US 6,856,706 B2 · Image processing method and system, and storage medium

Abstract

Output-size information G1 and reference-resolution information G0 are input to a zoom-rate section. The zoom-rate section derives zoom-rates M1 and M2, based on the output-size information G1 and the reference-resolution information G0. A reconstruction section reconstructs an image at the resolution level corresponding to the specified zoom-rate M1. A parameter-setting section derives an image-processing parameter K1 suitable for the resolution level of a reconstructed-image signal S1, based on the zoom-rate M1, reference-resolution information G0, and reference-processing parameter K0, and sets the derived parameter K1 to the image-processing section. The image-processing section obtains a processed-image signal S2 by performing image processing, using the image-processing parameter K1. A zoom-processing section performs a zoom process on the processed-image signal S2, using the zoom rate M2.

Claims47

Dependent claims

An image-processing method comprising the steps of:

reconstructing an image which has a resolution differing from a reference-resolution, based on an image signal subjected to a multiple-resolution transformation process;
and
calculating an image-processing parameter, based on a reference-processing parameter employed in performing a predetermined image-processing process on a reference-resolution image having said reference resolution, said image-processing parameter being employed in performing said predetermined image-processing process on the reconstructed image and causing the image characteristics of said reconstructed image subjected to said predetermined image processing process to be substantially the same as the image characteristics of said reference-resolution image subjected to said predetermined image-processing process.

An image-processing system comprising:

reconstruction means for reconstructing an image which has a resolution differing from the reference-resolution, based on an image signal subjected to a multiple-resolution transformation process;
image-processing means for performing a predetermined image-processing process on the reconstructed image;
and
parameter-setting means for deriving an image-processing parameter, based on a reference-processing parameter employed in performing a predetermined image-processing process on a reference-resolution image having said reference-resolution, and setting the derived image-processing parameter to said image-processing means, said image-processing parameter being employed in performing said predetermined image-processing process on said reconstructed image and causing the image characteristics of said reconstructed image subjected to said predetermined image-processing process to be substantially the same as the image characteristics of said reference-resolution image subjected to said predetermined image-processing process, approximately the same.

1 more element

A computer readable storage medium recording a program to be executed by a computer, said program comprising:

a procedure for reconstructing an image having a resolution differing from the reference-resolution, based on an image signal subjected to a multiple-resolution transformation process;
a procedure for calculating an image-processing parameter, based on a reference-processing parameter employed in performing a predetermined image-processing process on a reference-resolution image having said reference-resolution, said image-processing parameter being employed in performing said predetermined image-processing on said reconstructed image and causing the image characteristics of said reconstructed image subjected to said predetermined image-processing to be substantially the same as the image characteristics of said reference-resolution image subjected to said predetermined image-processing;
and
a procedure for performing said predetermined image-processing process on said reconstructed image by use of said image-processing parameter.

1 more element

Dependencies are inferred from the claim text.

Image processing method and system, and storage medium

Life of this patent

Image processing method and system, and storage medium

Life of this patent

Abstract

Claims47