Outline Whats HDR image Why LDR 2 HDR

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Outline What’s HDR image? Why LDR 2 HDR? How LDR 2 HDR? Implement Future

Outline What’s HDR image? Why LDR 2 HDR? How LDR 2 HDR? Implement Future work

LDR image -4 stops +2 stops -2 stops +4 stops HDR image Tone mapping

LDR image -4 stops +2 stops -2 stops +4 stops HDR image Tone mapping

Implement 使用者操作介面 System : win 10 Language : matlab 2017 a Library : HDRToolbox

Implement 使用者操作介面 System : win 10 Language : matlab 2017 a Library : HDRToolbox

l. GUI介面如下: 1) 使用者在editor裡輸入檔名 Implement 2) 按下Load LDR image會顯示出LDR 影像 3) 按下LDR 2 HDR會完成extend

l. GUI介面如下: 1) 使用者在editor裡輸入檔名 Implement 2) 按下Load LDR image會顯示出LDR 影像 3) 按下LDR 2 HDR會完成extend to HDR 4) 按下show in false color會將HDR影像以false color顯示 5) 按下Save HDR image會將HDR影像以. hdr格式儲存

Implement

Implement

Demo video

Demo video

HDR image reconstruction from a single exposure using deep CNNs [G Eilertsen et

HDR image reconstruction from a single exposure using deep CNNs [G Eilertsen et al. 2017] 當張的LDR影像藉由CNN重建高光飽和區並拓展至HDR影像 Future work Deep Reverse Tone Mapping [Y Endo et al. 2017] 單張的LDR影像藉由CNN產生出不同曝光度的影像，再藉由傳統 的方法合成HDR 上述兩篇是目前所提出的方法，有所進步但也有侷限，或許深 度學習是LDR 2 HDR下一個進步的關鍵

1. Reference Recovering High Dynamic Range Radiance Maps from Photographs [P Debevec et al.

1. Reference Recovering High Dynamic Range Radiance Maps from Photographs [P Debevec et al. 1997] 2. Photographic Tone Reproduction for Digital Images [E Reinhard et al. 2002] 3. Inverse Tone Mapping [F Banterle et al. 2006] 4. HDR image reconstruction from a single exposure using deep CNNs [G Eilertsen et al. 2017] 5. Deep Reverse Tone Mapping [Y Endo et al. 2017]