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我正在尝试将图像转换为二进制数据,但没有在 php 中获得解决方案。请帮忙

试图实现类似这个 url 的东西。 https://www.dcode.fr/binary-image

1. 上传图片并转换。2. 这会将我的图像转换为二进制 0 和 1 格式。尝试使用简单的上传表单在 php 中做同样的事情。

任何帮助将不胜感激。

4

1 回答 1

3

互联网上有很多上传图片教程,所以让您自己弄清楚。

用于将图像转换为二进制。您基本上循环图像并查看每个像素,然后根据其颜色输出 1 或 0。

function img_to_bin($file, $scale = 100, $fudge = 0) {

    if (!is_int($scale)) {
        throw new InvalidArgumentException('Scale argument invalid expecting int, got: '.gettype($scale));
    }

    $info = getimagesize($file);
    $mime = $info['mime'];

    switch ($mime) {
        case 'image/jpeg':
            $image_create = 'imagecreatefromjpeg';
            break;

        case 'image/png':
            $image_create = 'imagecreatefrompng';
            break;

        case 'image/gif':
            $image_create = 'imagecreatefromgif';
            break;

        default: 
            throw new InvalidArgumentException('Unsupported image type: '.$mime);
    }

    $return = null;

    $img = $image_create($file);
    $img = imagescale($img, $scale, $scale);

    $width = imagesx($img);
    $height = imagesy($img);

    for ($y=0; $y < $height; $y++) {
        $line = [];
        for ($x=0; $x < $width; $x++) {
            // get current pixel colour
            $rgb = imagecolorat($img, $x, $y);
            $r = ($rgb >> 16) & 0xFF;
            $g = ($rgb >> 8 ) & 0xFF;
            $b = $rgb & 0xFF;
            $pixel = ($r + $g + $b)/3;

            // value above 0(white) is 1 
            if ($pixel > $fudge) {
                $line[] = "1";
            } else {
                $line[] = "0";
            }
        }

        $return .= implode('', $line).PHP_EOL;
    }
    return $return;
}

echo img_to_bin("./face.png", 50).PHP_EOL;

所以对于像这样的图像:

在此处输入图像描述

将输出:

00000000000000000000000000000000000000000000000000
00000000000000000000011111111100000000000000000000
00000000000000000011111111111111100000000000000000
00000000000000011111111111111111111100000000000000
00000000000000111111111111111111111110000000000000
00000000000011111111111111111111111111100000000000
00000000000111111111111111111111111111110000000000
00000000001111111111111111111111111111111000000000
00000000011111111111111111111111111111111100000000
00000000111111111111111111111111111111111110000000
00000001111111111111111111111111111111111111000000
00000011111111111111111111111111111111111111100000
00000111111111111111111111111111111111111111110000
00001111111111111111111111101111111111111111111000
00001111111111100111111111000111111111111111111000
00001111111111000111111111000111111111111111111000
00011111111111000111111110000111111111111111111100
00011111111111000111111110001111111111111111111100
00011111111111101111111111011111111111111111111100
00011111111111111111111111111111111111111111111100
00011110011111111111111111111111111111011111111100
00011110011111111111111111111111111111001111111100
00001111101111111111111111111111111110011111111000
00001111110111111111111111111111111101111111111000
00000111111011111111111111111111111011111111110000
00000111111100111111111111111111110111111111110000
00000011111110011111111111111111001111111111100000
00000011111111100111111111111110111111111111100000
00000001111111111001111111111001111111111111000000
00000000111111111110000000001111111111111110000000
00000000011111111111111111111111111111111100000000
00000000001111111111111111111111111111111000000000
00000000000111111111111111111111111111110000000000
00000000000011111111111111111111111111100000000000
00000000000000111111111111111111111110000000000000
00000000000000011111111111111111111100000000000000
00000000000000000011111111111111100000000000000000
00000000000000000000001111111000000000000000000000
00000000000000000000000000000000000000000000000000
于 2017-12-30T05:50:16.297 回答