Transform

0:03 Transform · see the starting image
Transform adjusts perspective; use straight structures to judge the correction.

0:08 Change vertical perspective
The top and bottom change relative width. Watch the room’s vertical lines.

0:15 Change horizontal perspective
The left and right change relative scale. Empty edges may need a crop.

0:22 Refine the vertical correction
Keep enough framing room before committing to a final crop.

0:30 Bypass only this tool
Compare the same photograph at the same zoom. The settings are retained.

0:36 Restore the adjustment
Judge the change before combining it with other tools.

0:42 Reset and compare the starting state
Only this tool returns to its starting state. Other edits stay.

0:48 Explore the controls in the written tool reference
OmaRaw