Invention Grant
- Patent Title: Image processing apparatus and method for controlling the same
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Application No.: US15604962Application Date: 2017-05-25
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Publication No.: US10424055B2Publication Date: 2019-09-24
- Inventor: Tadayoshi Nakayama
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2016-106713 20160527; JP2017-061882 20170327
- Main IPC: G06T5/00
- IPC: G06T5/00

Abstract:
The invention realizes, with a circuit size having a small number of multipliers, one-dimensional cubic interpolation, which is a primitive calculation of two-dimensional bicubic interpolation that is often used as high image quality interpolation processing of images. An image processing apparatus includes a first linear interpolation calculator that generates an interpolated pixel value at an interpolation position through linear interpolation, based on pixel values of a pair of pixels among a plurality of pixels, a plurality of second linear interpolation calculators that generate a plurality of correction values by respectively performing linear interpolation based on a pair of difference values among a plurality of difference values between pixel values of the plurality of pixels, and a calculator that generates a pixel value at the interpolation position based on the interpolated pixel value and the plurality of correction values.
Public/Granted literature
- US20170345137A1 IMAGE PROCESSING APPARATUS AND METHOD FOR CONTROLLING THE SAME Public/Granted day:2017-11-30
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