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twistedfall / opencv-rust

Rust bindings for OpenCV 3 & 4
MIT License
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Segmentation fault when using tensorflow and tesseract together with opencv #260

Open Kavan72 opened 3 years ago

Kavan72 commented 3 years ago

I'm getting segmentation fault (core dumped) while reading image from path using imread. i've noticed weird thing if i import tensorflow lib then only i'm getting this error

and if i remove imread code and just print tensorflow version using this line 

print!("{}", tensorflow::version().unwrap());

then it's working fine

  1. Operating system => ubuntu 20.04
  2. The way you installed OpenCV: => apt package
  3. OpenCV version => 4.2.0
  4. rustc version => rustc 1.54.0 (a178d0322 2021-07-26)
  5.    Fresh pkg-config v0.3.19
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   Fresh opencv-binding-generator v0.28.0 (https://github.com/twistedfall/opencv-rust.git#9bbcd64f)
   Fresh curl v0.4.38
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   Fresh opencv v0.53.1 (https://github.com/twistedfall/opencv-rust.git#9bbcd64f)
   Fresh tensorflow-sys v0.20.0 (https://github.com/tensorflow/rust.git#7c1d9c8e)
   Fresh tensorflow v0.17.0 (https://github.com/tensorflow/rust.git#7c1d9c8e)
   Fresh load_model_in_rust v0.1.0 (/media/kavan/WORK/Self/load_model_in_rust)
Finished dev [unoptimized + debuginfo] target(s) in 0.10s
twistedfall commented 3 years ago

Can you please share the minimum code example that I can use to reproduce this issue?

Kavan72 commented 3 years ago 
#[warn(unused_imports)]
#[warn(dead_code)]
use opencv::prelude::*;

use std::error::Error;

use tensorflow;

fn main() -> Result<(), Box<dyn Error>> {

    print!("{}", tensorflow::version().unwrap());

    let mut img = opencv::imgcodecs::imread(
        "/home/kavan/Downloads/test.jpeg", 
        opencv::imgcodecs::IMREAD_GRAYSCALE
    );

    Ok(())
}

here is my main.rs file 

[package]
name = "load_model_in_rust"
version = "0.1.0"
edition = "2018"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
tensorflow = { git = "https://github.com/tensorflow/rust.git" }
opencv = { git = "https://github.com/twistedfall/opencv-rust.git" }

here is my Cargo.toml file

twistedfall commented 3 years ago

I can confirm the issue, that's really weird indeed. It's reproducible using the repository version of OpenCV under Ubuntu 20.08, but I can't reproduce it on my local machine for example. There is even no need to call any tensorflow functions, just use tensorflow; is enough. I'll try to investigate it.

jackos commented 2 years ago

I've run into this same issue on arch linux using the opencv from pacman, but if I build opencv myself and link that in it works fine.

slavb18 commented 2 years ago

hi @twistedfall any news about this bug?

twistedfall commented 2 years ago

@slavb18 Not really, it's a very difficult thing to debug. Workaround by building the OpenCV from source should work