Image processing apparatus and image processing method

    公开(公告)号:US20060256120A1

    公开(公告)日:2006-11-16

    申请号:US11487370

    申请日:2006-07-17

    CPC classification number: G06T1/60 G06T1/0007

    Abstract: To provide an image processing technique compatible with both a CCD and a CIS, which controls storage of image data read by each device in a memory and the read of the stored data for each rectangular area to obtain a high memory efficiency, an image processing apparatus includes a memory area control section which sets, for image data bitmapped on a first memory, a rectangular area divided in a main scanning direction and sub-scanning direction, an address generation section which generates address information to read out image data corresponding to the rectangular area in correspondence with the set rectangular area, a memory control section which reads out the image data corresponding to the rectangular area and DMA-transfers the image data to a second memory in accordance with the generated address information, and an image processing section which executes image processing for each rectangular area of the DMA-transferred data by using the second memory.

    Coding method, code converting method, code converting apparatus, and image forming apparatus
    12.
    发明授权
    Coding method, code converting method, code converting apparatus, and image forming apparatus 失效
    编码方法,代码转换方法,代码转换装置和图像形成装置

    公开(公告)号:US06577768B1

    公开(公告)日:2003-06-10

    申请号:US09395735

    申请日:1999-09-14

    CPC classification number: G06T9/005 G06T9/00 G06T9/004

    Abstract: This invention relates to a coding method, code converting method and apparatus, and image forming apparatus and, more particularly, to a coding method, code converting method and apparatus, and image forming apparatus capable of high-speed conversion data coded by different coding method. When data is converted between different coding methods, e.g., when data encoded by a run-length coding method is re-encoded by a coding method using typical prediction, the data is conventionally temporarily decoded into original data before encoding and then re-encoded. In this invention, data subjected to coding such as MH, MR, or MMR as run-length coding is decoded into run-length information as intermediate data, and typical prediction is performed in this state. This increases the speed of conversion from run-length coded data to coded data using typical prediction.

    Abstract translation: 编码方法,代码转换方法和装置以及图像形成装置技术领域本发明涉及编码方法,代码转换方法和装置以及图像形成装置,更具体地说,涉及一种编码方法,代码转换方法和装置以及能够通过不同编码方法编码的高速转换数据的图像形成装置 。 当在不同的编码方法之间转换数据时,例如当通过使用典型预测的编码方法对由游程长度编码方法编码的数据进行重新编码时,数据通常在编码之前临时解码为原始数据,然后被重新编码。 在本发明中,作为游程长度编码的经过诸如MH,MR或MMR的编码的数据被解码为游程长度信息作为中间数据,并且在该状态下执行典型的预测。 这通过典型的预测增加了从游程编码数据到编码数据的转换速度。

    Image processing method and apparatus
    13.
    发明授权
    Image processing method and apparatus 失效
    图像处理方法和装置

    公开(公告)号:US06233366B1

    公开(公告)日:2001-05-15

    申请号:US08927066

    申请日:1997-09-10

    CPC classification number: G06T3/4007

    Abstract: Disclosed are an image processing method and apparatus for converting the processed block of bi-level image data to a block having a size conforming to the magnification of zoom processing and deciding, based upon the pixel pattern of the bi-level image data, output values within the converted processed block. The output values are decided in such a manner that pixel density of the bi-level image data is preserved within the converted processed block.

    Abstract translation: 公开了一种图像处理方法和装置,用于将经处理的双电平图像数据块转换为具有与缩放处理放大率相符合的尺寸的块,并且基于双电平图像数据的像素图案来确定输出值 在转换的处理块内。 输出值以这样的方式决定,即在转换后的处理块中保留双电平图像数据的像素密度。

    Image record apparatus
    14.
    发明授权
    Image record apparatus 失效
    图像记录装置

    公开(公告)号:US5923441A

    公开(公告)日:1999-07-13

    申请号:US616215

    申请日:1996-03-15

    CPC classification number: H04N1/233 H04N1/2307

    Abstract: A printer which records an image on a cut paper sheet must normally assure a margin region at the trailing end side of a record paper sheet in terms of the mechanism of the printer. Conventionally, the margin has a considerably large size. However, this invention aims at reducing the margin size as much as possible and increasing the image record region as much as possible.When a printer of this invention is used in a facsimile apparatus, a problem experienced with a conventional printer, which has a narrow image record region on a record paper sheet, can be prevented. Conventionally, when an image is recorded on a record paper sheet having the same size as that of a received original, the received image is determined as an elongated original image and is divisionally recorded on two record paper sheets, or is recorded on a record paper sheet larger than the received original. This invention prevents this problem.

    Abstract translation: 在切纸上记录图像的打印机在打印机的机构方面必须通常确保在记录纸的后端侧的边缘区域。 通常情况下,边距大小相当大。 然而,本发明旨在尽可能地减小边缘大小,并尽可能地增加图像记录区域。 当本发明的打印机用于传真设备时,可以防止在记录纸上具有窄图像记录区域的常规打印机所遇到的问题。 通常,当将图像记录在具有与接收到的原稿相同尺寸的记录纸上时,接收到的图像被确定为细长的原始图像,并且被分割地记录在两个记录纸上,或被记录在记录纸上 表格大于收到的原件。 本发明可以防止这个问题。

    Image encoding and decoding apparatus
    15.
    发明授权
    Image encoding and decoding apparatus 失效
    图像编解码装置

    公开(公告)号:US5991450A

    公开(公告)日:1999-11-23

    申请号:US708628

    申请日:1996-09-05

    CPC classification number: H04N1/415

    Abstract: At the encoding side, a sum of code lengths of a block is calculated and stored in a memory for each of block lines (stripes); and at the decoding side, when decoding of one block is completed, a head address of a code in the next block is calculated utilizing a sum of an amount of codes utilized for the decoding operation and code lengths for each of the stripes. The rotation process of an image utilizing encoded data is performed in accordance with the head address. Further, at the encoding side, colors of pixels in a predetermined block is determined, and encoding operation is performed block by block for only those blocks including pixels of different colors. At the decoding side, an address of block data for sequentially constructing a rotated image is controlled to decode the pixels in the block, and finally the rotation process is performed on the pixels in the block in accordance with the color of the pixels.

    Abstract translation: 在编码侧,针对每个块线(条纹)计算块的码长度的总和并将其存储在存储器中。 并且在解码侧,当完成一个块的解码时,利用用于解码操作的代码量和每个条带的代码长度的和来计算下一个块中的代码的头地址。 使用编码数据的图像的旋转处理根据头地址进行。 此外,在编码侧,确定预定块中的像素的颜色,并且对于仅包括不同颜色的像素的块逐块地执行编码操作。 在解码侧,控制用于顺序构造旋转图像的块数据的地址,对块中的像素进行解码,最后根据像素的颜色对块中的像素执行旋转处理。

    Image forming apparatus
    16.
    发明授权
    Image forming apparatus 失效
    图像形成装置

    公开(公告)号:US5917610A

    公开(公告)日:1999-06-29

    申请号:US572114

    申请日:1995-12-14

    CPC classification number: H04N1/00885 G03G15/5004 H04N1/00896 H04N1/00912

    Abstract: An image forming apparatus is provided which is capable of immediately performing a recording operation in the case where the apparatus is restored to the operation state from the waiting state. The image forming apparatus has an MPU for performing switching between a normal operation mode, in which the apparatus is operated with normal electric power, and a low power consumption operation mode, in which the apparatus is operated with a low power consumption which is smaller than the normal electric power, so as to reduce electric power consumption. When the MPU switches the mode of the apparatus from the low power consumption operation mode to the normal operation mode, an initial-rotation inhibition signal for inhibiting initial rotation of a motor is generated. In response to the initial-rotation inhibition signal, the initial rotation of the motor is inhibited.

    Abstract translation: 提供了一种图像形成装置,其能够在装置从等待状态恢复到操作状态的情况下立即执行记录操作。 图像形成装置具有用于在正常操作模式(其中装置以正常电力操作)和低功耗操作模式之间进行切换的MPU,其中以低功耗操作该装置,该功率小于 正常的电力,从而降低电力消耗。 当MPU将设备的模式从低功耗操作模式切换到正常操作模式时,产生用于禁止电动机的初始旋转的初始旋转禁止信号。 响应于初始旋转抑制信号,电动机的初始旋转被抑制。

    Facsimile apparatus and method outputting results of facsimile
communication
    17.
    发明授权
    Facsimile apparatus and method outputting results of facsimile communication 失效
    传真机和输出传真结果的方法

    公开(公告)号:US5724157A

    公开(公告)日:1998-03-03

    申请号:US647293

    申请日:1996-05-09

    Abstract: A facsimile apparatus is provided in which, when communication management data stored in a communication management-data storage unit and prescribed communication image data that has been stored in an accumulating memory are combined and outputted, required zoom processing is executed by a system controller and the communication management data and prescribed communication image data are combined and outputted in such a manner that the data will fit on one page.

    Abstract translation: 提供了一种传真装置,其中当存储在通信管理数据存储单元中的通信管理数据和已经存储在累积存储器中的规定通信图像数据组合并输出时,系统控制器执行所需的变焦处理, 通信管理数据和规定的通信图像数据以使数据适合一页的方式组合和输出。

    High quality image size change
    18.
    发明授权
    High quality image size change 失效
    高质量的图像尺寸变化

    公开(公告)号:US5717793A

    公开(公告)日:1998-02-10

    申请号:US376450

    申请日:1995-01-23

    CPC classification number: H04N1/40075 G06T3/40 H04N1/3935

    Abstract: When enlargement processing is performed, binary image data inputted from a data line 100 is subjected to contour smoothing by a contour smoothing and enlarging circuit 2 and the data is enlarged by a factor of n (where n is an integer) in the main scanning direction and m (where m is an integer) in the subordinate scanning direction. When reduction processing is performed, the binary image data is outputted as is from a selector 6 to a multivalue-converting circuit 3 via a signal line 200. In the multivalue-converting circuit 3, the binary image is stored temporarily in a memory, the image data of any area is extracted, image data of multivalued density is calculated based upon a window outputted from a weighting table with reference to an area comprising a pixel of interest and its peripheral pixels, and the multivalued data is outputted to a variable-power circuit 4 via a signal line 300. In the variable-power circuit 4, the multivalued-density image data is zoomed down to any size by thinning-out processing based on an image clock and line synchronizing signal, and the resulting data is outputted to a binarizing circuit 5 via a signal line 400. The binarizing circuit 5 converts the image data of multivalued density into binary data and outputs this data on a data line 500.

    Abstract translation: 当进行放大处理时,通过轮廓平滑和放大电路2对从数据线100输入的二进制图像数据进行轮廓平滑,并且在主扫描方向上数据被放大n倍(其中n是整数) 和m(其中m是整数)。 当执行缩小处理时,二进制图像数据经由信号线200从选择器6输出到多值转换电路3.在多值转换电路3中,二进制图像临时存储在存储器中, 提取任何区域的图像数据,参照包含感兴趣像素及其周边像素的区域,基于从加权表输出的窗口来计算多值密度的图像数据,将多值数据输出为可变功率 在可变功率电路4中,通过基于图像时钟和行同步信号的稀疏处理将多值密度图像数据缩小到任何大小,并将所得到的数据输出到 二值化电路5通过信号线400.二值化电路5将多值密度的图像数据转换为二进制数据,并将该数据输出到数据线500上。

    Image processing apparatus and image processing method
    19.
    发明授权
    Image processing apparatus and image processing method 有权
    图像处理装置和图像处理方法

    公开(公告)号:US07495669B2

    公开(公告)日:2009-02-24

    申请号:US10739344

    申请日:2003-12-19

    CPC classification number: G06T1/60 G06T1/0007

    Abstract: To provide an image processing technique compatible with both a CCD and a CIS, which controls storage of image data read by each device in a memory and the read of the stored data for each rectangular area to obtain a high memory efficiency, an image processing apparatus includes a memory area control section which sets, for image data bitmapped on a first memory, a rectangular area divided in a main scanning direction and sub-scanning direction, an address generation section which generates address information to read out image data corresponding to the rectangular area in correspondence with the set rectangular area, a memory control section which reads out the image data corresponding to the rectangular area and DMA-transfers the image data to a second memory in accordance with the generated address information, and an image processing section which executes image processing for each rectangular area of the DMA-transferred data by using the second memory.

    Abstract translation: 为了提供与CCD和CIS兼容的图像处理技术,其控制存储器中的每个设备读取的图像数据的存储器以及用于每个矩形区域的存储的数据的读取以获得高的存储器效率,图像处理装置 存储区域控制部分,对于在第一存储器上位映射的图像数据,设置在主扫描方向和副扫描方向上分割的矩形区域,生成地址信息以读出对应于矩形的图像数据的地址信息 区域,与设置的矩形区域对应的存储器控​​制部分,读出对应于矩形区域的图像数据的存储器控​​制部分,并且根据生成的地址信息将图像数据DMA传送到第二存储器;以及图像处理部件,其执行 通过使用第二存储器对DMA传送数据的每个矩形区域进行图像处理。

    Image processing utilizing luminance-density conversion
    20.
    发明授权
    Image processing utilizing luminance-density conversion 失效
    利用亮度密度转换的图像处理

    公开(公告)号:US06373990B1

    公开(公告)日:2002-04-16

    申请号:US09450419

    申请日:1999-11-30

    CPC classification number: H04N1/4057 G06T3/40 G06T3/4007 H04N1/4056

    Abstract: Disclosed are an image processing method and apparatus for applying spatial filtering processing to n-bit multilevel image data, converting the processing image data to two-level or multilevel image data and converting the resulting image data to data capable of being expressed using high-resolution dots. The filtered image data is subjected to a luminance-to-density conversion and is further converted to two or four levels by a four-level/two-level conversion circuit which makes common use of circuitry for executing both two-level error diffusion processing and four-level error diffusion processing. The four-level/two-level conversion circuit clamps the error produced in four-level conversion processing to the number of significant bits of the error produced at execution of the two-level conversion processing. As a result, a common circuit can be used for both the two-level conversion processing and the four-level conversion processing.

    Abstract translation: 公开了一种用于对n位多级图像数据应用空间滤波处理的图像处理方法和装置,将处理图像数据转换为二级或多级图像数据,并将得到的图像数据转换成能够使用高分辨率 圆点 经滤波的图像数据经受亮度到浓度转换,并且通过四电平/两电平转换电路进一步转换成两个或四个电平,这四个电平/二电平转换电路共同使用用于执行两级误差扩散处理和 四级误差扩散处理。 四电平/二电平转换电路将四电平转换处理中产生的误差钳位为执行两电平转换处理时产生的错误的有效位数。 结果,可以将公共电路用于两电平转换处理和四电平转换处理。

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