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1. 发明专利

JP4420877B2 Image processing method, image processing apparatus, and an image output device 有权
公开(公告)号：JP4420877B2
公开(公告)日：2010-02-24
申请号：JP2005276334
申请日：2005-09-22
申请人：シャープ株式会社
发明人：牧生後藤 , 健二木村
IPC分类号： G06T7/40 , G06T5/00
CPC分类号： G06K9/4642 , G06K9/00456 , G06K2209/01
摘要： An image processing apparatus and method for capturing an image including characters or graphics, determines whether or not the characters or graphics included in the captured image are prepared by handwriting based on a magnitude of a density gradient in a direction crossing an edge for characters or graphics included in the image, and applies processing to the image in accordance with the result of the determination.

2. 发明专利

JP3519230B2 Color correction method of the image data 失效
公开(公告)号：JP3519230B2
公开(公告)日：2004-04-12
申请号：JP349597
申请日：1997-01-13
申请人：シャープ株式会社
发明人：健二木村
IPC分类号： G03F3/08 , H04N1/46 , H04N1/60
CPC分类号： H04N1/6019
摘要： An image data color correction method includes the step of obtaining a first error with respect to input image data by looking up a first look-up table (A), the step of obtaining a second error with respect to the first error by looking up a second look-up table (B), the step of obtaining an error coefficient on the basis of the ratio between the remainder obtained by dividing the gradation level of the input data by a predetermined number of gradation levels and the predetermined number of gradation levels, and the step of adding the first error and the product of the error coefficient and the second error to the input image data, thereby interpolating the first error and correcting the input image data.

3. 发明专利

JP4236958B2 Image reading device, image reading method 有权
公开(公告)号：JP4236958B2
公开(公告)日：2009-03-11
申请号：JP2003060958
申请日：2003-03-07
申请人：シャープ株式会社
发明人：雅範南 , 知彦岡田 , 牧生後藤 , 健二木村
IPC分类号： G03B27/50 , H04N1/04 , H04N1/028 , H04N1/10 , H04N1/107 , H04N1/387
摘要： PROBLEM TO BE SOLVED: To enable correct reading of image data according to the characteristics of an original image, even if the original image includes a very highly lustrous image such as an image of a metallic color. SOLUTION: A light of a light source 20 is guided to a first irradiation direction A1 and a second irradiation direction A2 to irradiate an original 10 with the guided light, and a reflection light reflecting from the original in a predetermined reflection direction C is guided to a CCD unit 50 for performing photoelectric conversion, so that image data is obtained. At this time, the intensity of light in the irradiation direction A2 is adjusted so as to be weaker than the intensity of light in the irradiation direction A1 by optical amount adjusting means 21, 22 provided on optical paths to the irradiation directions A1, A2, and the direction of light reflection is switched between the directions A1 and A2. Moreover, the image data of the original are composed on the basis of two types of the image data generated from the reflected light of the light of each of the irradiation directions A1 and A2. COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP3822464B2 Image extraction method, a recording medium recording an image processing apparatus and program 有权
公开(公告)号：JP3822464B2
公开(公告)日：2006-09-20
申请号：JP2001180413
申请日：2001-06-14
申请人：シャープ株式会社
发明人：健二木村 , 明濱田
IPC分类号： G06T1/00 , G06T7/00
摘要： PROBLEM TO BE SOLVED: To provide an image extracting method that increase the degree of freedom to area extraction and also can easily extract an image area by selecting the image area arbitrarily by alternately using real space and color space by a user, and to provide an image processor and a recording medium on which a program is recorded. SOLUTION: An area extracting part 10 of an image processor 1 is provided with a range designation processing part 11, a data color accumulation processing part 12, a real space selection processing part 13, a color space selection processing part 14, a closed curve processing part 15, a partial determination processing part 16 for performing partial determination processing, an operation processing part 17 for processing a user's operation instruction by an operation panel, a display processing part 18 for performing display processing of data stored in an original image buffer 21 and in a color space buffer 22, the original image buffer 21, the color space buffer 22, a selected area buffer 23 and a partial determination area buffer 24, and selects a range including an image area desired to be extracted by using both displays of pieces of image data reflecting in each other and a color space distribution coinciding with the image data and extracts the image area.

5. 发明专利

JP4197276B2 Image processing apparatus, an image reading apparatus, an image forming apparatus, and image processing method 有权
公开(公告)号：JP4197276B2
公开(公告)日：2008-12-17
申请号：JP2003197919
申请日：2003-07-16
申请人：シャープ株式会社
发明人：雅範南 , 牧生後藤 , 健二木村
IPC分类号： G06T1/00 , H04N1/48 , H04N1/60 , H04N9/64
CPC分类号： H04N1/6086
摘要： An original is illuminated by a light source alpha or a light source beta, and image data is obtained under these conditions. An absolute value of a difference between image data under these different conditions is compared to a threshold value, and it is judged whether or not a color-unmatch occurs. If the color-unmatch occurs, the color-unmatch is corrected in accordance with a plurality of image data read under different conditions.

6. 发明专利

JP4083042B2 Image reading device, image reading method 有权
公开(公告)号：JP4083042B2
公开(公告)日：2008-04-30
申请号：JP2003060960
申请日：2003-03-07
申请人：シャープ株式会社
发明人：雅範南 , 知彦岡田 , 牧生後藤 , 健二木村
IPC分类号： G06T1/00 , H04N1/04 , H04N1/028 , H04N1/19
摘要： PROBLEM TO BE SOLVED: To enable correct reading of image data according to the characteristics of an original image, even if the original image includes a very highly lustrous image such as an image of a metallic color. SOLUTION: An original 10 is irradiated with each of lights of a first light source 21 and a second light source 22 from a first irradiation direction A1 and a second irradiation direction A2, and a reflection light reflecting from the original in a predetermined direction C is guided to a CCD unit 50 for performing photoelectric conversion, so that image data are obtained. At this time, the intensity of light in the irradiation direction A2 is adjusted so as to be weaker than the intensity of light in the irradiation direction A1 by an optical amount adjusting means 23 provided on an optical path in the second irradiation direction A2, and the light source of light irradiation is switched between the light sources 21 and 22 by turning on/off them. Moreover, the image data of the original are composed on the basis of two types of image data generated from the reflection light of the light of each of the irradiation directions A1 and A2. COPYRIGHT: (C)2004,JPO&NCIPI

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