| Title |
An EV Range in HDRI Acquisition as a Luminance Map Creation |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2010.24.10.005 |
| Keywords |
HDRI ; Lighting Analysis ; Luminance Map |
| Abstract |
The purpose of this study is to present the EV range in HDRI acquisition process to create luminance map. The proposed method in this study is to capture the scene at EV ±0 that is the longest exposure points and reference point in the scene. With this reference point, sets of 25 LDRI test case were taken manually at ±2 EV using the aperture-priority manual mode. The 25 HDRIs were created using Adobe Photoshop. The HDRIs were then imported Radiance lighting simulation program to be analyzed into falsecolor. The analysis results of the 25 HDRIs test case are 50[%] of the all tested case have a margin of error of 10[%]. In case of f/5.6, the luminance map generated with HDRI were similar to the spot luminance meter. As a result, the EV range to reduce error of luminance map generated with HDRI is EV +2∼±0∼-10. |