Figure Generator

This is an awesome figure generator. It generates figures in pdf-, html- and pptx-format. The following image shows the output of one of our test files ("tests/pool.py"):

This tool might help not only to create final figures, but also to analyze images faster: We offer a bunch of error metrics that allows not only to compare images visually but also mathematically.

Why did we create a figure generator?

In rendering research, it is quite common to create figures of "comparison"-type. Meaning, that we start with a set of generated images, that needs to be compared. Often, one rendered scene is not enough, therefore, we need several comparison figures - preferably in a similar or same style as the other created figures.

We support grids (images that are grid-like arranged) and simple line-plotting. To get a further understanding what grids are, you might want to have a look at our tutorial (Tutorial.ipynb).

Dependencies

Mandatory:

• Python 3.6+ with opencv-python and simpleimageio

Optional:

• For the .pdf backend: pdflatex (in path) with at least: tikz, calc, standalone, fontenc, libertine, inputenc.
• For the .pptx backend: python-pptx
• To include pdf files as image data: PyPDF2, and pdf2image (which requires poppler).

Quickstart

You can install the figure generator and all mandatory dependencies with a simple:

python -m pip install figuregen

The fastest way to get a first figure is by using an existing template:

import simpleimageio as sio
import figuregen
from figuregen.util.templates import CropComparison
from figuregen.util.image import Cropbox

figure = CropComparison(
    reference_image=sio.read("images/pool/pool.exr"),
    method_images=[
        sio.read("images/pool/pool-60s-path.exr"),
        sio.read("images/pool/pool-60s-upsmcmc.exr"),
        sio.read("images/pool/pool-60s-radiance.exr"),
        sio.read("images/pool/pool-60s-full.exr"),
    ],
    crops=[
        Cropbox(top=100, left=200, height=96, width=128, scale=5),
        Cropbox(top=100, left=450, height=96, width=128, scale=5),
    ],
    scene_name="Pool",
    method_names=["Reference", "Path Tracer", "UPS+MCMC", "Radiance-based", "Ours"]
)

# here you can modify the figure layout and data
# ...

# Generate the figure with the pdflatex backend and default settings
figuregen.figure([figure.figure_row], width_cm=17.7, filename="pool_with_template.pdf")

The template simply creates a list of Grid objects that can be modified and extended arbitrarily before passing it to the figure() function.

Examples and inspiration for creating your own figure layouts can be found in our examples or the Jupyter tutorial.

Examples

Clicking on an image below leads to the test that created the corresponding figure.

Vertical stacks

Split Comparison

Crop Comparison

Plots

Grid with titles, labels, markers, and frames