colour_hdri.sampling.grossberg2003 Module

Grossberg (2003) Histogram Based Image Sampling

Defines Grossberg (2003) histogram based image sampling objects:

• samples_Grossberg2003()

References

[1]	Grossberg, M. D., & Nayar, S. K. (2003). Determining the camera response from images: What is knowable? IEEE Transactions on Pattern Analysis and Machine Intelligence, 25(11), 1455–1467. doi:10.1109/TPAMI.2003.1240119

[2]	Banterle, F., & Benedetti, L. (2014). PICCANTE: An Open and Portable Library for HDR Imaging.

colour_hdri.sampling.grossberg2003.samples_Grossberg2003(image_stack, samples=1000, n=256)

Returns the samples for given image stack intensity histograms using Grossberg (2003) method.

Parameters:

• image_stack (array_like) – Stack of single channel or multi-channel floating point images.
• samples (int, optional) – Samples count.
• n (int, optional) – Histograms bins count.

Returns:

Intensity histograms samples.

Return type:

ndarray