Method and apparatus to encode and decode halftone image
    1.
    发明授权
    Method and apparatus to encode and decode halftone image 有权
    半色调图像编码和解码的方法和装置

    公开(公告)号:US08233731B2

    公开(公告)日:2012-07-31

    申请号:US12170875

    申请日:2008-07-10

    IPC分类号: H06K9/46

    CPC分类号: H04N1/4105

    摘要: A method to encode and decode a halftone image such that the halftone image is efficiently compressed and decoded by using pattern characteristics of the halftone image includes determining different template shapes according to characteristics of the halftone image, compressing the halftone image based on determined template shape information, compressing the template shape information, and generating the compressed halftone image and the compressed template shape information as a bitstream.

    摘要翻译: 一种对半色调图像进行编码和解码的方法,使得通过使用半色调图像的图案特征有效地压缩和解码半色调图像,包括根据半色调图像的特性来确定不同的模板形状,基于确定的模板形状信息来压缩半色调图像 压缩模板形状信息,以及生成压缩半色调图像和压缩模板形状信息作为比特流。

    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE
    2.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE 审中-公开
    用于编码和解码图像的方法和装置

    公开(公告)号:US20090279796A1

    公开(公告)日:2009-11-12

    申请号:US12247545

    申请日:2008-10-08

    IPC分类号: G06K9/46 G06K9/36

    摘要: Provided are a method and apparatus for encoding and decoding an image. The method of encoding an image includes generating half-tone data by applying patterns specified by each color channel to input data, rearranging the generated half-tone data according to the characteristics of the applied patterns, and predicting the rearranged half-tone data and encoding the predicted half-tone data. Therefore, encoding and decoding can be performed more efficiently and a compression rate can be improved.

    摘要翻译: 提供了一种用于对图像进行编码和解码的方法和装置。 编码图像的方法包括通过将由每个颜色通道指定的图案应用于输入数据来产生半色调数据,根据所应用的图案的特性来重新排列生成的半色调数据,并且预测重新排列的半色调数据和编码 预测的半色调数据。 因此,可以更有效地执行编码和解码,并且可以提高压缩率。

    IMAGE PROCESSING METHOD AND IMAGE PROCESSING APPARATUS USING LEAST SIGNIFICANT BITS
    7.
    发明申请
    IMAGE PROCESSING METHOD AND IMAGE PROCESSING APPARATUS USING LEAST SIGNIFICANT BITS 有权
    图像处理方法和使用最小重要位置的图像处理设备

    公开(公告)号:US20090285497A1

    公开(公告)日:2009-11-19

    申请号:US12425478

    申请日:2009-04-17

    IPC分类号: G06K9/36

    CPC分类号: G06T9/005 H04N19/593

    摘要: Provided are an image processing method and image processing apparatus using least significant bits (LSBs). The image processing method includes generating first binary codes by converting pixel values of an input image into a binary code format; converting the first binary codes into gray codes and determining a predetermined number of sequential LSBs from among the gray codes; and generating second binary codes by converting the determined LSBs of the gray codes into the binary code format.

    摘要翻译: 提供了一种使用最低有效位(LSB)的图像处理方法和图像处理装置。 图像处理方法包括:通过将输入图像的像素值转换为二进制码格式来生成第一二进制码; 将所述第一二进制码转换为灰色码,并从所述灰色码中确定预定数量的连续LSB; 以及通过将所确定的灰度代码的LSB转换为二进制代码格式来生成第二二进制代码。

    Method and apparatus for converting bit-plane image, and method and apparatus for inverse-converting bit-plane image
    8.
    发明授权
    Method and apparatus for converting bit-plane image, and method and apparatus for inverse-converting bit-plane image 失效
    用于转换位平面图像的方法和装置,以及用于逆位转换位平面图像的方法和装置

    公开(公告)号:US08200030B2

    公开(公告)日:2012-06-12

    申请号:US12420409

    申请日:2009-04-08

    IPC分类号: G06K9/36

    CPC分类号: H04N19/40 H04N19/61 H04N19/63

    摘要: Provided are methods and apparatuses for converting a lower bit-plane image, and methods and apparatuses for inverse-converting the lower bit-plane image, which increase the correlation of the lower bit-plane image. According to the method of converting a lower bit-plane image, pixels of the lower bit-plane image are sequentially added or subtracted so as to generate a converted lower bit-plane image. Accordingly, the lower bit-plane image has higher regularity, and thus the efficiency of image processing using the lower bit-plane image is improved.

    摘要翻译: 提供了用于转换较低位平面图像的方法和装置,以及用于逆变换低位平面图像的方法和装置,其增加了较低位平面图像的相关性。 根据转换较低位平面图像的方法,顺序地添加或减去较低位平面图像的像素,以产生转换的较低位平面图像。 因此,较低的位平面图像具有较高的规则性,因此提高了使用较低位平面图像的图像处理的效率。

    METHOD AND APPARATUS TO ENCODE AND DECODE HALFTONE IMAGE
    9.
    发明申请
    METHOD AND APPARATUS TO ENCODE AND DECODE HALFTONE IMAGE 有权
    编码和解码黑板图像的方法和装置

    公开(公告)号:US20090169123A1

    公开(公告)日:2009-07-02

    申请号:US12170875

    申请日:2008-07-10

    IPC分类号: G06K9/80

    CPC分类号: H04N1/4105

    摘要: A method to encode and decode a halftone image such that the halftone image is efficiently compressed and decoded by using pattern characteristics of the halftone image includes determining different template shapes according to characteristics of the halftone image, compressing the halftone image based on determined template shape information, compressing the template shape information, and generating the compressed halftone image and the compressed template shape information as a bitstream.

    摘要翻译: 一种对半色调图像进行编码和解码的方法,使得通过使用半色调图像的图案特征有效地压缩和解码半色调图像,包括根据半色调图像的特性来确定不同的模板形状,基于确定的模板形状信息来压缩半色调图像 压缩模板形状信息,以及生成压缩半色调图像和压缩模板形状信息作为比特流。