Image

Orient

ALTO Image applies EXIF orientation automatically. orient() records the same step explicitly in the transform.

Example

Stored source: 768 x 432, orientation 6 Result: 432 x 768, orientation 1
JPEG with EXIF orientation Oriented pixels 
<?php

use Alto\Image\Image;

Image::open('source-orientation.jpg')
    ->orient()
    ->png()
    ->save('orient.png');

Options

No options.

Edge cases

  • Orientation 1 leaves pixels unchanged.
  • Orientations 5 through 8 swap width and height.
  • Missing orientation metadata is treated as orientation 1.
  • The explicit call is optional for ordinary image requests.
  • Metadata output remains controlled by the encoding policy.

Driver support

GD and Imagick support orient() exactly.