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公开(公告)号：EP1365355B1
公开(公告)日：2016-03-16
申请号：EP03077304.8
申请日：1998-05-28
IPC分类号： G06T5/00
CPC分类号： G06T5/004 , G06T7/12 , G06T2207/10016 , G06T2207/20192
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2.发明公开Image processing apparatus, image processing method, color adjustment method, and color adjustment system 失效图像处理设备，图像处理方法，颜色调整方法和颜色调整系统
公开(公告)号：EP1489833A1
公开(公告)日：2004-12-22
申请号：EP04077594.2
申请日：1998-06-12
IPC分类号： H04N1/62
CPC分类号： H04N9/643 , H04N1/4072 , H04N1/46 , H04N1/6027 , H04N1/62 , H04N1/628
摘要： In conventional image processing techniques, although a certain kind of image adjustment provides a desired effect on an image, it may cause an undesired side effect thereon, resulting in an unsatisfactory result of adjustment.
On a computer serving as the nucleus of image processing, a region applicable to image processing is specified at a step, an object pixel is moved for judging whether or not it belongs to the specified region at the subsequent steps, and then a specified image processing operation is carried out if the object pixel is judged to belong to the specified region. Therefore, adjustment of image data in a certain region does not have an adverse effect on image data in other regions, making it possible to realize satisfactory adjustment in an entire image with ease.
Further, on the computer, chromaticity "x-y" of each pixel is calculated at a step, and statistical calculation is performed at the subsequent steps if a value of chromaticity thus calculated is in a possible chromaticity range. After completion of statistical calculation on all the pixels, an average value is determined at the subsequent step, and a degree of each color adjustment is calculated while taking account of the number of pixels of interest at the subsequent step. In this manner, accurate statistical calculation is performed on color pixels to be adjusted independently of brightness, and a degree of each color adjustment is regulated by taking account of the number of pixels of interest, thereby making it possible to carry out optimum color adjustment processing without giving an adverse effect on colors of surrounding pixels.摘要翻译： 在传统的图像处理技术中，尽管某种形式的图像调整对图像提供了期望的效果，但是其可能导致不希望的副作用，导致调整结果不令人满意。 在作为图像处理的核心的计算机中，在步骤中指定适用于图像处理的区域，在随后的步骤中移动对象像素以判断其是否属于指定区域，然后是指定的图像处理 如果对象像素被判断为属于指定区域，则执行操作。 因此，调整某区域的图像数据不会对其他区域的图像数据造成不良影响，可以容易地实现整个图像的良好调整。 此外，在计算机上，在一个步骤中计算每个像素的色度“x-y”，并且如果如此计算的色度值处于可能的色度范围内，则在随后的步骤中执行统计计算。 在完成所有像素的统计计算之后，在随后的步骤中确定平均值，并且在考虑后续步骤中感兴趣的像素的数量的同时计算每种颜色调整的程度。 以这种方式，对要独立于亮度调整的彩色像素执行精确的统计计算，并且通过考虑感兴趣像素的数量来调整每个颜色调整的程度，从而使得可以执行最佳颜色调整处理 而不会对周围像素的颜色产生不利影响。
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公开(公告)号：EP1517553A1
公开(公告)日：2005-03-23
申请号：EP03764182.6
申请日：2003-07-11
CPC分类号： H04N1/4072 , H04N1/32101 , H04N2201/3242
摘要： The present invention is an image processing apparatus for processing an image data using an image file which includes the image data and image processing control information to be used for processing the image data. The apparatus comprises an automatic picture quality adjuster configured to automatically regulate lightness of the image data according to lightness of a whole image expressed by the image data and an adjustment degree determ iner configured to determine a degree of the auto adjustment based on the image processing control information.
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公开(公告)号：EP1370064B1
公开(公告)日：2007-12-05
申请号：EP02705210.9
申请日：2002-03-14
发明人： Nakami, Yoshihiro, c/o Seiko Epson Corporation , Matsuhira, Masatoshi, c/o Seiko Epson Corporation
CPC分类号： H04N1/00954 , H04N1/00249 , H04N1/217 , H04N1/32358 , H04N1/40
摘要： A color printer (20) allocates all the image processing memory resource amounts to image processing on image data (GD) arranged in the main scanning direction of a print head (IH), reserves respective memory resource amounts to arranged image data (GD), and frees memory resources sequentially on completion of image processing. CPU (51) reserves an image processing memory resource for image data (1) in the storage area of RAM (53), and frees the reserved memory resource on completion of image processing on image data (1). CPU (51) repeats this processing on each element of image data contained in one print job.
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公开(公告)号：EP1365355A2
公开(公告)日：2003-11-26
申请号：EP03077304.8
申请日：1998-05-28
IPC分类号： G06T5/00
CPC分类号： G06T5/004 , G06T7/12 , G06T2207/10016 , G06T2207/20192
摘要： An edge-enhancement processing apparatus which removes problems of the conventional edge enhancement processing, which requires checking by an operator's visual observation or a high-frequency band filter, thus complicating the construction. A computer main body 21, as the nucleus of edge enhancement processing, calculates an edge amount as vector change level while generating a vector based on the difference values of data between adjacent pixels, at step S110, then selects and integrates edge amounts of only pixels having large edge amounts at steps S120 and S130, and obtains the mean value at step S230, to obtain the sharpness level of the image while adding attention to the pixels having large image change levels. The computer main body 21 determines an edge enhancement level Eenhance based on the image sharpness level. Thus, the computer main body 21 automatically performs edge enhancement processing at an optimum enhancement level.
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