ColorizeXL

Python implementation of the following paper by Anat Levin, Dani Lischinski, Yair Weiss, puublished in SIGGRAPH04.

We have adapted their technique to make it suitable for large images, by using overlapping patches with annotations.

Installation:

pip install colorizexl

Usage

Colorization of Black & White images

Previous to using the package, you have to setup the following:

• original black & white image
• annotation color image (please check details in the paper)

Recolorization of color images

Previous to using the package, you have to setup the following:

• original color image
• annotation image (please check details in the paper): white where the color stays the same, different colo where yo want to recolorize

Command line

Call the colorizexl.py from command line, to colorize or recolorize images.

python colorizexl.py --annotated=<path_to_annotated_image> --grayscale=<path_to_image_to_(re)colorize> --output=<path_to_(re)colorized_image> --recolorize=True/False

Python code

from colorizexl import ColorizeXL

colorizer = ColorizeXL(
        input_grayscale_name, input_annotation_name, recolorize=False
    )

output = colorizer.colorize(step_size=patch_size, overlap=overlap, n=neighbour)