Image Analysis with CASA - ESO

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Defining box/region in the viewer Draw a polygon Close it Doubleclick inside to confirm Tools>Region in file>Save (Show/Hide) 10
Defining box / region – Command line box = 'blcx, blcy, trcx, trcy' A region can be defined from a file, e.g. as saved <strong>with</strong> the Viewer: region = 'definedregion.rgn' or <strong>with</strong> predefined shapes: region = circle [center,radius] annulus [center, inner & outer radii] box, centerbox, rotbox [corner position; center, side lengths; center, side lengths, position angle]' ellipse [center, major & minor axes, position angle] polygon [vertices positions] Examples: box= '0,0,50,50' region = 'circle[ [18h12m24s, 23d11m00s], 2.3arcsec]' region = 'rotbox[ [18h12m24s, 23d11m00s], [10pix,5pix], 45deg]' 11
Page 1 and 2: Image Analysis with CASA Sebastien
Page 3 and 4: View images Extract information fro
Page 5 and 6: Working with images: General tasks
Page 7 and 8: Viewer CASA> viewer and then use th
Page 9: Header hdkey for reference beammaj
Page 13 and 14: Image Statistics imstat : calculate
Page 15 and 16: Mathematical operations on images i
Page 17 and 18: Smooth images imsmooth - Image conv
Page 19 and 20: If only 1 Gaussian component (defau
Page 21 and 22: Working with spectral data cube
Page 23 and 24: Extract a spectrum - Script mode Us
Page 25 and 26: Moments Images Sometimes, informati
Page 27 and 28: Spectral Lines Search 1) Use SPLATA
Page 29 and 30: ToolKit For (very?) advanced users,

Image Analysis with CASA - ESO

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