Changeset 3173 for trunk/doc/pslib/psLibADD.tex
- Timestamp:
- Feb 9, 2005, 11:56:45 AM (21 years ago)
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- 1 edited
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trunk/doc/pslib/psLibADD.tex (modified) (4 diffs)
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trunk/doc/pslib/psLibADD.tex
r3172 r3173 1 %%% $Id: psLibADD.tex,v 1. 59 2005-02-09 21:54:44price Exp $1 %%% $Id: psLibADD.tex,v 1.60 2005-02-09 21:56:45 price Exp $ 2 2 \documentclass[panstarrs]{panstarrs} 3 3 … … 1075 1075 column,row of (5,4), (5,5), (6,4), (6,5). 1076 1076 1077 \subparagraph{Nearest Pixel Interpolation ({\tt PS\_ RESAMPLE\_FLAT})}1077 \subparagraph{Nearest Pixel Interpolation ({\tt PS\_INTERPOLATE\_FLAT})} 1078 1078 1079 1079 In this interpolation, the value of the closest pixel is returned. 1080 1080 This is equivalent to pixel duplication or replication. 1081 1081 1082 \subparagraph{Bilinear Interpolation ({\tt PS\_ RESAMPLE\_BILINEAR})}1082 \subparagraph{Bilinear Interpolation ({\tt PS\_INTERPOLATE\_BILINEAR})} 1083 1083 1084 1084 In this interpolation, the value at the coordinate is calculated using … … 1104 1104 (5,5). 1105 1105 1106 \subparagraph{Sinc Interpolation ({\tt PS\_ RESAMPLE\_LANCZOS[234]})}1106 \subparagraph{Sinc Interpolation ({\tt PS\_INTERPOLATE\_LANCZOS[234]})} 1107 1107 1108 1108 Because it would be slow to specify the size of the kernel … … 1110 1110 pixels in each dimension (a kernel of size 2 pixels in each dimension 1111 1111 is handled by the bilinear interpolation). These correspond to the 1112 options \code{PS_ RESAMPLE_LANCZOS2}, \code{PS_RESAMPLE_LANCZOS3} and1113 \code{PS_ RESAMPLE_LANCZOS4}, respectively.1112 options \code{PS_INTERPOLATE_LANCZOS2}, \code{PS_INTERPOLATE_LANCZOS3} and 1113 \code{PS_INTERPOLATE_LANCZOS4}, respectively. 1114 1114 1115 1115 Given a position on the input image, $(x_0,y_0)$, a kernel is derived
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