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US08073248B2 Automatic detection of calibration charts in images 有权
自动检测图像中的校准图

Automatic detection of calibration charts in images
Abstract:
Methods and apparatuses for locating an embedded color chart in an image are described. In one exemplary method, an image that includes an embedded color chart is located without the intervention of the user. The embedded color chart is verified and used to create a color profile of the image. Furthermore, the orientation angle of the color chart is determined and the image orientation is fixed based on this angle.
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