Proceedings ArticleDOI
Algorithms for the resizing of binary and grayscale images using a logical transform
TLDR
Algorithms for the resizing of images based on the analysis of the sum of primary implicants representation of image data, as generated by a logical transform are presented.Abstract:
The resizing of data, either upscaling or downscaling based on need for increased or decreased resolution, is an
important signal processing technique due to the variety of data sources and formats used in today's world. Image
interpolation, the 2D variation, is commonly achieved through one of three techniques: nearest neighbor, bilinear
interpolation, or bicubic interpolation. Each method comes with advantages and disadvantages and selection of the
appropriate one is dependent on output and situation specifications. Presented in this paper are algorithms for the
resizing of images based on the analysis of the sum of primary implicants representation of image data, as generated by
a logical transform. The most basic algorithm emulates the nearest neighbor technique, while subsequent variations
build on this to provide more accuracy and output comparable to the other traditional methods. Computer simulations
demonstrate the effectiveness of these algorithms on binary and grayscale images.read more
Citations
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Effect of X-ray CT resolution on the quality of permeability computation for granular soils: definition of a criterion based on morphological properties
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References
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Canny edge detection enhancement by scale multiplication
Paul Bao,Lei Zhang,Xiaolin Wu +2 more
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Linear interpolation revitalized
TL;DR: The theoretical optimal shift that maximizes the quality of the authors' shifted linear interpolation is nonzero and close to 1/5, and this optimal value is similar to that of the computationally more costly "high-quality" cubic convolution.
Journal ArticleDOI
Adaptive image interpolation based on local gradient features
Jung Woo Hwang,Hwang Soo Lee +1 more
TL;DR: This letter presents two adaptive interpolation methods based on applying an inverse gradient to conventional bilinear and bicubic interpolation that can be used irrespective of the magnification factor and easily implemented due to their simple structure.
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