-In this paper, we propose a novel method for improving digital image recovery from print – scan channel. A printed photograph is not sufficient to recover the original digital image because of distortions introduced in scanning process. The proposed approach recovers the print – scan images with improved quality. We solve this approximation problem by combining both the photograph and the digi...

Image quality metrics have become more and more popular in the image processing community. However, so far, no one has been able to define an image quality metric well correlated with the percept for overall image quality. One of the causes is that image quality is multi-dimensional and complex. One approach to bridge the gap between perceived and calculated image quality is to reduce the compl...

Conventional wisdom holds that remanufacturing is always the most environmentally-sustainable end-of-life treatment for toner and inkjet cartridges. However, life cycle assessments of non-Original Equipment Manufacturer (OEM) remanufactured print cartridges show that issues with print quality, reliability, and end-of-life management practices offset the benefits accrued through reuse. Therefore...

Jing, Xiaochen Ph.D., Purdue University, December 2013. Research on Print Defect Visibility and Evaluation . Major Professor: Jan P. Allebach. Banding is a well-known artifact produced by printing systems. It usually appears as lines perpendicular to the process direction of the print. Therefore, banding is an important print quality issue which has been analyzed and assessed by many researcher...

In this paper, the problem of print quality inspection on pharmaceutical capsules is addressed. Good print quality, a property that makes the print legible, is of utmost importance for identification and preventing mix-ups among various types of capsules. Spatial distortion obtained at image formation process, where a 3-D surface gets projected onto a 2-D image plane, causes print appearance va...

An important aspect of image and print quality is the existence of artifacts, such as compression or print artifacts. A general perceptual masking model, that describes the perceptual severity of artifacts on general background, could have been used to extract specific artifact detectors. However, currently general models are not mature enough to provide print artifact detectors for commercial ...

Different paper grades have been used to evaluate the optical formation measurements for newsprint and SC paper. Formation of the SC papers has been measured both before and after supercalendering to see how it affects the optical measurements. The optical measurements have been compared to β-radiation measurements and the results showed that optical measurements give a fair estimation of the f...

With the continuous development of the printing industry, print quality has significantly improved and enhanced. The evaluation of the print quality is mainly based on the objective and supplemented subjective methods, and it has changed from the traditional empirical judgments to science of quantitative analysis. So it improves the quality of management, scientific, standardized and rationalit...

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