Invention Grant
US09554015B2 Image compression apparatus to perform compression of image data and dividing pixel value into an invalid and valid region to calculate valid bit width
有权
图像压缩装置执行图像数据的压缩并将像素值划分为无效和有效区域以计算有效位宽度
- Patent Title: Image compression apparatus to perform compression of image data and dividing pixel value into an invalid and valid region to calculate valid bit width
- Patent Title (中): 图像压缩装置执行图像数据的压缩并将像素值划分为无效和有效区域以计算有效位宽度
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Application No.: US14854733Application Date: 2015-09-15
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Publication No.: US09554015B2Publication Date: 2017-01-24
- Inventor: Kenichi Kawauchi
- Applicant: FUJI XEROX CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: FUJI XEROX CO., LTD
- Current Assignee: FUJI XEROX CO., LTD
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2015-057947 20150320
- Main IPC: H04N1/413
- IPC: H04N1/413 ; H04N1/00
Abstract:
Provided is an image compression apparatus including a dividing unit that divides a bit width pixel value set in advance that indicates compressed image information into an invalid bit region and a valid bit region other than the invalid bit region that are replaced with a fixed value determined in advance, an image information conversion unit that makes a value of the valid bit region be a value of a bit corresponding to the pixel value and makes a value of the invalid bit region be the fixed value determined in advance and converts the compressed image information to conversion image information, and a compression unit that compresses the conversion image information.
Public/Granted literature
- US20160277636A1 IMAGE COMPRESSION APPARATUS AND IMAGE PROCESSING APPARATUS Public/Granted day:2016-09-22
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