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    • 3. 发明授权
    • Image processing apparatus
    • 图像处理装置
    • US5586227A
    • 1996-12-17
    • US855083
    • 1992-03-20
    • Takashi KawanaKaoru SetoHiroshi ManoHiromichi YamadaAtsushi KashiharaTetsuo Saito
    • Takashi KawanaKaoru SetoHiroshi ManoHiromichi YamadaAtsushi KashiharaTetsuo Saito
    • G06K15/00G06F15/00
    • G06K15/00G06K2215/006G06K2215/0077
    • An image processing apparatus which generates an output image based on inputted print data, includes a resolution converting device which converts image data corresponding to the inputted print data at a first resolution into image data having a second resolution. The image conversion device includes a plurality of arithmetic processing units each of which performs computations which differ from the others, with one of the plurality of arithmetic processing unit being selected in dependence upon a recording density set for recording the output image. In other aspects, the resolution conversion computation can be input into the device from an external device. In situations where the generated output image is recorded on a pulse-width-modulated device, such as a laser beam printer, it is possible to control the pulse-width based on the density set for recording.
    • 一种基于输入的打印数据生成输出图像的图像处理装置,包括分辨率转换装置,其以与第一分辨率对应的输入的打印数据的图像数据转换为具有第二分辨率的图像数据。 图像转换装置包括多个算术处理单元,每个运算处理单元执行与其他运算不同的计算,其中,根据为记录输​​出图像设置的记录密度来选择多个算术处理单元中的一个。 在其他方面,分辨率转换计算可以从外部设备输入到设备中。 在产生的输出图像被记录在诸如激光束打印机的脉冲宽度调制装置的情况下,可以基于为记录设置的密度来控制脉冲宽度。
    • 4. 发明授权
    • Image processing apparatus and method
    • 图像处理装置及方法
    • US5381522A
    • 1995-01-10
    • US855104
    • 1992-03-20
    • Kaoru SetoAtsushi Kashihara
    • Kaoru SetoAtsushi Kashihara
    • G06K15/02G06T3/40G06F15/62
    • G06T3/4007G06K15/02G06K2215/0057
    • An image processing apparatus where plural line memories store first image information corresponding to a first recording density based on input image data for plural lines, and a logical circuit included in a decision circuit determines a pixel data to be interpolated corresponding to the pixel position of second image information when the first image information is converted to the second image information in accordance with the stored first image information for plural lines. A logical circuit also included in the decision circuit detects an predetermined pattern in accordance with the stored image information for plural lines when the pixel data to be interpolated is determined, calculates a logical expressions for predetermined pattern diffusing processing, and determines a value of the pixel to be interpolated to diffuse the predetermined pattern in the second image information. With the above structure image information for a lower recording density is converted to information for a higher recording density, where half-tone images in high quality can be obtained.
    • 一种图像处理装置,其中多个行存储器基于多行的输入图像数据存储与第一记录密度相对应的第一图像信息,并且包括在判定电路中的逻辑电路根据第二记录密度的像素位置来确定要内插的像素数据 根据所存储的多条线的第一图像信息将第一图像信息转换为第二图像信息时的图像信息。 还包括在判定电路中的逻辑电路在确定要插值的像素数据时根据所存储的多行的图像信息来检测预定图案,计算预定图案扩散处理的逻辑表达式,并且确定像素的值 被内插以在第二图像信息中扩展预定图案。 利用上述结构,用于较低记录密度的图像信息被转换为可获得高质量的半色调图像的较高记录密度的信息。
    • 7. 发明授权
    • Image smoothing using selection among plural pre-stored pixel patterns
as smoothed data
    • 使用多个预先存储的像素图案之间的选择作为平滑数据进行图像平滑
    • US5652660A
    • 1997-07-29
    • US430161
    • 1995-04-27
    • Kaoru SetoKiyoshi KanaiwaMichio ItohHiroshi ManoHiromichi YamadaAtsushi KashiharaTakashi KawanaHiroshi AtobeTetsuo Saito
    • Kaoru SetoKiyoshi KanaiwaMichio ItohHiroshi ManoHiromichi YamadaAtsushi KashiharaTakashi KawanaHiroshi AtobeTetsuo Saito
    • G06K15/12H04N1/387G01D15/14G06K9/40G06K9/46
    • G06K15/1214G06K15/128G06K2215/0011G06K2215/0057G06K2215/006G06K2215/0071
    • Binary data (VDO) developed to a dot pattern are sequentially stored in line memories (1-9). A processing circuit (43) is constituted by a logic calculation circuit, and determines an edge portion of an image or a halftone image on the basis of 11.times.9 pixel data in shift registers (34-43). When the edge portion of an image is determined, data of a pixel of interest is converted to data that can print a smooth edge portion. Changed data (VDOM) is converted again according to the type of toner. The converted signal is supplied to a laser driver of a printer, and a printing operation is performed by scanning a laser. A resolution setting unit (1700) receives a resolution setting command from an external apparatus (1300), and sets a designated resolution in a printer (1200) according to the resolution setting command. The resolution setting unit (1700) divides one pixel into an optimal number of pixel sections on the basis of the designated resolution, and sets a logic circuit for performing optimal smoothing processing for divided data in a smoothing unit (1018). Bit map development based on code data supplied from the external apparatus (1300), and smoothing processing according to a smoothing logic, are performed.
    • 显影为点图案的二进制数据(VDO)被顺序存储在行存储器(1-9)中。 处理电路(43)由逻辑运算电路构成,根据移位寄存器(34-43)中的11×9像素数据,确定图像的边缘部分或半色调图像。 当确定图像的边缘部分时,感兴趣的像素的数据被转换成能够打印平滑边缘部分的数据。 更改的数据(VDOM)将根据墨粉类型再次进行转换。 转换的信号被提供给打印机的激光驱动器,并且通过扫描激光器执行打印操作。 分辨率设定单元(1700)从外部设备(1300)接收分辨率设置命令,并根据分辨率设置命令在打印机(1200)中设置指定的分辨率。 分辨率设置单元(1700)根据指定的分辨率将一个像素划分为最佳数量的像素部分,并且设置用于对平滑单元(1018)中的分割数据执行最佳平滑处理的逻辑电路。 执行基于从外部设备(1300)提供的代码数据和根据平滑逻辑的平滑处理的位图开发。