Imagick::deskewImage

Removes skew from the image

&reftitle.description; public `bool` `Imagick::deskewImage` `float` `threshold`

This method can be used to remove skew from for example scanned images where the paper was not properly placed on the scanning surface. &imagick.method.available.0x645;

&reftitle.parameters;

`threshold`

- Deskew threshold

&reftitle.returnvalues;

&reftitle.examples;

### `Imagick::deskewImage`

    <?php
    function deskewImage($threshold) {
        $imagick = new \Imagick(realpath("images/NYTimes-Page1-11-11-1918.jpg"));
        $deskewImagick = clone $imagick;

        //This is the only thing required for deskewing.
        $deskewImagick->deskewImage($threshold);

        //The rest of this example is to make the result obvious - because
        //otherwise the result is not obvious.
        $trim = 9;

        $deskewImagick->cropImage($deskewImagick->getImageWidth() - $trim, $deskewImagick->getImageHeight(), $trim, 0);
        $imagick->cropImage($imagick->getImageWidth() - $trim, $imagick->getImageHeight(), $trim, 0);
        $deskewImagick->resizeimage($deskewImagick->getImageWidth() / 2, $deskewImagick->getImageHeight() / 2, \Imagick::FILTER_LANCZOS, 1);
        $imagick->resizeimage($imagick->getImageWidth() / 2, $imagick->getImageHeight() / 2, \Imagick::FILTER_LANCZOS, 1);
        $newCanvas = new \Imagick();
        $newCanvas->newimage($imagick->getImageWidth() + $deskewImagick->getImageWidth() + 20, $imagick->getImageHeight(), 'red', 'jpg');
        $newCanvas->compositeimage($imagick, \Imagick::COMPOSITE_COPY, 5, 0);
        $newCanvas->compositeimage($deskewImagick, \Imagick::COMPOSITE_COPY, $imagick->getImageWidth() + 10, 0);

        header("Content-Type: image/jpg");
        echo $newCanvas->getImageBlob();
    }

    ?>