IMAGE COMPRESSION
    1.
    发明申请
    IMAGE COMPRESSION 有权
    图像压缩

    公开(公告)号:US20100128286A1

    公开(公告)日:2010-05-27

    申请号:US12598033

    申请日:2007-04-30

    IPC分类号: G06K15/02

    CPC分类号: H04N1/41

    摘要: A method for compressing a digital image to be printed, the image consisting of pixels. It is determined, for blocks of pixels, whether a block contains a graphical structure that is to be maintained without loss because it is of a type that can be accurately perceived by a human observer. The block is encoded losslessly into a less voluminous format, if such a graphical structure has been found. Otherwise, the block is compressed lossily, if no such graphical structure has been found.

    摘要翻译: 一种用于压缩要打印的数字图像的方法,由像素组成的图像。 对于像素块,确定块是否包含将被维持而没有损失的图形结构,因为它是可被人类观察者精确地感知的类型。 如果已经发现这样的图形结构,则该块被无损编码成较少的格式。 否则,如果没有找到这样的图形结构,则块被有损压缩。

    FACE AND SKIN SENSITIVE IMAGE ENHANCEMENT
    5.
    发明申请
    FACE AND SKIN SENSITIVE IMAGE ENHANCEMENT 有权
    面部和皮肤敏感的图像增强

    公开(公告)号:US20080298704A1

    公开(公告)日:2008-12-04

    申请号:US11754711

    申请日:2007-05-29

    IPC分类号: G06K9/40 G06K9/46

    摘要: Systems and methods of face and skin sensitive image enhancement are disclosed. In one aspect, a face map that includes for each pixel of an input image a respective face probability value indicating a degree to which the pixel corresponds to a human face is calculated. A skin map that includes for each pixel of the input image a respective skin probability value indicating a degree to which the pixel corresponds to human skin is ascertained. The input image is enhanced with an enhancement level that varies pixel-by-pixel in accordance with the respective face probability values and the respective skin probability values. In another aspect, a facial content measurement value indicating a degree to which an input image contains human face content is ascertained. A tone-correction process is tuned in accordance with the facial content measurement value. The input image is enhanced in accordance with the tuned tone-correction process.

    摘要翻译: 公开了面部和皮肤敏感图像增强的系统和方法。 在一个方面中,对于输入图像的每个像素包括指示像素对应于人脸的程度的各自的面部概率值的面部图被计算。 确定对于输入图像的每个像素包括指示像素对应于人体皮肤的程度的各个皮肤概率值的皮肤图。 增强输入图像,其中增强级别根据各自的面部概率值和各个皮肤概率值逐像素地变化。 在另一方面,确定表示输入图像包含人脸内容的程度的面部内容测量值。 根据面部内容测量值调整色调校正过程。 根据调谐色调校正过程增强输入图像。

    Face and skin sensitive image enhancement
    6.
    发明授权
    Face and skin sensitive image enhancement 有权
    面部和皮肤敏感的图像增强

    公开(公告)号:US08031961B2

    公开(公告)日:2011-10-04

    申请号:US11754711

    申请日:2007-05-29

    IPC分类号: G06K9/40 G06K9/46

    摘要: Systems and methods of face and skin sensitive image enhancement are disclosed. In one aspect, a face map that includes for each pixel of an input image a respective face probability value indicating a degree to which the pixel corresponds to a human face is calculated. A skin map that includes for each pixel of the input image a respective skin probability value indicating a degree to which the pixel corresponds to human skin is ascertained. The input image is enhanced with an enhancement level that varies pixel-by-pixel in accordance with the respective face probability values and the respective skin probability values. In another aspect, a facial content measurement value indicating a degree to which an input image contains human face content is ascertained. A tone-correction process is tuned in accordance with the facial content measurement value. The input image is enhanced in accordance with the tuned tone-correction process.

    摘要翻译: 公开了面部和皮肤敏感图像增强的系统和方法。 在一个方面中,对于输入图像的每个像素包括指示像素对应于人脸的程度的各自的面部概率值的面部图被计算。 确定对于输入图像的每个像素包括指示像素对应于人体皮肤的程度的各个皮肤概率值的皮肤图。 增强输入图像,其中增强级别根据各自的面部概率值和各个皮肤概率值逐像素地变化。 在另一方面,确定表示输入图像包含人脸内容的程度的面部内容测量值。 根据面部内容测量值调整色调校正过程。 根据调谐色调校正过程增强输入图像。

    Encoding image data using mask lookup table and decoding such encoded image data
    7.
    发明授权
    Encoding image data using mask lookup table and decoding such encoded image data 有权
    使用掩码查找表对图像数据进行编码,并解码这样的编码图像数据

    公开(公告)号:US07551773B2

    公开(公告)日:2009-06-23

    申请号:US10912034

    申请日:2004-08-05

    IPC分类号: G06K9/00

    摘要: In one aspect, an image is quantized by assigning sub-ranges of pixel values in the image to respective quantization levels. The quantized image is encoded based at least in part on a mask lookup table assigning index values to respective masks, wherein each mask corresponds to a respective spatial distribution of the quantization levels. In another aspect, a code corresponding to an encoded image with pixel values quantized to respective quantization levels is received. The code is decoded based at least in part on a mask lookup table assigning index values to respective masks, wherein each mask corresponds to a respective spatial distribution of the quantization levels.

    摘要翻译: 在一个方面,通过将图像中的像素值的子范围分配到相应的量化级别来对图像进行量化。 至少部分地对量化图像进行编码,该掩码查找表将索引值分配给相应的掩码,其中每个掩码对应于量化级别的相应空间分布。 在另一方面,接收对应于被量化为相应量化级的像素值的编码图像的代码。 该代码至少部分地基于将各个掩码分配索引值的掩码查找表进行解码,其中每个掩码对应于量化级别的相应空间分布。

    Imaging systems, articles of manufacture, and imaging methods

    公开(公告)号:US20060290794A1

    公开(公告)日:2006-12-28

    申请号:US11166877

    申请日:2005-06-23

    IPC分类号: H04N9/64

    CPC分类号: H04N5/367 H04N1/4097

    摘要: Imaging systems, articles of manufacture, and imaging methods are described according to aspects of the disclosure. According to one embodiment, an imaging system includes processing circuitry configured to access image data of a plurality of pixels of an image, to provide a plurality of representations of the image data, to determine contrast difference between the representations of the image data for a respective one of the pixels, to identify the one of the pixels as being defective using the determined contrast difference, and to provide replacement image data for the one of the pixels identified as defective and which is different than the accessed image data for the one of the pixels identified as defective.

    Imaging systems, articles of manufacture, and imaging methods
    10.
    发明授权
    Imaging systems, articles of manufacture, and imaging methods 有权
    成像系统,制品和成像方法

    公开(公告)号:US07634151B2

    公开(公告)日:2009-12-15

    申请号:US11166877

    申请日:2005-06-23

    IPC分类号: G06K9/00 G06K9/40

    CPC分类号: H04N5/367 H04N1/4097

    摘要: Imaging systems, articles of manufacture, and imaging methods are described according to aspects of the disclosure. According to one embodiment, an imaging system includes processing circuitry configured to access image data of a plurality of pixels of an image, to provide a plurality of representations of the image data, to determine contrast difference between the representations of the image data for a respective one of the pixels, to identify the one of the pixels as being defective using the determined contrast difference, and to provide replacement image data for the one of the pixels identified as defective and which is different than the accessed image data for the one of the pixels identified as defective.

    摘要翻译: 根据本公开的方面描述成像系统,制品和成像方法。 根据一个实施例,成像系统包括处理电路,其被配置为访问图像的多个像素的图像数据,以提供图像数据的多个表示,以确定相应的图像数据的表示之间的对比度差异 使用所确定的对比度差来将像素中的一个识别为有缺陷的像素中的一个,并且为被识别为有缺陷的像素中的一个像素提供替代图像数据,并且不同于所访问的图像数据 被识别为有缺陷的像素。