Invention Grant
US07564578B2 Image communication apparatus, method and storage medium for transmitting or receiving a color image
失效
用于发送或接收彩色图像的图像通信装置,方法和存储介质
- Patent Title: Image communication apparatus, method and storage medium for transmitting or receiving a color image
- Patent Title (中): 用于发送或接收彩色图像的图像通信装置,方法和存储介质
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Application No.: US11202105Application Date: 2005-08-12
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Publication No.: US07564578B2Publication Date: 2009-07-21
- Inventor: Toshiaki Saito , Takehiro Yoshida , Yuji Kurosawa , Shoichi Yamaguchi , Daisuke Suga
- Applicant: Toshiaki Saito , Takehiro Yoshida , Yuji Kurosawa , Shoichi Yamaguchi , Daisuke Suga
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP11-186727 19990630
- Main IPC: G06F15/00
- IPC: G06F15/00 ; G06F3/00

Abstract:
In an image communication apparatus for communicating a color image with a distant apparatus according to the ITU-T recommendations upon line connection, an original image is read by a scanner unit, and the size of the read original image is identified. If the identified size of the original image is smaller than the page size defined by the ITU-U recommendation, image data is generated by reading the original image upon adding invalid data to the original image to make it have a main scanning length equal to the main scanning length of the minimum page size defined by the ITU-T recommendation in reading the original image through the scanner unit, and the image data is compressed by a JPEG compressing unit and transmitted. In this case, the valid image area of the compressed data is set in accordance with the size of the original image. This allows the receiving side to read only the valid image area, decode the valid image area, and reproduce the image.
Public/Granted literature
- US20050270574A1 Image communication apparatus, method and storage medium for transmitting or receiving a color image Public/Granted day:2005-12-08
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