Advanced Image Processing: Project 1
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Transcript of Advanced Image Processing: Project 1
![Page 1: Advanced Image Processing: Project 1](https://reader034.fdocuments.net/reader034/viewer/2022052506/557ccfc4d8b42aa2298b491c/html5/thumbnails/1.jpg)
AIP: Project 1張至, 莊傑雄, 陳駿瑜, 羅安鈞
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HDR Radiance Map
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lambda:0.2
lambda:3.0
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Sample Count Comparison
100 1000
using tonemap()
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Compare with makehdr()
makehdr() our implementation
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Panorama Image
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Graphical User Interface
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Projection Correction
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Projection Correction
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Projection Correction
using DigiKam
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Projection Methods
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Cylindrical Projection❖ s = f = 焦距
❖ 單位為「畫素 (pixel)」
❖ f = ~1750 pixels
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Cylindrical (re)Projection
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Blending
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No Projection
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Cylindrical Reprojection
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Ring Light
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Ring Light
On Off
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Dolly Zoom Effect
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計算相機距離以及屏幕距離
❖ 目標:主體大小相同 廣角度不同❖ 成像公式:
❖ (物距) -1 + (像距) -1 == (焦距)-1
❖ 用小光圈來增加景深
❖ 放大率:
❖ (像距) / (物距) == 常數❖ (廣角程度) 反比 (像距)
❖ 焦距: 33 cm 光圈:f/165 (半徑1mm) ❖ 像距 / 物距: (39.5/200) == (49.4 / 250) == 0.198
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200 cm39.5 mm
250 cm49.4 mm
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Debluring
1. gray level
2.lucy
deconv
3.L2
deconv
3.combine
RGB
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Exposure Fusion on Android
❖ Alternative to Radiance Map HDR approach
❖ 評價 pixel 合成 HDR 影像: contrast exposure saturation
❖ Porting from Matlab -> C, Java/JNI, Android SDK, libjpeg
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Exposure Fusion on Android
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Exposure Fusion on Android
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Exposure Fusion on Android
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Pixel Weighting: Saturation
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Pixel Weighting: Contrast
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P. W.: Well-Exposureness
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Pixel Weighting
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Exposure Fusion on Android
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Multi-resolution Fusion
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Fusion with Flash Fired
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Fusion with Flash Fired
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Happy Hacking ;)