FileUnitTestCase::testImageDimensions in core/modules/file/tests/file.test
Tests storing image height and width as file metadata.
file_validate_image_orientation in core/includes/
Check for EXIF orientation data and rotate file if needed.
file_validate_image_resolution in core/includes/
Verifies that image dimensions are within the specified maximum and minimum.
ImageFieldValidateTestCase::testOrientation in core/modules/image/tests/image.test
Test image rotation resulting from EXIF data. Requires a special test image, file rotate90cw.jpg.
ImageToolkitGdTestCase::testManipulations in core/modules/simpletest/tests/image.test
Since PHP can't visually check that our images have been manipulated properly, build a list of expected color values for each of the corners and the expected height and widths for the final images.
ImageToolkitUnitTest::testLoad in core/modules/simpletest/tests/image.test
Test the image_load() function.
image_style_create_derivative in core/modules/image/image.module
Creates a new image derivative based on an image style.
image_style_deliver in core/modules/image/image.module
Menu callback; Given a style and image path, generate a derivative.