公开(公告)号：US07013042B1

公开(公告)日：2006-03-14

申请号：US09420775

申请日：1999-10-19

申请人： Osamu Yamada ,  Takahiro Matsuura

发明人： Osamu Yamada ,  Takahiro Matsuura

IPC分类号： G06K9/00

CPC分类号： G06T5/40 ,  G06T5/009 ,  G06T2207/10024 ,  G06T2207/20012 ,  G06T2207/20021

摘要： When saturation conversion is done by multiplying data by a saturation conversion parameter with a constant value regardless of image features, an image which can give good impression to the user cannot always be obtained.In this invention, an image is segmented into a predetermined number of blocks, and attributes are discriminated in units of blocks. Conversion characteristics are calculated on the basis of saturation conversion parameters of an image, which are set in correspondence with the discrimination result, and saturation is converted based on the calculated characteristics. In this way, appropriate saturation correction can be achieved in correspondence with the image attribute.

摘要翻译： 当通过将数据乘以饱和度转换参数与常数值进行饱和转换而不管图像特征如何，可以总是不能总是获得可以给用户良好印象的图像。 在本发明中，图像被分割为预定数量的块，并且以块为单位来区分属性。 基于与鉴别结果相对应地设置的图像的饱和转换参数来计算转换特性，并且基于所计算的特性来转换饱和度。 以这种方式，可以根据图像属性来实现适当的饱和度校正。

公开(公告)号：US07002705B2

公开(公告)日：2006-02-21

申请号：US09879195

申请日：2001-06-13

申请人： Akihiko Nakatani ,  Tadashi Yamamoto ,  Kiyoshi Kaneko

发明人： Akihiko Nakatani ,  Tadashi Yamamoto ,  Kiyoshi Kaneko

IPC分类号： H04N1/40

CPC分类号： H04N1/00822 ,  H04N1/0402 ,  H04N1/0405 ,  H04N1/0443 ,  H04N1/0455 ,  H04N1/12 ,  H04N1/128 ,  H04N1/1911 ,  H04N2201/0414

摘要： Disclosed is an image reading apparatus in which the band width for reading by one scanning is variable in accordance with the original size, the reading mode, etc. R, G, and B image data of the k-th band is successively read in one-band width to store image data R1, G1, and B1 of pixel coordinates X(n, m). Then, the original is fed so as to cause partial overlapping of the (k+1)-th band with a lower predetermined pixel region of the k-th band, and R, G, and B image data of the (k+1)-th band is read in one-band width to successively store image data R2, G2, and B2 of pixel coordinates X(n, m′). The image data obtained through overlap reading of the k-th band and the (k+1)-th band is averaged to calculate correction image data, which is transferred to a host computer along with along other image data which has not been averaged as read image data. And, it is possible to optimize reading time according to the kind of original, reading mode, etc., without involving a deterioration in image quality.

摘要翻译： 公开了一种图像读取装置，其中通过一次扫描读取的带宽根据原始尺寸，读取模式等而是可变的。第k个频带的R，G和B图像数据被连续地读取在一个 带宽，以存储像素坐标X（n，m）的图像数据R1，G1和B1。 然后，馈送原稿以使得第（k + 1）个频带与第k个频带的较低预定像素区域的部分重叠，以及（k + 1）的R，G和B图像数据 ）带读取单条宽度，以连续存储像素坐标X（n，m'）的图像数据R2，G2和B2。 对第k个频带和第（k + 1）频带的重叠读取获得的图像数据进行平均，以计算校正图像数据，该校正图像数据与未被平均为读取的其他图像数据一起被传送到主计算机 图像数据。 并且，可以根据原稿的种类，读取模式等优化读取时间，而不会影响图像质量的劣化。