6. With the crop rectangle still active, drag the image down until the incomplete part of the
lower guardrail is outside the crop rectangle.
7. Click the Commit button in the options bar ( ) to apply the current crop settings. Content-
Aware Crop fills in the empty areas at the top and sides of the image.
8. Save your changes, and close the document.
Correcting image distortion
The Lens Correction filter fixes common camera lens flaws, such as barrel and pincushion
distortion, chromatic aberration, and vignetting. Barrel distortion is a lens defect that causes
straight lines to bow out toward the edges of the image. Pincushion distortion is the opposite
effect, causing straight lines to bend inward. Chromatic aberration appears as a color fringe
along the edges of image objects. Vignetting occurs when the edges of an image, especially the