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Based on the attributes of line quality in digital prints proposed by ISO/IEC 13660 standard, several digital prints' line qualities were evaluated and analyzed in this study. First of all, a test diagram, which consists of lines oriented in horizontal and vertical directions respectively and with different width was designed and output by some digital printers. Then the attributes reflecting the...
In this paper, a mask dodging processing is designed to change the character values of the cloud area and cloud shadow greatly while the normal exposure area in the image can hold these values or change little. A change detection algorithm between the original image and dodging image is proposed to get the cloud area and cloud shadow which calculate and appraisal the feature value together in the...
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