Interpolation processing method and apparatus for image signals

Details Interpolation processing method and apparatus for image signals Interpolation processing method and apparatus for image signals

1997-03-14

1999-09-14

Boudreau, Leo H.

Image analysis

Image transformation or preprocessing

Changing the image coordinates

382276, 382298, 382301, 358525, G06K 932

Patent

active

059534656

ABSTRACT:
A judgment is made as to whether an interpolation point in an original image is or is not located at an image edge portion. The judgment is made by using a threshold value having been set such that, as a desired level of sharpness of an interpolation image obtained from interpolation processing becomes low, the threshold value may become large. When an interpolation point is judged as being located at an image edge portion, an interpolated image signal component corresponding to the interpolation point is calculated with interpolation processing capable of keeping the image edge portion sharp. When an interpolation point is judged as not being located at an image edge portion, an interpolated image signal component corresponding to the interpolation point is calculated with the interpolation processing, which is carried out by combining interpolation processing for obtaining an interpolation image, which has a comparatively high sharpness, and interpolation processing for obtaining an interpolation image, which has a low sharpness.

REFERENCES:
patent: 5048105 (1991-09-01), Adachi
patent: 5054100 (1991-10-01), Tai
patent: 5194941 (1993-03-01), Girmaldi et al.
patent: 5598182 (1997-01-01), Berend et al.
patent: 5608856 (1997-03-01), McInally
patent: 5737101 (1998-04-01), Ito

Affiliated with

Also associated with

Rating

Interpolation processing method and apparatus for image signals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interpolation processing method and apparatus for image signals , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interpolation processing method and apparatus for image signals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1518192