diff --git a/app/Captcha/Contracts/ImageLines.php b/app/Captcha/Contracts/ImageLines.php
new file mode 100644
index 0000000..5657006
--- /dev/null
+++ b/app/Captcha/Contracts/ImageLines.php
@@ -0,0 +1,8 @@
+<?php declare(strict_types=1);
+
+namespace App\Captcha\Contracts;
+
+interface ImageLines
+{
+    public function processing(Image $image, array $colors, int $lines = 3): Image;
+}
diff --git a/app/Captcha/Images/Lines.php b/app/Captcha/Images/Lines.php
new file mode 100644
index 0000000..9b4a47c
--- /dev/null
+++ b/app/Captcha/Images/Lines.php
@@ -0,0 +1,36 @@
+<?php declare(strict_types=1);
+
+namespace App\Captcha\Images;
+
+use App\Captcha\Contracts\ImageLines;
+use Illuminate\Support\Arr;
+use App\Captcha\Contracts\Image as ImageContract;
+
+class Lines implements ImageLines
+{
+    public function processing(ImageContract $image, array $colors, $lines = 3): ImageContract
+    {
+        $imageWidth = $image->getWidth();
+        $imageHeight = $image->getHeight();
+        for ($i = 0; $i <= $lines; $i++) {
+            $image->addLine(
+                x1: mt_rand(0, $imageWidth) + $i * mt_rand(0, $imageHeight),
+                y1: mt_rand(0, $imageHeight),
+                x2: mt_rand(0, $imageWidth),
+                y2: mt_rand(0, $imageHeight),
+                hexColor: $this->lineColors($colors)
+            );
+        }
+
+        return $image;
+    }
+
+    private function lineColors(array $colors): string
+    {
+        if (!empty($colors)) {
+            return Arr::random($colors);
+        }
+
+        return '#' . str_pad(dechex(mt_rand(0, 0xFFFFFF)), 6, '0', STR_PAD_LEFT);
+    }
+}