Principles of interactive computer graphics (2nd ed.)
Principles of interactive computer graphics (2nd ed.)
Digital image processing
Digital Picture Processing
The use of grayscale for improved raster display of vectors and characters
SIGGRAPH '78 Proceedings of the 5th annual conference on Computer graphics and interactive techniques
Separable image warping with spatial lookup tables
SIGGRAPH '89 Proceedings of the 16th annual conference on Computer graphics and interactive techniques
A pyramid-based approach to interactive terrain visualization
PRS '93 Proceedings of the 1993 symposium on Parallel rendering
Inner-block operations on compressed images
Proceedings of the third ACM international conference on Multimedia
Towards an efficient, dedicated architecture for a Digital Geometric Image Transformer (DGIT)
ACM SIGARCH Computer Architecture News
A conceptual model of raster graphics systems
SIGGRAPH '82 Proceedings of the 9th annual conference on Computer graphics and interactive techniques
Pictorial man-machine communication
ACM '81 Proceedings of the ACM '81 conference
A parallel implementation of geometric transformations
Pattern Recognition Letters
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Raster graphics images are difficult to smoothly rotate and zoom because of geometric digitization error. A new algorithm is presented for continuous rotation and zoom, free from the disturbing aliasing artifacts introduced by traditional methods. Applications include smooth animation. No matrix multiplication of pixel coordinates is executed. Instead row and column parallel operations which resemble local digital filters are used. This suggests real time implementation with simple hardware. Anti-aliasing is inherent in the algorithm which operates solely on pixel data, not the underlying geometric structures whose images the pixels may depict. Zoom magnification is achieved without replicating pixels and is easily attained for any rational scale factor including but not restricted to the integer values which most existing commercial raster graphics systems use. The algorithm is based on a digitized code for lines on rasters, generalized to an interpolation scheme capable of executing all linear geometric transformations. Samples of images which have been rotated and zoomed by a software implementation of the algorithm are presented.