body>
+<main>
+ <button id="bootbutton">Start!</button>
+ <div class="camera">
+ <video id="video">Video stream not available.</video>
+ <button id="startbutton">Take photo</button>
+ </div>
+ <canvas id="canvas">
+ </canvas>
+ <div class="output">
+ <img id="photo" alt="The screen capture will appear in this box.">
+ </div>
+</main>
+<!-- Note the usage of `type=module` here as this is an ES6 module -->
+<script type="module">
+ // Use ES module import syntax to import functionality from the module
+ // that we have compiled.
+ //
+ // Note that the `default` import is an initialization function which
+ // will "boot" the module and make it ready to use. Currently browsers
+ // don't support natively imported WebAssembly as an ES module, but
+ // eventually the manual initialization won't be required!
+ import init, { boot } from './pkg/queue_go_brrr.js';
+
+ async function run() {
+ await init();
+
+ const bootButton = document.getElementById('bootbutton');
+ bootButton.addEventListener('click', () => {
+ bootButton.remove();
+ boot();
+ });
+ }
+
+ run();
+</script>
+</body>
+</html> \ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..8f28199
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,158 @@
+use image::{DynamicImage, ImageFormat};
+use std::rc::Rc;
+use std::sync::atomic::Ordering::Relaxed;
+use std::sync::atomic::{AtomicBool, AtomicU32, Ordering};
+
+use js_sys::{ArrayBuffer, Uint8Array};
+use wasm_bindgen::prelude::*;
+use wasm_bindgen::JsCast;
+use wasm_bindgen_futures::*;
+use web_sys::*;
+
+mod ocr;
+
+// When the `wee_alloc` feature is enabled, use `wee_alloc` as the global
+// allocator.
+#[cfg(feature = "wee_alloc")]
+#[global_allocator]
+static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
+
+async fn blob_to_image(blob: Blob) -> DynamicImage {
+ let array_buffer_promise = blob.array_buffer();
+ let array_buffer: ArrayBuffer = JsFuture::from(array_buffer_promise)
+ .await
+ .unwrap()
+ .dyn_into()
+ .unwrap();
+ let image_array = Uint8Array::new(&array_buffer);
+ let image_data = image_array.to_vec();
+ image::load_from_memory_with_format(&image_data, ImageFormat::Png).unwrap()
+}
+
+fn image_to_data_uri(image: &DynamicImage) -> String {
+ let mut result = String::from("data:image/png;base64,");
+ let mut enc = base64::write::EncoderStringWriter::from(&mut result, base64::STANDARD);
+ image.write_to(&mut enc, ImageFormat::Png).unwrap();
+ let _ = enc.into_inner();
+ result
+}
+
+fn get_queue_size(image: DynamicImage) -> DynamicImage {
+ let useful_region = image.crop_imm(911, 514, 70, 20);
+
+ useful_region
+}
+
+#[cfg(test)]
+#[test]
+fn test_queue_size() {
+ let image = image::open("data/2021-12-03 18-22-11.png").unwrap();
+ let queue_size = get_queue_size(image);
+ queue_size.save("data/test.png").unwrap();
+ let result = ocr::ocr(queue_size);
+ assert_eq!(result, 4_480);
+}
+
+async fn do_boot() {
+ let width = Rc::new(AtomicU32::new(0));
+ let height = Rc::new(AtomicU32::new(0));
+
+ let streaming = AtomicBool::new(false);
+
+ let window = window().unwrap();
+ let document = window.document().unwrap();
+
+ let video: HtmlVideoElement = document
+ .get_element_by_id("video")
+ .unwrap()
+ .dyn_into()
+ .unwrap();
+ let canvas: HtmlCanvasElement = document
+ .get_element_by_id("canvas")
+ .unwrap()
+ .dyn_into()
+ .unwrap();
+ let photo = document.get_element_by_id("photo").unwrap();
+ let start_button = document.get_element_by_id("startbutton").unwrap();
+
+ let navigator = window.navigator();
+ let media_devices = navigator.media_devices().unwrap();
+ let constraints = {
+ let mut constraints = DisplayMediaStreamConstraints::new();
+ constraints.audio(&JsValue::FALSE);
+ constraints.video(&JsValue::TRUE);
+ constraints
+ };
+ let capture_stream_promise = media_devices
+ .get_display_media_with_constraints(&constraints)
+ .unwrap();
+ let capture_stream = JsFuture::from(capture_stream_promise).await.unwrap();
+ let capture_stream: MediaStream = capture_stream.dyn_into().unwrap();
+ video.set_src_object(Some(&capture_stream));
+ let video_listener = {
+ let width = width.clone();
+ let height = height.clone();
+ let video = video.clone();
+ let also_video = video.clone();
+ let canvas = canvas.clone();
+ gloo::events::EventListener::new(&video, "canplay", move |_event| {
+ let _ = also_video.play().unwrap();
+ if !streaming.load(Relaxed) {
+ width.store(also_video.video_width(), Relaxed);
+ height.store(also_video.video_height(), Relaxed);
+ canvas.set_attribute("width", &format!("{}", width.load(Relaxed)));
+ canvas.set_attribute("height", &format!("{}", height.load(Relaxed)));
+ streaming.store(true, Relaxed);
+ }
+ })
+ };
+ video_listener.forget();
+
+ let start_button_event_listener = {
+ let photo = photo.clone();
+ gloo::events::EventListener::new(&start_button, "click", move |_event| {
+ let context = canvas.get_context("2d").unwrap().unwrap();
+ let context: CanvasRenderingContext2d = context.dyn_into().unwrap();
+ canvas.set_width(width.load(Ordering::Relaxed));
+ canvas.set_height(height.load(Ordering::Relaxed));
+ context
+ .draw_image_with_html_video_element_and_dw_and_dh(
+ &video,
+ 0.0,
+ 0.0,
+ width.load(Relaxed).into(),
+ height.load(Relaxed).into(),
+ )
+ .unwrap();
+
+ canvas
+ .to_blob(
+ Closure::once_into_js(|data: Blob| {
+ console::log_1(&JsValue::from("hewwo?"));
+ // lifetime bullshit here
+ let window = web_sys::window().unwrap();
+ let document = window.document().unwrap();
+ let photo = document.get_element_by_id("photo").unwrap();
+ spawn_local(async move {
+ let image = blob_to_image(data).await;
+ let useful_region = get_queue_size(image);
+ let data_uri = image_to_data_uri(&useful_region);
+ photo.set_attribute("src", &data_uri).unwrap();
+ console::log_1(&JsValue::from("uhhhh hi"));
+ })
+ })
+ .dyn_ref()
+ .unwrap(),
+ )
+ .unwrap();
+ })
+ };
+ start_button_event_listener.forget();
+}
+
+#[wasm_bindgen]
+pub fn boot() {
+ console_error_panic_hook::set_once();
+
+ spawn_local(do_boot());
+}
diff --git a/src/ocr.rs b/src/ocr.rs
new file mode 100644
index 0000000..bc7e535
--- /dev/null
+++ b/src/ocr.rs
@@ -0,0 +1,50 @@
+use image::{DynamicImage, GrayImage, ImageFormat};
+use imageproc::template_matching::MatchTemplateMethod;
+
+const REFERENCE_PNGS: [&[u8]; 10] = [
+ include_bytes!("../data/0.png"),
+ include_bytes!("../data/1.png"),
+ include_bytes!("../data/2.png"),
+ include_bytes!("../data/3.png"),
+ include_bytes!("../data/4.png"),
+ include_bytes!("../data/5.png"),
+ include_bytes!("../data/6.png"),
+ include_bytes!("../data/7.png"),
+ include_bytes!("../data/8.png"),
+ include_bytes!("../data/9.png"),
+];
+
+fn x_matches(image: &GrayImage, template: &GrayImage) -> Vec<u32> {
+ let match_values = imageproc::template_matching::match_template(
+ image,
+ template,
+ MatchTemplateMethod::CrossCorrelationNormalized,
+ );
+ match_values
+ .enumerate_pixels()
+ .filter(|(_x, _y, pix)| pix.0[0] > 0.9)
+ .map(|(x, _y, _pix)| x)
+ .collect()
+}
+
+pub fn ocr(image: DynamicImage) -> u32 {
+ let grayscale_image = image::imageops::grayscale(&image);
+ let mut digit_x_positions: Vec<(u8, u32)> = (0..10)
+ .flat_map(|i| {
+ let png_i =
+ image::load_from_memory_with_format(REFERENCE_PNGS[i as usize], ImageFormat::Png)
+ .unwrap();
+ let grey_png_i = image::imageops::grayscale(&png_i);
+ x_matches(&grayscale_image, &grey_png_i)
+ .into_iter()
+ .map(move |x| (i, x))
+ })
+ .collect();
+ digit_x_positions.sort_by_key(|&(_i, x)| x);
+ let digits: String = digit_x_positions
+ .into_iter()
+ .map(|(i, _x)| format!("{}", i))
+ .collect();
+ dbg!(&digits);
+ digits.parse().unwrap()
+}
diff --git a/tests/web.rs b/tests/web.rs
new file mode 100644
index 0000000..de5c1da
--- /dev/null
+++ b/tests/web.rs
@@ -0,0 +1,13 @@
+//! Test suite for the Web and headless browsers.
+
+#![cfg(target_arch = "wasm32")]
+
+extern crate wasm_bindgen_test;
+use wasm_bindgen_test::*;
+
+wasm_bindgen_test_configure!(run_in_browser);
+
+#[wasm_bindgen_test]
+fn pass() {
+ assert_eq!(1 + 1, 2);
+}