A PROCEDURE FOR THE CALCULATION OF BACKGROUND IN IMAGES

被引:14
作者
ALMOZNINO, E [1 ]
LOINGER, F [1 ]
BROSCH, N [1 ]
机构
[1] TEL AVIV UNIV,RAYMOND & BEVERLY SACKLER FAC EXACT SCI,SCH PHYS & ASTRON,IL-69978 TEL AVIV,ISRAEL
关键词
METHODS; DATA ANALYSIS; TECHNIQUES; IMAGE PROCESSING;
D O I
10.1093/mnras/265.3.641
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a routine that calculates the sky level of images. This routine is general in the sense that it can be applied to any image, independent of the instrument with which it was obtained, to get a reliable value for the sky background. This is achieved by optimizing the parameters of the calculation to give the best result for every frame. We compare the routine to other sky-calculating routines, and obtain similar or more reliable results with our routine in all cases. The routine is currently implemented as a FORTRAN program within VISTA image-processing software, and it may be provided as a stand-alone FORTRAN program after some minor changes.
引用
收藏
页码:641 / 648
页数:8
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