<commit_before>proj-tran
=========

Simple projective transformation tool using Gaussian elimination to obtain a homography matrix.
This tool partially uses OpenCV to load and show images,
but does not use the function (`cv::findHomography()`) of OpenCV which calculates homography matrices.
To solve a system of linear equations the Gaussian elimination have been used.

![screenshot](http://isw3.naist.jp/~kazuki-mi/img/proj-tran.png)

## Usage

    $ proj input_image [output_width] [output_height]

The `Input image` window will appears, then click four corners clockwise from the upper left to the lower left.

## Requirement
OpenCV 2.4

## Installation<commit_msg>additional info<commit_after>proj-tran
=========

Simple projective transformation tool using Gaussian elimination to obtain a homography matrix.
This tool partially uses OpenCV to load and show images,
but does not use the function (`cv::findHomography()`) of OpenCV which calculates homography matrices.
To solve a system of linear equations the Gaussian elimination have been used.

![screenshot](http://isw3.naist.jp/~kazuki-mi/img/proj-tran.png)

## Usage

    $ proj input_image [output_width] [output_height]

The `Input image` window appears. Next, click four corners clockwise from the upper left to the lower left. The homography matrix of the transformation is calculated automatically and the transformed image appears in the `Output image`. The windows close when you press any key.

## Requirement
OpenCV 2.4

## Installation
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