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Diffstat (limited to 'noao/imred/crutil/src/cosmicrays.key')
-rw-r--r-- | noao/imred/crutil/src/cosmicrays.key | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/noao/imred/crutil/src/cosmicrays.key b/noao/imred/crutil/src/cosmicrays.key new file mode 100644 index 00000000..beac2835 --- /dev/null +++ b/noao/imred/crutil/src/cosmicrays.key @@ -0,0 +1,43 @@ + COSMIC RAY DETECTION AND REPLACEMENT + + +INTERACTIVE IMAGE CURSOR COMMANDS + +When using the image display cursor to define a list of training objects +the following keystrokes may be given. + +? Help +c Identify the object as a cosmic ray +s Identify the object as a star +g Switch to the graphics plot +q Quit and continue with the cleaning + +There are no colon commands. + + +INTERACTIVE GRAPHICS CURSOR COMMANDS + + The graph shows the ratio of the mean background subtracted flux within the +detection window (excluding the candidate cosmic ray and the second brightest +pixel) to the flux of the candidate cosmic ray pixel as a function of the +mean flux. Both coordinates have been multiplied by 100 so the ratio is in +precent. The peaks of extended objects have high flux ratios while true +cosmic rays have low ratios. The main purpose of this step is to set the +flux ratio threshold for discriminating stars and galaxies. The cursor +keys are: + +? Help +a Toggle between showing all objects and only the training objects +d Mark candidate for replacement (applys to '+' points) +e Mark candidates in a region for replacement (applys to '+' points) +q Quit. Returns to training or to replace the selected pixels +r Redraw the graph +s Make a surface plot for the candidate nearest the cursor +t Set the flux ratio threshold at the y cursor position +u Mark candidate to not be replaced (applys to 'x' points) +v Mark candidates in a region to not be replaced (applys to 'x' points) +w Adjust the graph window (see GTOOLS) +<space> Print the pixel coordinates for a candidate + +There are no colon commands except those for the windowing options (type +:\help or see GTOOLS). |