ocr test

.gitignore

@@ -1,4 +1,5 @@
 /target
 
 .idea
-.DS_Store
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+tmp

Cargo.lock

@@ -1,5 +1,20 @@
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 # It is not intended for manual editing.
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+[[package]]
+name = "termcolor"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bb6bfa289a4d7c5766392812c0a1f4c1ba45afa1ad47803c11e1f407d846d75f"
+dependencies = [
+ "winapi-util",
+]
+
+[[package]]
+name = "tesseract-sys"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7e7a90e8e4b12d5c9a5124e7ecfa17a21febcfbfb9675be9348d32b6034c7bc3"
+dependencies = [
+ "bindgen",
+ "leptonica-sys",
+]
+
 [[package]]
 name = "textwrap"
 version = "0.11.0"
@@ -246,6 +773,26 @@ dependencies = [
  "unicode-width",
 ]
 
+[[package]]
+name = "thread_local"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
+dependencies = [
+ "lazy_static",
+]
+
+[[package]]
+name = "tiff"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "002351e428db1eb1d8656d4ca61947c3519ac3191e1c804d4600cd32093b77ad"
+dependencies = [
+ "byteorder",
+ "lzw",
+ "miniz_oxide",
+]
+
 [[package]]
 name = "time"
 version = "0.1.42"
@@ -263,18 +810,40 @@ version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "caaa9d531767d1ff2150b9332433f32a24622147e5ebb1f26409d5da67afd479"
 
+[[package]]
+name = "unicode-xid"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
+
 [[package]]
 name = "vec_map"
 version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a"
 
+[[package]]
+name = "version_check"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd"
+
 [[package]]
 name = "wasi"
 version = "0.9.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
 
+[[package]]
+name = "which"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b57acb10231b9493c8472b20cb57317d0679a49e0bdbee44b3b803a6473af164"
+dependencies = [
+ "failure",
+ "libc",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.8"
@@ -291,6 +860,15 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 
+[[package]]
+name = "winapi-util"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ccfbf554c6ad11084fb7517daca16cfdcaccbdadba4fc336f032a8b12c2ad80"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"

Cargo.toml

@@ -9,4 +9,7 @@ edition = "2018"
 [dependencies]
 ferris-says = "0.1.1"
 rand = "0.7.3"
-chrono = "0.4.11"
+chrono = "0.4.11"
+image = "0.23.1"
+qrcode = "0.12.0"
+leptess = "0.8.1"

src/main.rs

@@ -2,91 +2,102 @@
 // 库的入口文件统一命名为lib.rs
 
 // 引用模块
-mod test;
-mod keygen;
+// mod test;
+// mod keygen;
 
 // 将其他模块的成员声明为当前模块直接可用的，等同于java的静态引用
 // 若省略这句，下面不可以直接使用Random结构体，而需要加上模块名，即test::Random
-use self::test::Random;
-
-use std::thread;
-use std::sync::mpsc;
-use std::collections::HashMap;
-use chrono::prelude::*;
-
-use std::io::{stdout, BufWriter};
-use ferris_says::say;
+// use self::test::Random;
+//
+// use std::thread;
+// use std::sync::mpsc;
+// use std::collections::HashMap;
+// use chrono::prelude::*;
+//
+// use std::io::{stdout, BufWriter};
+// use ferris_says::say;
+
+use qrcode::QrCode;
+use image::Luma;
 
 fn main() {
-    let stdout = stdout();
-    let out = b"Hello fellow Rustaceans!";
-    let width = 24;
-
-    let mut writer = BufWriter::new(stdout.lock());
-    say(out, width, &mut writer).unwrap(); // unwrap为rust预定义错误处理模式，正常时返回OK值，错误时panic！
-
-    let rd = Random { seed: 100 };
-    println!("a random number:{}", rd.next());
-    let id = keygen::next_id();
-    println!("key from keygen:{}", id);
-    println!();
-    test_next_id();
+    // let stdout = stdout();
+    // let out = b"Hello fellow Rustaceans!";
+    // let width = 24;
+    //
+    // let mut writer = BufWriter::new(stdout.lock());
+    // say(out, width, &mut writer).unwrap(); // unwrap为rust预定义错误处理模式，正常时返回OK值，错误时panic！
+    //
+    // let rd = Random { seed: 100 };
+    // println!("a random number:{}", rd.next());
+    // let id = keygen::next_id();
+    // println!("key from keygen:{}", id);
+    // println!();
+    // test_next_id();
+
+    let code = QrCode::new(b"http://a.com").unwrap();
+    let image = code.render::<Luma<u8>>().build();
+    image.save("./tmp/qrcode.png").unwrap();
+
+    let mut lt = leptess::LepTess::new(None, "eng").unwrap();
+    lt.set_image("./tmp/qrcode.png");
+    println!("OCR result:{}", lt.get_utf8_text().unwrap());
 }
 
-fn test_next_id() {
-    let id_size = 100000;
-
-    let start_time = Utc::now().timestamp_nanos();
-    let (tx, rx) = mpsc::channel();
-
-
-    for _ in 0..id_size {
-        let tx = tx.clone();
-        thread::spawn(move || {
-            let id = keygen::next_id();
-            tx.send(id).unwrap()
-        });
-    };
-
-    let (tx2, rx2) = mpsc::channel();
-    let tx2 = tx2.clone();
-    let handle = thread::spawn(move || {
-        let mut m: HashMap<u64, i32> = HashMap::new();
-        let mut i = id_size;
-        loop {
-            let id = rx.recv().unwrap();
-            //let mut wrap = wrap.lock().unwrap();
-            if m.contains_key(&id) {
-                let v = *(m.get_mut(&id).unwrap());
-                m.insert(id, v + 1);
-            } else {
-                m.insert(id, 1);
-            }
-            i -= 1;
-            if i == 0 {
-                break;
-            }
-        }
-        tx2.send(m).unwrap();
-    });
-
-    handle.join().expect("The thread being joined has panicked");
-
-    let m = rx2.recv().unwrap();
-
-    let end_time = Utc::now().timestamp_nanos();
-    let used_time = end_time - start_time;
-    println!("Id size: {}\nTotal seconds:{}\nAvg nanos per id:{}", m.len(), used_time / 1000000000, (used_time as i64) / (id_size as i64));
-
-    let mut bad_size = 0;
-    for (_, v) in m.iter() {
-        if *v > 1 {
-            bad_size += 1;
-        }
-    }
-
-    if bad_size > 0 {
-        println!("Not good")
-    }
-}
+// fn test_next_id() {
+//     let id_size = 100000;
+//
+//     let start_time = Utc::now().timestamp_nanos();
+//     let (tx, rx) = mpsc::channel();
+//
+//
+//     for _ in 0..id_size {
+//         let tx = tx.clone();
+//         thread::spawn(move || {
+//             let id = keygen::next_id();
+//             tx.send(id).unwrap()
+//         });
+//     };
+//
+//     let (tx2, rx2) = mpsc::channel();
+//     let tx2 = tx2.clone();
+//     let handle = thread::spawn(move || {
+//         let mut m: HashMap<u64, i32> = HashMap::new();
+//         let mut i = id_size;
+//         loop {
+//             let id = rx.recv().unwrap();
+//             //let mut wrap = wrap.lock().unwrap();
+//             if m.contains_key(&id) {
+//                 let v = *(m.get_mut(&id).unwrap());
+//                 m.insert(id, v + 1);
+//             } else {
+//                 m.insert(id, 1);
+//             }
+//             i -= 1;
+//             if i == 0 {
+//                 break;
+//             }
+//         }
+//         tx2.send(m).unwrap();
+//     });
+//
+//     handle.join().expect("The thread being joined has panicked");
+//
+//     let m = rx2.recv().unwrap();
+//
+//     let end_time = Utc::now().timestamp_nanos();
+//     let used_time = end_time - start_time;
+//     println!("Id size: {}\nTotal seconds:{}\nAvg nanos per id:{}", m.len(), used_time / 1000000000, (used_time as i64) / (id_size as i64));
+//
+//     let mut bad_size = 0;
+//     for (_, v) in m.iter() {
+//         if *v > 1 {
+//             bad_size += 1;
+//         }
+//     }
+//
+//     if bad_size > 0 {
+//         println!("Not good")
+//     }
+// }