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US 8,798,364 B2Granted
Image processing system and image processing method
AssigneeVIA Technologies, Inc.
InventorsYi-Fei Zhu, Chu-Yang Hong, Guo-Feng Zhang
Life of this patent
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Abstract
An image processing apparatus and a method thereof are provided. A plurality of target blur radii are obtained by calculating blur radiuses corresponding to the out of focus transform function between a deblurred datum color channel image and the other color channel images. A plurality of deblurred color channel images are obtained by respectively performing deblurring operations on the original channel images according to the target blur radii that are corresponding to the original channel images. The deblurred datum color channel image and the deblurred color channel images are combined to obtain a blur calibrated image. Accordingly, the image out of focus problem induced by dispersion can be solved.
Claims24
An image processing system, comprising:
- a photography apparatus having a processor and a storage apparatus, wherein the processor is configured to load a plurality of instruction from the storage apparatus to perform:
- a color channel image generation module generating a plurality of original color channel images according to an original image;
- a sharpness selection module selecting a sharpest original color channel image from the original color channel images as a deblurred datum color channel image;
- an calculation module trialing a blur radius value corresponding to an out of focus transform function between the deblurred datum color channel image and the other original color channel images, so as to obtain a plurality of target blur radius values, and respectively performs a deblurring operation on the original color channel image corresponding to each of the target blur radius values according to the target blur radius value, so as to obtain a plurality of deblurred color channel images;
- an image combination module combining the deblurred datum color channel image and the deblurred color channel images to obtain a blur calibrated image;
- and
- an image feature recognition module respectively performing a feature point recognition algorithm on the original color channel images, so as to respectively find out a plurality of feature points in each of the original color channel images, wherein the calculation module further calculates transformation matrixes between every two of the original color channel images according to the feature points, and the calculation module selects a shift datum color channel image from the original color channel images, and according to transformation matrixes corresponding to the shift datum color channel image, the calculation module transforms the other original color channel images, so as to obtain a plurality of shift calibrated color channel images, wherein the original color channel image corresponding to the shift datum color channel image has the minimum distortion.
4 more elements
An image processing method, comprising:
- a plurality of original color channel images is generated according to an original image;
- a sharpest one of the original color channel images is selected from the original color channel images as a deblurred datum color channel image;
- a blur radius value corresponding to an out of focus transform function between the deblurred datum color channel image and the other original color channel images is trialled, so as to obtain a plurality of target blur radius values;
- a deblurring operation is respectively performed on the original color channel image corresponding to each of the target blur radius values according to the target blur radius value, so as to obtain a plurality of deblurred color channel images;
- respectively performing a feature point recognition algorithm on the original color channel images, so as to respectively find out a plurality of feature points in each of the original color channel images;
- calculating the transformation matrixes between every two of the original color channel images according to the feature points;
- selecting a shift datum color channel image from the original color channel images, wherein the original color channel image corresponding to the shift datum color channel image has the minimum distortion;
- transforming the other original color channel images according to transformation matrixes corresponding to the shift datum color channel image, so as to obtain a plurality of shift calibrated color channel images;
- and
- combining the deblurred datum color channel image, the deblurred color channel images, the shift datum color image, and the shift calibrated color images to obtain a final calibrated image.
7 more elements
Dependencies are inferred from the claim text.