Color correction for "Fast Bilateral Filtering" tone mapping

The results below compare the results of the original tone-mapping based on the bilateral filter [Durand and Dorsey, 2003] with the same algorithm that has been extended with our color correction formula based on the experimental data. Each row shows the results for different base contrast compression.

The middle columns shows a reference, not modified image. In case of HDR images, this is the best exposure correction (manually selected).

To observe

While the algorithm produces satisfactory results for default parameters (base=5), color correction is necessary for strong contrast compression (base=2).

Additional comments

Note that on some displays (especially LCD) color appearance may change depending on the position on the screen and viewing direction. For the best viewing, make sure that the screen is seen from the perpendicular angle. If you see a difference between reference images in the middle column (they are the same), try scrolling the page.

The color matching criterion is the image that appears the closest to the reference image. The critertion IS NOT the preferred or the most natural image.

Click on an image to see its full size version. To compare two or more images, open them in separate tabs in your browser, then altrenate between the tabs.

Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)
Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)
Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)
Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)
Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)
Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)
Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)
Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)
Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)
Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)
Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)
Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)
Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)
Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)
Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)
Low base contrast (base = 2)
Original algorithm
Reference
With color correction
Typical base contrast (base = 5)