HyDRa

Bartosz Paprzycki

xed [at] xeds.eu

HDR tone mapping

HDR - High Dynamic Range, LDR - Low Dynamic Range

HDR tone mapping project with:

- auto white balance
- parallel computing
- my logarithmic luminance scaling
- my saturation boost
- dcraw for RAW reading


Download proof-of-concept:

HyDRa

Papers and links:

[1] J. Duan, Tone-mapping high dynamic range images by novel histogram adjustment
[2] C-C. Weng, A Novel Automatic White Balance Method For Digital Still Cameras
[3] Dcraw homepage

Ordinary Gamma function:

function from 0.25 to 10
gamma function

My Gamma function:

function from 0 do 10
my gamma function

Saturation boost function:

from 1 to 2, red function is 1.2, fixed in application
my saturation boost function

Examples:

HDR from one RAW file
Hover mouse for LDR image

HDR HDR HDR HDR HDR HDR HDR HDR HDR HDR HDR HDR

Comparison with Photomatix:

HDR from 3 jpeg files
Hover mouse for Photomatix image

HDR
Bartosz Paprzycki, 2010 - 2011, pryka2 [at] gmail.com