OpenEXR

OpenEXR is an image format designed by ILM that offers higher dynamic range and supports floating point pixels. To use OpenEXR with Python, this package provides useful bindings. In this review, we will analyze a brief sample of the OpenEXR module that duplicates exrnormalize from exrtools.

The sample code uses several functions and packages such as sys, array, OpenEXR, and Imath. The usage of these packages is intuitive and straightforward. To execute the code, the user needs to input a source file and an output file to execute the conversion process from one file format to another.

The code reads the three color channels as 32-bit floats and computes the size of the data window. After that, it normalizes the pixels so that the brightest sample is 1. Once done, the code converts the result to strings and writes the three color channels to the output file.

Overall, the Python bindings for OpenEXR offer an excellent solution to work with high dynamic range images. The package is well-documented with intuitive use of the conventions of the Python community. This package offers developers a simple and powerful way to incorporate OpenEXR image handling into various software solutions.