Perspector

A control-point-based perspective rectification tool

Updated 2017-10-22

About

Perspector is a perspective rectification tool.

As opposed to most competitors out there (Gimp, Photoshop, Rawtherapee), this tool is not axis-based but rather control-point-based. This allows for much faster processing (in human time) while obtaining more accurate results.

It was originally created out of a need for ortho-aligning a batch of facade pictures as quickly as possible in the most convenient manner. (Understand “the less annoying”.)

The technique behind this tool is a tad more sophisticated than the usual axis-aligned version, without being revolutionary. I developed this program as I could not find such a thing anywhere. I believe it would be great to see it implemented in a tool like Gimp.

Preview

Facade 1 Rectified facade 1

See more in the gallery.

Usage

Select four control points on the picture. When processed, the picture will be transformed so that the four control points become the corners of an axis-aligned rectangle.

Installation

It should run out of the box on most Unix-based systems.

Fetch the source code and read the README file for further instructions.

License

Perspector is under MIT license.

Links