FITS Image Orientation
FITS format images are
conventionally displayed with the row number
increasing upward. If your FITS format image was saved from the
camera upside down, with row number increasing downward, then it
can be displayed correctly by setting a program option. Before
opening an upside-down FITS image, check the Flip FITS Images option in the Open dialog
options or in the
Other page of the General Properties.
The comparison below shows row number increasing
upward and downward. In both cases, Mira measures the same row
position and calibrated world coordinate for a given object in the
image.
Conventional FITS Image Orientation
In the conventional display orientation, row number
increases upward.
Unconventional FITS Image Orientation
In the unconventional display orientation, as shown
below, row number increases downward.
Related Topics
Image Display Orientation
Image Coordinate System
Pixel Coordinate Definition
Mira Pro x64 User's Guide, Copyright Ⓒ 2023 Mirametrics, Inc. All
Rights Reserved.
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