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% @(#)testb4ccd.hlq 19.1 (ESO-SDAG) 02/25/03 14:16:56
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%++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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%.COPYRIGHT (c) 1994 European Southern Observatory
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%.KEYWORDS MIDAS, ccd package, bias, testing
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%.PURPOSE On-line help file for the command: TESTB4/CCD
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%.VERSION 940620 RHW created
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%.VERSION 950210 RHW txt output eliminated; printed info reduced
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%---------------------------------------------------------------------
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TESTB4/CCD 20-Jun-1994 RHW
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TESTB4/CCD in_frm [out_id] [area] [size,fac]
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Make a histogram of the pixel intensities and rebin the input frame
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Make a histogram of the pixel intensities and rebin the input frame
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TESTB4/CCD in_frm [out_id] [area] [size,fac]
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in_frm = input frame; no default
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out_id = output identifier for the output of the test prodedure.
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All output (i.e. frames, listings and plots) will start
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with this identifier. Default is BIAS.
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area = area which the histogram is computed; Default is whole image
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size,fact = size of smoothing box used for median filtering and
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decimation factor for frame size reduction. Default is 5,16.
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The default size 5 for the filtering implies a filtering
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over boxes of 11 by 11 pixels.
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This command is the fourth test of a series of tests bias frames: B1 to
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B5. See the command TESTBA/CCD.
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The command will first correct the frame for hot pixels and then rebin
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it. A histogram of this rebinned frame is made.
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For more details about the various combining methods, please refer
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to the CCD Chapter in Volume B of the ESO-MIDAS Users' Guide.
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The command will stored the outputs in a number of ascii and
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postscript files (preceding by the identification string out_id):\\
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`out_id'_hist.ps: postscript file with a plot of the histogram;\\
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`out_id'_rebin.bdf: cleaned and rebinned combined bias frame;\\
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`out_id'_rebin.ps: postscript file with an image of the above;\\
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TESTBA/CCD, SET/CCD, SHOW/CCD, COMBINE/CCD, AVERAGE/ROW,
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AVERAGE/COLUMN, FILTER/MEDIAN, Ch. 3 in Vol. 2 of the Users Guide.
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TESTB4/CCD BIAS BS [@900,@900:@1100,@1100]
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Run the test procedure on the frame BIAS. Use the defaults for the