Computer graphics: principles and practice (2nd ed.)
Computer graphics: principles and practice (2nd ed.)
S+-trees: an efficient structure for the representation of large pictures
CVGIP: Image Understanding
Journal of Visual Communication and Image Representation
IEEE Transactions on Image Processing
Improved block truncation coding based on the void-and-cluster dithering approach
IEEE Transactions on Image Processing
Multiresolution image representation using combined 2-D and 1-D directional filter banks
IEEE Transactions on Image Processing
IEEE Transactions on Image Processing
A moment-based approach for deskewing rotationally symmetric shapes
IEEE Transactions on Image Processing
Accurate Calculation of Image Moments
IEEE Transactions on Image Processing
Orthogonal Rotation-Invariant Moments for Digital Image Processing
IEEE Transactions on Image Processing
Fast Computation of Chebyshev Moments
IEEE Transactions on Circuits and Systems for Video Technology
A novel gray image representation using overlapping rectangular NAM and extended shading approach
Journal of Visual Communication and Image Representation
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Computing moments on images is very important in the fields of image processing and pattern recognition. The non-symmetry and anti-packing model (NAM) is a general pattern representation model that has been developed to help design some efficient image representation methods. In this paper, inspired by the idea of computing moments based on the S-Tree coding (STC) representation and by using the NAM and extended shading (NAMES) approach, we propose a fast algorithm for computing lower order moments based on the NAMES representation, which takes O(N) time where N is the number of NAM blocks. By taking three idiomatic standard gray images `Lena', `F16', and `Peppers' in the field of image processing as typical test objects, and by comparing our proposed algorithm with the conventional algorithm and the popular STC representation algorithm for computing the lower order moments, the theoretical and experimental results presented in this paper show that the average execution time improvement ratios of the proposed NAMES approach over the STC approach, and also the conventional approach are 26.63%, and 82.57% respectively while maintaining the image quality.