Title :
Anisotropic shock filter for enhancement and non-photorealistic generation of flow patterns
Author :
Inoue, K. ; Urahama, K.
Author_Institution :
Fac. of Design, Kyushu Univ., Fukuoka, Japan
Abstract :
An anisotropic shock filter is designed for edge-preserving enhancement of flow patterns in grayscale and color images. Edges are sharpened in the direction of the principal eigenvector of the structure tensor and gaps in lines are closed. The filter is applied to non-photorealistic enhancement of painting strokes and transforming photographs to oil-painting like images with active generation of flow patterns.
Keywords :
colour photography; edge detection; eigenvalues and eigenfunctions; filtering theory; image colour analysis; image enhancement; nonlinear filters; partial differential equations; tensors; anisotropic shock filter; color image; color photographs; edge preserving enhancement; grayscale image; nonphotorealistic flow patterns; oil painting image; oil painting stroke; partial differential equations; principal eigenvector; tensors; Anisotropic magnetoresistance; Color; Electric shock; Kernel; Lubricating oils; Nonlinear filters; Partial differential equations; Pixel; Smoothing methods; Tensile stress;
Conference_Titel :
Circuits and Systems, 2004. MWSCAS '04. The 2004 47th Midwest Symposium on
Print_ISBN :
0-7803-8346-X
DOI :
10.1109/MWSCAS.2004.1353981
