Examples

(1) list mode: prints out a list of the internal mask(s) that exist in mymask.im to the log

 

(2) copy mode: Regrid a Boolean (True/False) mask from one coordinate system to another and save as Boolean mask in the output image.   

 

(3) copy mode: Same as (2), but save as integer (one/zero) mask in the output image.

mask0 is translated so that pixels in oldmask.im that appears as 'masked' in the viewer or has the pixel mask value = False when extracted in imval, are to have pixel value of 1 in the output image, newmask.im.

 

(4) copy mode: Convert a Boolean mask to an integer mask in the same image

 

(5) copy mode: Convert an integer mask to a Boolean mask in the same image

 

(6) copy mode: Copy a CRTF mask defined in mybox.txt to a Boolean mask in a new image

The pixel values of image1.im will be copied to image2.im and the region outside mybox.txt will be masked.

 

(7) copy mode: Apply a region defined in a CRTF file to mask part of an image

The region is copied as a Boolean mask (mask0) inside the image, image1.im. The region outside myregion.crtf will be masked.

 

(8) copy mode: Merge integer and Boolean masks, using the input coordinate-sys of inpimage and saving in a new output file. Remember, if the image specified in output already exist and has a different coordinate system from inpimage, the mask will be regridded to it. All masks to be merged are specified in a list in inpmask.

The name of internal masks must be given in the format, 'parent_image_name:internal_mask_name', as shown the example below.

In the example below, image1.im (the integer mask), the internal masks, mask0 from image1.im and mask1 from image2.im, and a region (on image1.im as defined in inpimage) are combined. The output, newmask.im is a new mask name which has not yet exist so image specified in inpimage, image1.im's coordinates are used as a target image coordinates. If image1.im and image2.im has different coordinates, image2.im:mask1 is regridded before it is combined to the other two masks.

 

(9) expand mode: Expand an integer mask from continuum imaging to use as an input mask image for spectral line imaging. Use an existing spectral line clean image as a template by specified in inpimage. The inpfreqs is left out as it uses a default (=[], means all channels).

 

(10) expand mode: Expand a Boolean mask from one range of channels to another range in the same image.

 

(11) expand mode: Expand a Boolean mask from a range of channels in the input image to another range of channels in a different image with a different spectral-coordinate system. Save the mask as ones/zeros so that it can be used as an input mask in the clean task. As the inpimage is used as a template for the CoordinateSystem of the output cube, it is a prerequisite to have the cube image (a dirty image, etc). In this particular example, it is assumed that bigmask.im is a working copy made from the cube image of a previous clean execution. It is used as an input template and the resultant mask is overwritten to the same image.

Specify the infreqs and outfreqs in frequency (assuming here bigmask.im has frequencies in ascending order),

or to specify the ranges in velocities,

 

(12) delete mode: Delete an internal mask from an image.

 

(13) setdefaultmask mode: Set an internal mask as a default internal mask.