Image Enhancement

Image Enhancement via HDR Compression


Our HDR compression method essentially boosts small local contrasts. Thus, it may be used to enhance ordinary images. Here's a comparison with several enhancement techniques (click to enlarge).

 

Original image:
Our method: Gamma correction (sky is washed out):
Histogram equalization (loss of contrast): Adaptive histogram equalization (halo artifacts):

 


Here another example of image enhancement (a typical problem with scenes containing both sunlit and shadowed regions):

 

Original image: Enhanced using HDR compression:

 


Another example (a fluoroscopic femur image):

 

Original image:
Enhanced using HDR compression: Gamma corrected: