code-boxx/0-PHP-OCR.MD

## 0-PHP-OCR.MD

      
    Raw
  

              0-PHP-OCR.MD
            
          
    PHP IMAGE TO TEXT USING OCR

https://code-boxx.com/php-image-to-text-ocr/
TEST IMAGE


LICENSE

Copyright by Code Boxx
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.

  
## 1-tesseract.php
<?php
// (A) SETTINGS - CHANGE TO YOUR OWN!
$tes = "C:/Program Files/Tesseract-OCR/tesseract.exe"; // path to tesseract
$img = __DIR__ . DIRECTORY_SEPARATOR . "test.png"; // image to read
$lang = "eng"; // language

// (B) RUN TESSERACT IN TERMINAL
// https://github.com/tesseract-ocr/tesseract
$cmd = "\"$tes\" $img - -l $lang";
$result = shell_exec($cmd);

// (C) OPTIONAL - STRIP LINE BREAKS
$result = str_replace("\n", " ", $result);
echo $result;

## 2a-tesseract-js.html
<!DOCTYPE html>
<html>
  <head>
    <title>Tesseract JS</title>
    <meta charset="utf-8">
  </head>
  <body>
    <!-- (A) FILE SELECTOR -->
    <input type="file" id="select" accept="image/png, image/gif, image/webp, image/jpeg">

    <!-- (B) LOAD TESSERACT -->
    <!-- https://cdnjs.com/libraries/tesseract.js -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/tesseract.js/4.0.6/tesseract.min.js"></script>

    <!-- (C) INIT -->
    <script>
    window.addEventListener("load", async () => {
      // (C1) GET HTML FILE SELECTOR
      const hSel = document.getElementById("select");

      // (C2) CREATE ENGLISH WORKER
      const worker = await Tesseract.createWorker();
      await worker.loadLanguage("eng");
      await worker.initialize("eng");

      // (C3) ON FILE SELECT
      hSel.onchange = async () => {
        // (C3-1) IMAGE TO TEXT
        const res = await worker.recognize(hSel.files[0]);

        // (C3-2) UPLOAD TO SERVER
        let data = new FormData();
        data.append("text", res.data.text);
        fetch("2b-save.php", { method:"post", body:data })
        .then(res => res.text())
        .then(txt => console.log(txt))
        .catch(err => console.error(err));
      };
    });
    </script>
  </body>
</html>

## 2b-save.php
<?php
print_r($_POST);
file_put_contents("demo.txt", $_POST["text"]);

## 3-google-vision.txt
https://cloud.google.com/vision
https://cloud.google.com/vision/docs/ocr
	<?php
	// (A) SETTINGS - CHANGE TO YOUR OWN!
	$tes = "C:/Program Files/Tesseract-OCR/tesseract.exe"; // path to tesseract
	$img = __DIR__ . DIRECTORY_SEPARATOR . "test.png"; // image to read
	$lang = "eng"; // language

	// (B) RUN TESSERACT IN TERMINAL
	// https://github.com/tesseract-ocr/tesseract
	$cmd = "\"$tes\" $img - -l $lang";
	$result = shell_exec($cmd);

	// (C) OPTIONAL - STRIP LINE BREAKS
	$result = str_replace("\n", " ", $result);
	echo $result;
	<!DOCTYPE html>
	<html>
	<head>
	<title>Tesseract JS</title>
	<meta charset="utf-8">
	</head>
	<body>
	<!-- (A) FILE SELECTOR -->
	<input type="file" id="select" accept="image/png, image/gif, image/webp, image/jpeg">

	<!-- (B) LOAD TESSERACT -->
	<!-- https://cdnjs.com/libraries/tesseract.js -->
	<script src="https://cdnjs.cloudflare.com/ajax/libs/tesseract.js/4.0.6/tesseract.min.js"></script>

	<!-- (C) INIT -->
	<script>
	window.addEventListener("load", async () => {
	// (C1) GET HTML FILE SELECTOR
	const hSel = document.getElementById("select");

	// (C2) CREATE ENGLISH WORKER
	const worker = await Tesseract.createWorker();
	await worker.loadLanguage("eng");
	await worker.initialize("eng");

	// (C3) ON FILE SELECT
	hSel.onchange = async () => {
	// (C3-1) IMAGE TO TEXT
	const res = await worker.recognize(hSel.files[0]);

	// (C3-2) UPLOAD TO SERVER
	let data = new FormData();
	data.append("text", res.data.text);
	fetch("2b-save.php", { method:"post", body:data })
	.then(res => res.text())
	.then(txt => console.log(txt))
	.catch(err => console.error(err));
	};
	});
	</script>
	</body>
	</html>
	<?php
	print_r($_POST);
	file_put_contents("demo.txt", $_POST["text"]);
	https://cloud.google.com/vision
	https://cloud.google.com/vision/docs/ocr