Beijing Eswin Computing Technology Co., Ltd.

Haining Eswin Computing Technology Co., Ltd.

Haining Eswin Ic Design Co., Ltd.

Duoduo Zhang

Huawen Ding

Bo Zhao

Benchuan Hu

Hongyang Ge

The present disclosure provides an image compression apparatus, an image compression method. The apparatus comprises: an image division module configured to divide a target image into one or more macro blocks; a macro block partitioning module configured to partition each of the macro blocks; a component determination module configured to determine, for each partition, a first component and a second component in each color channel; a color index determination module configured to determine, for each pixel, a color index of the pixel in a corresponding partition according to the first component and the second component; and a compressed code stream obtaining module configured to obtain a preset image compression ratio, and compress the macro block according to the number of partitions of the macro block, the first component and the second component and color indexes of all pixels to obtain a compressed code stream.

Image compression apparatus, image compression method, electronic device, and computer-readable storage medium

The present application discloses an overdrive device and method, and relates to the field of display control technology. The overdrive device comprises: a first determination module for determining a basic overdrive value of a target pixel unit according to a basic overdrive lookup table and a first gray scale value and a second gray scale value of the target pixel unit, wherein the basic overdrive lookup table is a set of data pre-stored in a storage module for determining the basic overdrive value, the first gray scale value is a display gray scale value of a current frame of the target pixel unit, and the second gray scale value is a display gray scale value of a previous frame of the target pixel unit; a second determination module for determining an overdrive gain value corresponding to a target refresh frequency, wherein the target refresh frequency is a current refresh frequency of a display apparatus where a target pixel unit is located; and a processing module for obtaining an actual overdrive value required for performing an overdrive operation on the target pixel unit according to the basic overdrive value, the overdrive gain value, the first gray scale value and the second gray scale value.

Overdrive device and method

Embodiments of the present disclosure provide an image compression method, an apparatus, and a computer-readable storage medium, relating to the field of image compression. The method comprises: acquiring a plurality of macroblocks of an image; determining the sub-region(s) of each one of the plurality of macroblocks and a partition color of each macroblock; determining a data compression format corresponding to each macroblock according to pixels in the sub-region(s) of each macroblock and the partition color of each macroblock; and compressing each macroblock based on the data compression format corresponding to each macroblock, and determining the compressed data corresponding to each macroblock. In the embodiments of the present disclosure, while ensuring the image compression efficiency, the image compression format is simplified, the image compression accuracy is guaranteed, and the over drive distortion caused by image compression is reduced.

Growing community of inventors

Zhejiang, China

Duoduo Zhang