Transform & Upright

The Transform panel provides geometry correction tools for fixing perspective distortion, lens tilt, and architectural alignment.

Upright Modes

Fovea can automatically detect and correct perspective using its built-in line detection:

Mode	Description
Off	No correction applied
Auto	Balanced automatic correction for both horizontal and vertical lines
Level	Corrects horizontal tilt only (horizon leveling)
Vertical	Corrects vertical convergence (leaning buildings)
Full	Applies both vertical and horizontal correction aggressively
Guided	Draw guide lines manually on the image to indicate which lines should be straight

Click any mode button to trigger the solver. A brief analysis runs on the image, detecting structural lines and computing the optimal correction.

Manual Controls

Fine-tune beyond the automatic solver:

Slider	Range	Purpose
Vertical	±100	Tilt the image forward or backward
Horizontal	±100	Perspective shift left or right
Rotate	±45°	Free rotation for precise horizon leveling
Scale	50–200%	Zoom in or out to reframe after corrections
X Offset	±100	Pan the image horizontally
Y Offset	±100	Pan the image vertically

Constrain Crop

Enable Constrain Crop to automatically hide the empty areas created by perspective correction. When off, empty space is shown as a transparency checkerboard.

Tips

Use Vertical mode first for architecture, then fine-tune with the manual sliders.
Guided mode is best when automatic detection doesn’t produce ideal results — you control which lines matter.
Click Reset to return all transform values to their defaults.