colour_hdri.generation.radiance Module

HDRI / Radiance Image Generation

Defines HDRI / radiance image generation objects:

See also

Colour - HDRI - Examples Jupyter Notebooks

References

[1]Banterle, F., Artusi, A., Debattista, K., & Chalmers, A. (2011). 2.1.1 Generating HDR Content by Combining Multiple Exposures. Advanced High Dynamic Range Imaging. A K Peters/CRC Press. ISBN:978-1568817194
colour_hdri.generation.radiance.image_stack_to_radiance_image(image_stack, weighting_function=<function weighting_function_Debevec1997>, weighting_average=False, camera_response_functions=None)[source]

Generates a HDRI / radiance image from given image stack.

Parameters:
  • image_stack (ImageStack) – Stack of single channel or multi-channel floating point images. The stack is assumed to be representing linear values except if camera_response_functions argument is provided.
  • weighting_function (callable, optional) – Weighting function \(w\).
  • weighting_average (bool, optional) – Enables weighting function \(w\) computation on channels average instead of on a per channel basis.
  • camera_response_functions (array_like, optional) – Camera response functions \(g(z)\) of the imaging system / camera if the stack is representing non linear values.
Returns:

Radiance image.
Return type:

ndarray