[gnuastro-devel] [task #14318] ImgCrop does not create the output image when the center is blank

[Mosè Giordano]

URL:
  <http://savannah.gnu.org/task/?14318>

                 Summary: ImgCrop does not create the output image when the
center is blank
                 Project: GNU Astronomy Utilities
            Submitted by: giordano
            Submitted on: Sat 21 Jan 2017 06:42:29 PM CET
         Should Start On: Sat 21 Jan 2017 12:00:00 AM CET
   Should be Finished on: Sat 21 Jan 2017 12:00:00 AM CET
                Category: ImageCrop
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
        Percent Complete: 0%
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                  Effort: 0.00

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Details:

When an image is cropped and the center of the resulting image would have a
blank pixel, the output file is not created (unless one uses "--checkcenter=N"
with N high enough, or "--zeroisnotblank" when the original pixels are zeros).
 This is somewhat confusing at first and the output message of the program
doesn't clearly explain the reason what happened.

I see the point of not creating the file, but I'd suggest to print a warning.




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