imgref
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kornelski
How can I implement a trait for `imgref::Img<std::vec::Vec<i32>>`
I'm trying to use inline-python to get a pic from OpenCV camera, then manipulate this image with Rust, so I wrote the below code that catch the photo correctly, but once I try to handle it in Rust using imgref I get the below error:
error[E0277]: the trait bound `imgref::Img<std::vec::Vec<i32>>: pyo3::pyclass::PyClass` is not satisfied
--> src\main.rs:44:44
|
44 | let img: Img<Vec<i32>> = c.get("frame");
| ^^^ the trait `pyo3::pyclass::PyClass` is not implemented for `imgref::Img<std::vec::Vec<i32>>`
|
= note: required because of the requirements on the impl of `for<'p> pyo3::conversion::FromPyObject<'p>` for `imgref::Img<std::vec::Vec<i32>>`
The full code is:
#![feature(proc_macro_hygiene)]
use inline_python::*;
use imgref::*;
use web_view::*;
fn main() {
let c = Context::new();
web_view::builder()
.title("Call open CV")
.content(Content::Html(HTML))
.size(800, 600)
.user_data(())
.invoke_handler(|_, arg| {
match arg {
"open" => {
c.run(python! {
import cv2
x = 2
cap = cv2.VideoCapture(0)
ret, frame = cap.read()
cv2.imshow('frame', frame)
cv2.waitKey(0)
})
},
"close" => {
let img: Img<Vec<i32>> = c.get("frame");
},
_ => (),
}
Ok(())
}).run()
.unwrap();
}
const HTML: &str = r#"
<!doctype html>
<html>
<body>
<button onclick="external.invoke('open')">Run</button>
<button onclick="external.invoke('close')">Close</button><br>
<br>
</body>
</html>
"#;
Can you help, Thanks.
