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    • 4. 发明申请
    • IMAGE PROCESSING DEVICE
    • 图像处理装置
    • US20140147038A1
    • 2014-05-29
    • US14089415
    • 2013-11-25
    • KYOCERA DOCUMENT SOLUTIONS INC.
    • Toshiaki MUTSUOMasaki BABA
    • G06T5/00
    • G06K9/34G06K2209/01
    • In an image processing device, an edge image generation part detects an edge in an original image and generates an edge image constituted from the detected edge. A connected pixel extraction part extracts connected pixel groups in the edge image. A binary image generation part classifies the connected pixel groups under respective colors of the connected pixel groups, and generates a character image for each color. A background image generation part generates a background image of the original image based on the character image so that a pixel value at the position of the character image in the original image is set by an average value of the pixel values in the original image with regard to at least a portion of pixels around a rectangle circumscribing the connected pixel groups. An image compression part compresses respective image data of the character image and background image by different compression manners.
    • 在图像处理装置中,边缘图像生成部检测原始图像中的边缘并生成由检测到的边缘构成的边缘图像。 连接像素提取部分提取边缘图像中的连接的像素组。 二进制图像生成部分将所连接的像素组的相应颜色分类为相关联的像素组的相应颜色,并且为每种颜色生成字符图像。 背景图像生成部基于字符图像生成原始图像的背景图像,使得原始图像中的字符图像的位置处的像素值由原始图像中的像素值的平均值设定为 涉及围绕连接的像素组的矩形周围的至少一部分像素。 图像压缩部分通过不同的压缩方式来压缩字符图像和背景图像的各自的图像数据。