tatsy / lightfield

Light field viewer and virtual light field camera

LightField

Light field image viewer with Qt5.

Installation

You need Qt5 to build this project. With Qt5, you can easily build the project using CMake.

$ git clone https://github.com/tatsy/LightField.git
$ mkdir build && cd build
$ cmake ..
$ cmake --build .

Usage

Datasets

This viewer accepts light field images from Stanford Light Field Archive. Please download the rectified datasets at this archive.

Also, I prepared a download script in data directory. Please run download.py on data directory and choose the light field file that you want.

Load

Run the viewer, push the Load button, and choose the unzipped folder rectified (you can change the folder name, but please make sure that the chosen directory contains all the downloaded images).

Interface

• Focus and aperture size: with the sliders in the right, you can change the focus and aperture size of the camera.

• View point: by clicking and dragging on the view, you can change the view point.

Screen shot

License

• MIT License, Tatsuya Yatagawa (tatsy)

lightfield's Issues

Error about QOpenGLShader

After build the project, it runs with error:
QOpenGLShader::compile(Vertex): ERROR: 0:1: '' : version '150' is not supported
ERROR: 0:6: 'smooth' : syntax error: syntax error
I think maybe its about the OpenGL version

Lightfields not showing up

Hi Tatsuya,

long time has passed but i finally found the time to test your code and for some reason i just get a black window. no errors anywhere. Can you double check if there is anything wrong?
RAM is filling up while assembling the single images and the image size in the viewer also changes to the correct size, but it's just black. I have a feeling it's the openGL part of the code that has a bug.

tested on Centos 7 and Ubuntu

cheers
Oliver

What are the formulas you used in lightfield.frag?

Thank you for your neat codes.

I would like to modify your codes to be compatible with light field images. But I got irrational results. I guess the reason may be that the way how you get refocused images is not suit for my light field images. Because I think I stored the input data in the codes as the same way you stored the gantry images. Do you still remember the formulas you used in lightfield.frag? A brief reference would be good enough.