Title :
One scan shadow compensation and visual enhancement of color images
Author :
Albu, Felix ; Vertan, Constantin ; Florea, Corneliu ; Drimbarean, Alexandru
Author_Institution :
Tessera Romania SRL, Romania
Abstract :
The paper presents a new technique of efficient dynamic range compression and shadow compensation for still color images. The proposed method enhances low light areas while preserving the colors and details, without generating visual artifacts. The approach is based on recursive filtering and contrast stretching techniques, driven by statistical measures of the image and implemented under a logarithmic image processing model. The implementation can be used for any image represented in the RGB or YCbCr color spaces.
Keywords :
data compression; image coding; image colour analysis; image enhancement; image representation; recursive filters; statistical analysis; RGB color space; YCbCr color space; contrast stretching technique; dynamic range compression; image representation; logarithmic image processing model; recursive filtering technique; scan shadow compensation; statistical measures; still color images; visual enhancement; Color; Digital cameras; Dynamic range; Filtering; Filters; Heuristic algorithms; Histograms; Humans; Image coding; Image processing; color image processing; dynamic range compression; logarithmic model; recursive filtering; shadow compensation;
Conference_Titel :
Image Processing (ICIP), 2009 16th IEEE International Conference on
Conference_Location :
Cairo
Print_ISBN :
978-1-4244-5653-6
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2009.5414437
