RECURSIVE HISTOGRAM EQUALIZING APPARATUS AND METHOD FOR IMAGE SEQUENCE

摘要

The present invention discloses a recursive histogram equalization apparatus and method for an image sequence. The histogram equalizer comprises a histogram equalizer, an image analyzer, and an equalization controller. The histogram equalizer equalizes the histogram equalized by the histogram equalized by the histogram updated from previous frames, and the image analyzer equalizes. Local activity for each pixel of the current frame is calculated, and a histogram of the current frame is generated according to the calculated result, and the equalization control unit outputs a new histogram of the histogram of the current frame and the histogram of the previous frame to the histogram equalizer. It features.