Expand Image
The Expand Image command enlarges the image by extending the image border to a larger area. The result is the original image data Imbedded in a background of uniform intensity. This command is usually used before Imbedding images into the background.
The Expand Image command opens from the Image Window > Process > Geometry menu and button on the Main Toolbar. The "immediate" form, shown first, opens when an image or image set is displayed in the top-most window. The general form can be used to select source images from folders, windows, or by matching templates.
Expand Image Properties
Profile [|>] |
Selects the parameter profile for this command and allows you to save or work with existing presets. |
[Select] |
Opens the Select Source Images dialog to choose images from an image window, folder, files, name template, or a Mira File List. |
New Size |
Specifies the dimensions of the new image. |
Cols |
Number of columns (X dimension) in the new image). |
Rows |
Number of rows (Y dimension) in the new image). |
Position Image at |
This is the coordinate of the corner of the old image in the new background. Mira coordinates are 1-based, which means that using a value of (1,1) makes the corners exactly flush. If you check the Center check box, Mira centers the old image in the new background, ignoring the X and Y position values you specified. |
X |
X Pixel coordinate (column number) of the old image in the new image. To place the image at the X origin, set the value to 1. |
Y |
Y Pixel coordinate (row number) of the old image in the new image. To place the image at the Y origin, set the value to 1. |
Center |
Check this box to center the image in the expanded background. This option disables the X and Y properties. |
Set Value |
Check this box to set the value to assign the background outside the image data. If this box is unchecked, a value of 0 is used. |
Set Noise Sigma |
Check this box to set the sigma value for adding Gaussian random noise to the background values outside the image data. |
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