HDR2EXR
Description
HDR2EXR is a plug-in for RICOH THETA V to help visual special effects professionally easily grab lighting conditions on-set. Just by pressing the shutter button once, the HDR2EXR plug-in will take 11 bracketed pictures and merge them to one HDR file. The main use is intended for on-set VFX HDR capture.
Details
HDR2EXR measures on-set lighting conditions and bases bracketing on that specific lighting situation. It first takes 1 auto exposed picture to determine basic exposure settings. Based on that information, it sets the lowest ISO and then starts taking pictures. For each bracket, it takes 3 pictures and averages them together to reduce noise. It takes 11 brackets with a 2.5 stop increase. This should be enough to capture almost every lighting situation. Unfortunately, very bright light (like the sun) is still visible with the lowest shutter times and ISO. This maybe can be fixed on the new RICOH THETA Z1 with higher aperture settings. This version of the HDR2EXR plug-in does not work with the Z1.
Finally, HDR2EXR automatically merges those 11 pictures into one EXR file ready to be used in NUKE, MAYA, etc. Creation of the EXR file is done by utilizing OpenCV HDR libraries.
Good to Know!
After running the plug-in, you may need to reboot your camera. The new files may not show up properly on Windows or Mac without rebooting. Credits The picture taking part is largely based on the work of Ichi Hirota’s dual-fisheye plug-in https://github.com/theta360developers/original-dual-fisheye-plugin
The integration of OpenCV is a combination of https://community.theta360.guide/t/ricoh-blog-post-running-opencv-in-your-ricoh-theta/4084 and https://www.learn2crack.com/2016/03/setup-opencv-sdk-android-studio.html and a lot of trail and error! The HDR part is based on https://www.learnopencv.com/high-dynamic-range-hdr-imaging-using-opencv-cpp-python/
Credits
The picture taking part is largely based on the work of Ichi Hirota’s dual-fisheye plug-in https://github.com/theta360developers/original-dual-fisheye-plugin
The integration of OpenCV is a combination of https://community.theta360.guide/t/ricoh-blog-post-running-opencv-in-your-ricoh-theta/4084 and https://www.learn2crack.com/2016/03/setup-opencv-sdk-android-studio.html and a lot of trial and error!
The HDR part is based on https://www.learnopencv.com/high-dynamic-range-hdr-imaging-using-opencv-cpp-python/