Image Arithmetic
The Image Arithmetic command performs various arithmetic operations between an image or image set and a second, or "operand" image. The first image must be displayed but the operand image may be displayed or in a file.
Open this dialog from the Process > Math menu.
Mira provides the following image arithmetic operations between pairs of images.
Operations Between Pairs of Images
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Add |
Adds the pixel values of the images. |
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Subtract |
Subtracts the second image from the first one. |
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Multiply |
Multiples the pixel values of the images. |
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Divide |
Divides the second image into the first one. The result is set to Error Value if the pixel in the second image has a value of 0.0. |
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Blend |
Blends the two images by interpolating their pixel values at each point. |
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Remainder |
Computes the remainder of dividing the second image into the first one. The result is set to Error Value if the pixel in the second image has a value of 0.0. |