Imagemagick does not set image to exact sizes - php

Question

I have an image that i want to set to 1024 x 768 and this is the code i am using
<?php
function autoRotateImage($image) {
$orientation = $image->getImageOrientation();
switch($orientation) {
case imagick::ORIENTATION_BOTTOMRIGHT:
$image->rotateimage("#000", 180); // rotate 180 degrees
break;
case imagick::ORIENTATION_RIGHTTOP:
$image->rotateimage("#000", 90); // rotate 90 degrees CW
break;
case imagick::ORIENTATION_LEFTBOTTOM:
$image->rotateimage("#000", -90); // rotate 90 degrees CCW
break;
}
// Now that it's auto-rotated, make sure the EXIF data is correct in case the EXIF gets saved with the image!
$image->setImageOrientation(imagick::ORIENTATION_TOPLEFT);
}
$image = 'C:\xampp\htdocs\uncompressed_images\20221016_120159.jpg';
// Create new Imagick Object
$imagick = new Imagick($image);
// Set the Compression to COMPRESSION_JPEG
$imagick->setImageCompression(imagick::COMPRESSION_JPEG);
// Set the Compression quality
// This is where that compression method imagick::COMPRESSION_JPEG is
// used in the program.
$imagick->setImageCompressionQuality(26);
$imagick->thumbnailImage(1024,768);
autoRotateImage($imagick);
// Show the output
$imagick->setformat('jpg');
$imagick->writeImage($image);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
?>
However the output image is always 768 x 1024 How can i have the resulting to be 1024 x 768?
How can i also write image to a specific directory in this line $imagick->writeImage($image); i.e output directory

Answer 1

You should use autoRotateImage to fix any orientation issue first (so now the image is in right orientation) , and then apply thumbnailImage for resizing
So change
$imagick->thumbnailImage(1024,768);
autoRotateImage($imagick);
to
autoRotateImage($imagick);
$imagick->thumbnailImage(1024,768);