IMAGE DITHERING MODULE
    5.
    发明申请
    IMAGE DITHERING MODULE 有权
    图像抖动模块

    公开(公告)号:US20130141455A1

    公开(公告)日:2013-06-06

    申请号:US13448402

    申请日:2012-04-17

    申请人: Jian-Chao Wang

    发明人: Jian-Chao Wang

    IPC分类号: G09G5/02

    摘要: An image dithering module is provided. The image dithering module includes a plurality of data processing channels. The data processing channels respectively process image data of each pixel or sub-pixel in an image frame. Each of the data processing channels includes a bit processing unit and a bit truncator unit. The bit processing unit mixes first pixel data with random data to generate second pixel data. The bit truncator unit truncates partial bits of the second pixel data to generate third pixel data.

    摘要翻译: 提供图像抖动模块。 图像抖动模块包括多个数据处理通道。 数据处理通道分别处理图像帧中的每个像素或子像素的图像数据。 每个数据处理通道包括位处理单元和位截断器单元。 位处理单元将第一像素数据与随机数据混合以产生第二像素数据。 位截断器单元截断第二像素数据的部分位以产生第三像素数据。

    RGB-Out Dither Interface
    6.
    发明申请
    RGB-Out Dither Interface 有权
    RGB输出抖动接口

    公开(公告)号:US20130038791A1

    公开(公告)日:2013-02-14

    申请号:US13207805

    申请日:2011-08-11

    IPC分类号: G09G5/10 H04N5/04

    摘要: A display controller may include an RGB Interface module and a display port module, which may both use a target-master interface, in which the data receiving module pops pixels from the data sourcing module, and generates the HSync, VSync, and VBI timing signals. A dither module may be instantiated between the RGB interface module and display port module to perform dithering. The dither module may use a source-master interface, in which data signals and data valid signals are issued by the data sourcing module. In order to avoid having to use a large storage capacity FIFO with the dither module, a control unit may issue interface signals to the RGB Interface module and display port module, and clock-gate the dither module, to allow the data signals and data valid signals to properly interface with the RBG interface module and display port module, and provide data flow from the RGB interface module to the dither module to the display port module.

    摘要翻译: 显示控制器可以包括RGB接口模块和显示器端口模块,其可以使用目标主机接口,其中数据接收模块从数据采集模块中弹出像素,并且生成HSync,VSync和VBI定时信号 。 可以在RGB接口模块和显示端口模块之间实例化抖动模块以执行抖动。 抖动模块可以使用源 - 主接口,其中数据信号和数据有效信号由数据采集模块发出。 为了避免使用具有抖动模块的大容量FIFO,控制单元可以向RGB接口模块和显示端口模块发出接口信号,并对抖动模块进行时钟门控,以允许数据信号和数据有效 信号与RBG接口模块和显示端口模块正确接口,并提供从RGB接口模块到抖动模块到显示端口模块的数据流。

    Method and apparatus for dithering a pixel value in image
    7.
    发明授权
    Method and apparatus for dithering a pixel value in image 有权
    用于使图像中的像素值抖动的方法和装置

    公开(公告)号:US08325387B2

    公开(公告)日:2012-12-04

    申请号:US12333447

    申请日:2008-12-12

    IPC分类号: H04N1/405

    摘要: Disclosed is a method and an apparatus for dithering a pixel value in a image. The method includes checking a difference in chrominance signals between a particular pixel and a pixel adjacent to the particular pixel, in an input image, designating the particular pixel as being in a flat or a non-flat area in consideration of the difference in chrominance signals and dithering the particular pixel when the pixel is designated as being in the non-flat area.

    摘要翻译: 公开了一种用于使图像中的像素值抖动的方法和装置。 该方法包括在输入图像中检查特定像素与特定像素相邻的像素之间的色度信号的差异,将特定像素指定为处于平坦或非平坦区域中的色度信号的差异 并且当像素被指定为处于非平坦区域时,将特定像素抖动。

    Bit-depth extension of digital displays via the use of models of the impulse response of the visual system

    公开(公告)号:US20060038826A1

    公开(公告)日:2006-02-23

    申请号:US10921003

    申请日:2004-08-17

    申请人: Scott Daly

    发明人: Scott Daly

    IPC分类号: G09G5/02

    摘要: A dithering pattern that is generated based on a spatial operation is used for a Bit-Depth Extension (BDE) technique for preventing contouring artifacts in an image displayed by a display having a bit-depth that-is less than the bit-depth of the image. The dithering pattern can be based on achromatic visual model or a spatio-chromatic visual model. The dither pattern is formed by shaping a pseudo-random noise signal by an equivalent noise visual model that is based on an array of pixels. Alternatively, the array of pixels is based on an image, or a determinate array of pixels.