Willy Kuang Feb. 3, 2004 HDR images rendering in iCAM Simg726 Final Project Update.
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Transcript of Willy Kuang Feb. 3, 2004 HDR images rendering in iCAM Simg726 Final Project Update.
![Page 1: Willy Kuang Feb. 3, 2004 HDR images rendering in iCAM Simg726 Final Project Update.](https://reader031.fdocuments.us/reader031/viewer/2022013101/56649e905503460f94b95170/html5/thumbnails/1.jpg)
Willy Kuang
Feb. 3, 2004
HDR images rendering in iCAM
Simg726 Final Project Update
![Page 2: Willy Kuang Feb. 3, 2004 HDR images rendering in iCAM Simg726 Final Project Update.](https://reader031.fdocuments.us/reader031/viewer/2022013101/56649e905503460f94b95170/html5/thumbnails/2.jpg)
Introduction
GUI is designed to show High Dynamic Range (HDR) images rendering techniques in iCAM. There are six free parameters to be set for image rendering. The selection of parameters combination will determine the rendering performance in iCAM. This GUI program is designed to find out optimized parameters combination in the preliminary experiment period and then is used for the advanced psychophysical experiment. Pictorial images are used in this program.
![Page 3: Willy Kuang Feb. 3, 2004 HDR images rendering in iCAM Simg726 Final Project Update.](https://reader031.fdocuments.us/reader031/viewer/2022013101/56649e905503460f94b95170/html5/thumbnails/3.jpg)
Overview
What’s HDR images?Dynamic Range is the ratio between the Max. and the Min. tone values in a scene.
High Dynamic Range in the world:100 000 000:1 Natural scenes
>10 000:1 Human vision in a single view
100:1 CRT Display
![Page 4: Willy Kuang Feb. 3, 2004 HDR images rendering in iCAM Simg726 Final Project Update.](https://reader031.fdocuments.us/reader031/viewer/2022013101/56649e905503460f94b95170/html5/thumbnails/4.jpg)
HDR images
Encoding Formats1. Radiance's RGBE Format2. Pixar's Log Format 3. SGI's LogLuv Format
Capturing HDR images1. Multi-exposure techniques: combination of multiple images
of the same scene with different F-number aperture or exposure time
2. Multiple image detectors (Saito and Ikeda)3. CCD, sensor design…
![Page 5: Willy Kuang Feb. 3, 2004 HDR images rendering in iCAM Simg726 Final Project Update.](https://reader031.fdocuments.us/reader031/viewer/2022013101/56649e905503460f94b95170/html5/thumbnails/5.jpg)
Overview - iCAM
Figure 1 Flow chart of iCAM for rendering high dynamic range images
Parameters:
D – incomplete adaptation factor
– adaptation low-pass filter size
K – Normalization factor for FL
– blurring kernel factor
Perc – clipping factor
– Gamma correction factor
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![Page 6: Willy Kuang Feb. 3, 2004 HDR images rendering in iCAM Simg726 Final Project Update.](https://reader031.fdocuments.us/reader031/viewer/2022013101/56649e905503460f94b95170/html5/thumbnails/6.jpg)
Demo
![Page 7: Willy Kuang Feb. 3, 2004 HDR images rendering in iCAM Simg726 Final Project Update.](https://reader031.fdocuments.us/reader031/viewer/2022013101/56649e905503460f94b95170/html5/thumbnails/7.jpg)
Demo