rotate_3d

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3D Rotation image along specific axes

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최종 버전 다운로드 (.zip)

- rotate_x_dx5.gif
- rotate_xz.gif
- 000001.jpg
.gitignore
demo.py
image_transformer.py
LICENSE.md
README.md
util.py

// repository documentation

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# Perspective Transformation along specific axes

## Animation

![](https://raw.githubusercontent.com/eborboihuc/rotate_3d/master/example/rotate_x_dx5.gif)
Rotate along X axis and translate 5 pixel along X axis

![](https://raw.githubusercontent.com/eborboihuc/rotate_3d/master/example/rotate_xz.gif)
Rotate along XZ axis

## Prerequisites

- Linux
- Python 2.7 with numpy
- OpenCV 2.4.9

## Usage

Change main function with ideal [arguments](#parameters)

```bash
python demo.py [path of the image] [degree to rotate] ([ideal width] [ideal height])
```
e.g.,
Example of rotating an image along yz-axis from 0 to 360 degree with a 5 pixel shift in +X direction
```python
- rotated_img = it.rotate_along_axis(phi = ang, dx = 5)
+ #rotated_img = it.rotate_along_axis(phi = ang, dx = 5)

- #rotated_img = it.rotate_along_axis(phi = ang, gamma = ang)
+ rotated_img = it.rotate_along_axis(phi = ang, gamma = ang)
```
Then
```bash
python demo.py images/000001.jpg 360
```

## Parameters:

```python
it = ImageTransformer(img_path, img_shape)
it.rotate_along_axis(theta=0, phi=0, gamma=0, dx=0, dy=0, dz=0):
```
- img_path  : the path of image that you want rotated
- shape     : the ideal shape of input image, None for original size.
- phi       : the rotation around the y axis
- gamma     : the rotation around the z axis (basically a 2D rotation)
- dx        : translation along the x axis
- dy        : translation along the y axis
- dz        : translation along the z axis (distance to the image)

## Acknowledgments

Code ported and modified from [jepson](http://jepsonsblog.blogspot.tw/2012/11/rotation-in-3d-using-opencvs.html) and [stackoverflow](http://stackoverflow.com/questions/17087446/how-to-calculate-perspective-transform-for-opencv-from-rotation-angles). Thanks for their excellent work!

## Author

Hou-Ning Hu / [@eborboihuc](https://eborboihuc.github.io/)

rotate_3d

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