In this paper, we propose a robust color image watermarking algorithm using local quaternion PHT (Polar Harmonic Transform), which is invariant to various noises, local geometric transformations, and color variations.
This group in the Lie's theory is consists of geometric transformations which act on the set of solutions by transforming their graphs.
In addition, RIME copes well with image format conversion, resampling, requantization and geometric transformations.
"Unifying VLSI Array Designs with Geometric Transformations," (with P. R. Cappello), Proc.
Three design strategies for constructing new geometric transformations on quantum images from other transformations are proposed.
By 1824 he had studied the geometric transformations that led him to the theory of inversive geometry, but he did not publish this work.
Existing slicing algorithms operate by application of geometric transformations upon the input geometry in order to produce the toolpath.
Through a sequence of elementary geometric transformations (reflection, contraction and extension), the initial simplex moves, expands or contracts.
To test robustness several common geometric transformations and signal processing operations are performed using both informed and blind detections for different barcode widths and different quantization levels.
CNN, which can recognize patterns with extreme variability, and with robustness to distortions and simple geometric transformations, is adopted to tackle the vein recognition task.
First, it is accurate even if there are some geometric transformations (rotation angle, scaling factor and translation vector) between the object to be segmented and the prior shape.
