How can PHP be used to improve image quality?

To improve image quality using PHP, you can utilize the GD library functions to resize, compress, and enhance images. By resizing images to the appropriate dimensions and adjusting the compression level, you can effectively improve the image quality while reducing file size. 

// Load the image
$image = imagecreatefromjpeg('image.jpg');

// Resize the image
$newWidth = 800;
$newHeight = 600;
$resizedImage = imagecreatetruecolor($newWidth, $newHeight);
imagecopyresampled($resizedImage, $image, 0, 0, 0, 0, $newWidth, $newHeight, imagesx($image), imagesy($image));

// Compress and save the image
imagejpeg($resizedImage, 'new_image.jpg', 80);

// Free up memory
imagedestroy($image);
imagedestroy($resizedImage);

Keywords

image processing image quality PHP functions image manipulation GD library

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