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    • 110. 发明授权
    • Image processing apparatus and method, computer program, and storage medium
    • 图像处理装置和方法,计算机程序和存储介质
    • US07127115B2
    • 2006-10-24
    • US10393069
    • 2003-03-21
    • Hidefumi OsawaTadayoshi NakayamaKen-ichi OhtaShinichi KatoNaoki Ito
    • Hidefumi OsawaTadayoshi NakayamaKen-ichi OhtaShinichi KatoNaoki Ito
    • G06K9/36G06K9/46
    • G06T9/005
    • The present invention allows an image to be coded within a target size without necessitating the image to be input again during the coding of the image, with a mode reflecting a user's intention for coding. To solve this problem, input image data is coded at coding unit 102 and stored into first and second memories, respectively. Coding sequence unit 108 monitors the quantity of codes. When a set value is determined to be reached, coding sequence unit 108 makes data in first memory to be discarded and directs coding means to further increase a quantization step, and continues coding. As previous coded data is stored in second memory, the data is re-coded with the same quantization step as that of coding unit 102 after changing of a parameter at re-coding unit 109, and the re-coded data is stored into first and second memory. At this moment, coding unit 102 and re-coding unit 109 perform an operation and coding on quantization error according to a mode of quantization operation designated at mode designation unit 125.
    • 本发明允许将图像编码在目标尺寸内,而不需要在图像编码期间再次输入图像,其中模式反映用户的编码意图。 为了解决这个问题,输入图像数据被分别编码在编码单元102中并存储到第一和第二存储器中。 编码序列单元108监视代码的数量。 当确定要达到设定值时,编码序列单元108使第一存储器中的数据被丢弃,并指示编码装置进一步增加量化步长,并继续编码。 由于先前的编码数据存储在第二存储器中,所以在重新编码单元109中改变参数之后,以与编码单元102相同的量化级重新编码数据,并将重新编码的数据存储在第一存储器 第二个记忆 此时,编码单元102和重新编码单元109根据在模式指定单元125指定的量化操作的模式来执行对量化误差的操作和编码。