摘要 |
AN APPARATUS FOR REDUCING SPARKLE ARTIFACTS (10) IN A LIQUID CRYSTAL IMAGER INCLUDES A DEVICE (16) FOR GAMMA CORRECTING A VIDEO DRIVE SIGNAL FOR PROVIDING A GAMMA CORRECTED VIDEO DRIVE SIGNAL AND A SLEW RATE LIMITER (22) FOR SLEW RATE LIMITING THE GAMMA CORRECTED VIDEO DRIVE SIGNAL. THE APPARATUS ALSO INCLUDES A DEINTERLACER (12) AND A COLOR SPACE CONVERTER (14) FOR COLOR SPACE CONVERTING A DEINTERLACED VIDEO DRIVE SIGNAL, WHEREIN THE DRIVE FOR GAMMA CORRECTING CORRECTS THE COLOR SPACE CONVERTED VIDEO DRIVE SIGNAL. ONE OR MORE OF THE VIDEO DRIVE SIGNALS, FOR EXAMPLE R, G AND B, IS SLEW RATE LIMITER AFTER GAMMA CORRECTION TO LIMIT THE DIFFERENCE IN BRIGHTNESS LEVELS BETWEEN ADJACENT PIXELS.
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