How can the use of imagecopy over imagecopyresampled prevent issues with black corners in images processed by PHP?

When using imagecopyresampled in PHP to resize images, black corners may appear due to the interpolation method used. To prevent this issue, you can use imagecopy instead of imagecopyresampled. Imagecopy maintains the original image quality without introducing black corners. 

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

// Create a new image with the desired dimensions
$dst = imagecreatetruecolor($new_width, $new_height);

// Copy and resize the original image to the new image without introducing black corners
imagecopy($dst, $src, 0, 0, 0, 0, $new_width, $new_height);

// Save or output the resized image
imagejpeg($dst, 'resized.jpg');

// Free up memory
imagedestroy($src);
imagedestroy($dst);

Keywords

imagecopy imagecopyresampled black corners images PHP

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