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Patent

Method for estimating camera response function

TLDR
In this paper, a method for estimating image conversion parameters is revealed, which uses an image capturing unit to capture at least one captured image of an object to an image processing unit for calculation.
Abstract
A method for estimating image conversion parameters is revealed. Firstly, using an image capturing unit to capture at least one captured image of an object to an image processing unit for calculation. The image processing unit can take linear brightness change of single captured image to estimate the image conversion parameters, also can take comparison of linear and non-linear images to estimate the image conversion parameters, further can take the difference of exposure quantities to estimate the image conversion parameters. Therefore, the estimation of the image conversion parameters can be finished well and easily.

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Citations
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References
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Proceedings ArticleDOI

Radiometric calibration from a single image

TL;DR: This work proposes a method that performs radiometric calibration from only a single image, based on measured RGB distributions at color edges, and employs a Bayesian approach to compute the calibration.
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Image processing method, apparatus and system

TL;DR: In this article, a method for detecting edges in an image along with corresponding apparatus and system for accurately extracting edges in the image is disclosed along with the corresponding apparatus for accurately detecting edges.