Thursday, May 24, 2007

My first HDR photo



Click here for large size image


This was constructed as a high dynamic range (HDR) image to get good detail in highlights and shadows. Two images were captured with one stop exposure difference between them. In hindsight, i should have done three images with 1.5 stops of seperation to get that extra 3 stops of brightness range.

The merged 32-bit colour image was then trimmed back to 8 bits using a high-contrast sigmoid curve to give highlight and shadow details while avoiding a generally flat look.

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4 Comments:

Blogger 小李飞刀 said...

Nice shot, the glowing pockets of lights enveloped in a sea of darkness + gritty urban setting looks something straight out of Wong Kar Wai's film.

Only quibble is that the camera doesnt seem to be aligned parallel to the horizon. Those poles seem slightly tilted to the left.

8:09 am, May 27, 2007  
Blogger lcf said...

nice. left tilting: is it possibly due to the perspective issue?

12:04 pm, May 27, 2007  
Blogger Lao Chen said...

Thanks gentlemen,

Yeah, unfortunately it is tilted to the left. I did not calibrate my tripod properly.

3:52 pm, May 27, 2007  
Blogger Dr. Tan said...

Lines lines lines.

*nag*

6:26 pm, May 27, 2007  

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