unmap 0.1.0

Unmap data from pseudocolor images.

unmap

Unmap data from pseudocolor images, with knowledge of the colourmap (for now!).

Installation

You can install this package with pip:

pip install unmap

Documentation

Read the documentation

Example

We'll grab an image from the web and unmap it:

def get_image_from_web(uri):
    data = requests.get(uri).content
    img = Image.open(BytesIO(data)).convert('RGB')
    rgb_im = np.asarray(img)[..., :3] / 255.
    return rgb_im

# An image from Matteo Niccoli's blog:
# https://mycartablog.com/2014/08/24/what-your-brain-does-with-colours-when-you-are-not-looking-part-1/
img = get_image_from_web('https://i0.wp.com/mycartablog.com/wp-content/uploads/2014/03/spectrogram_jet.png')

import gio

data = gio.unmap(img, cmap='jet')
plt.imshow(data)

Testing

You can run the tests (requires pytest and pytest-cov) with

pytest

Building

This repo uses PEP 517-style packaging. Read more about this and about Python packaging in general.

Building the project requires build, so first:

pip install build

Then to build unmap locally:

python -m build

The builds both .tar.gz and .whl files, either of which you can install with pip.