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High Quality Raster Image Resizing Using Linear Weighted Manipulation

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Due to the versatile customer applications and especially for large size industrial printing needs, the conflict comes between the image enlargement and high resolution quality. The image resizing process introduces specific pixels to the original image, or leaves out specific pixels from the original image. In order to maintain image quality and non-distortion, the value of such pixels and their positions were carefully deliberated. Prior researches such as DCT-based [2], wavelets, pixel replication linear interpolation [1] [3] those were limited by bandwidth and storage spaces, therefore a high efficiency resizing method is proposed in this paper. We introduce a new simple and high quality image-resizing algorithm that using linear weighted method for enlarging and drawing out particular pixels for reducing image size. The enlarging is first procedure and following with reducing procedure, where the image boundaries between those procedures needed to be carefully identification by linear weighted to avoid resolution loss. The simulation suggested the image can be enlarged up to four times and reduced down to quarter of original image at no resolution deterioration, and save the storage space need of fifty percent. Besides, the separation procedure is independent on enlarging procedure that can be operated if the image only needs to be reduced, same performance as mentioned before. This algorithm had been implemented by hardware and it will easily operate in software function in near future.
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Document Type: Research Article

Publication date: 2006-01-01

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  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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