2results about How to "Guaranteed Saturation" patented technology

The application discloses a video processing method, device and equipment and a computer readable storage medium, and applies to the field of video processing, and comprises the following steps: receiving a code stream output by an encoder; if a saturation enhancement enabling flag in the code stream is valid, determining whether a pixel belongs to a skin color protection area according to a preset condition in a linear light domain; if the pixel belongs to the skin color protection area, performing smoothing interpolation processing on a saturation scaling factor in metadata parameters by using a sliding window according to a relative position of a hue angle of the pixel in a skin color interval to obtain an effective enhancement coefficient; if the pixel does not belong to the skin color protection area, taking the saturation scaling factor as the effective enhancement coefficient; and obtaining an enhanced color component according to a color difference component of the pixel and the effective enhancement coefficient and a luminance value of the pixel. The application solves the problems of insufficient saturation, over-saturation of the skin color area, skin color distortion and other video quality problems of an HDR video after dynamic range conversion.

The utility model discloses a kind of energy-saving extrusion devices for high saturation color refill, it includes: three-roll grinder, hopper, briquetting and briquetting drive mechanism, first roller, second roller and third roller are sequentially and parallelly spaced in three-roll grinder from back to front, the gap above between first roller and second roller is provided with the discharge port in the bottom of hopper, briquetting is set in the discharge port liftable, briquetting drive mechanism includes jack, motor, carousel and driving rod, jack is set in briquetting top and extends to the discharge port above, by the lifting of briquetting in discharge port, avoid the blockage of color refill raw material in discharge port, ensure smooth discharging to carry out extrusion dispersion, and using the descending of briquetting to carry out the pressing of raw material in the gap above between first roller and second roller, avoid the problem that raw material floats on top and does not enter gap, ensure the efficiency of extrusion production, thereby reduce energy consumption.