Use the Adaptive Wide Angle filter

Choose Filter > Adaptive Wide Angle.

Choose a correction type:

Corrects extreme curvature caused by a fisheye lens.

Corrects converging lines caused by angle of view and camera tilt.

Corrects a Photomerge panorama.

Corrects 360-degree panoramas. The panoramas must have a 2:1 aspect ratio.

Detects the appropriate correction automatically.

Specify additional settings for filter. If the image has lens data, these values are automatically detected, and some options are not displayed.

Specify a value to scale the image. Use this value to minimize the blank areas that are introduced after applying the filter.

Specify the focal length of the lens. This value is automatically populated
if the lens information is detected in the photograph.

Specify a value to determine how the final image is cropped. Use this value
in combination with Scale to compensate for any blank areas that are introduced while applying the filter.

Enable this option to use the values as defined in the lens profile. This option is disabled if no lens information is found.

Define the constraints to indicate straight lines in the picture.

Do one of the following:

• Choose the Constraint tool, and drag a line across a key object to straighten.
• Choose the Polygon Constraint tool, and draw a polygon along the object to straighten.

The filter detects the curvature and draws a line that follows the contour of the object.