Optical Tone: dynamic color composition

Color enhancement of reproduced color images has been a critical problem in TV systems. A flesh tone reappearance circuit is implemented to enhance the flesh tones as a standard reference color. The system consists of a phase detector to detect the ...

We propose an adaptive tone mapping method for displaying HDR images according to ambient light conditions. To compensate the loss of perceived luminance in brighter viewing conditions, we enhance the HDR image by an algorithm based on the Naka-Rushton ...

High dynamic range (HDR) imaging provides more physically accurate measurements of pixel intensities, but displaying them may require tone mapping as the dynamic range between image and display device can differ. Most tone-mapping operators (TMO) focus ...