Perspective and Equirectangular

Introduction

Perspective and Equirectangular is a python code to help you transfer image between equirectangular and perspective. Four transfer is in the list. This code is modify by fuenwang/Equirec2Perspec

1. equirectangular to perspective.
2. perspective to equirectangular.
3. equirectangular to cube.
4. cube to equirectangular.

Equirectangular to Perspective

Given an input of 360 degree panorama

Setting the (FOV, theta, phi, height, width) in the code equir2pers.py

equ = E2P.Equirectangular(input_img)    # Load equirectangular image
img = equ.GetPerspective(120, 0, 0, 1280, 1280)  # Specify parameters(FOV, theta, phi, height, width)
output1 = output_dir +  '/perspective_1.png'
cv2.imwrite(output1, img)

Run: python equir2pers.py.

Perspective to Equirectangular

Given multiple perspective images and infromation(FOV, theta, phi, height, width).
If the equirectangle image is overlapping, the pixel calculate the average in multiple image.

Setting the image information (FOV, theta, phi) in the code pers2equir.py.

input1 = input_dir + '/perspective_1.png'
input2 = input_dir + '/perspective_2.png'

equ = m_P2E.Perspective([input1,input2],
                        [[120, 0, 0],[120, 0, 90]])   #[FOV,theta,phi]
img = equ.GetEquirec(height,width)

Run: python pers2equir.py.

Panorama to Cube

Put image in ./panorama.

Run: python panorama2cube.py.

Cube to Panorama

Put image in ./in_path.
If you do not want to change code, remeber to set the image name (front,right,black,left,top,bottom).png.

Run: python panorama2cube.py --mode cube --input ./in_path --output ./out_path.