Professional photographers use shift lenses (expensive) or special large-format cameras to avoid the undesirable visual effects caused by converging lines in images, especially in architectural and landscape photos. Marcus Hebel's ShiftN is freeware that does much the same thing, analyzing images for parallel lines and correcting the perspective.
ShiftN's simple, efficient interface is divided between two panels, an image pane and an EXIF data view that also serves as a preview pane for image processing. Aside from a file menu bar, this program has five buttons: Open, Automatic Correction, Re-Optimize, Adjust Correction, and Save and Exit. We clicked … Read more