| -slices | Interpret multiple 2D images as z-slices of a single 3D image |
| -images | Interpret slices of a single 3D image as 2D images |
| -add 1.4,3.6 | Add two images, scaling and shifting the second. |
| -multiply -5.1,0.5 | Multiply two images, scaling and shifting the second. |
| -divide -1.8,-2.4 | Divide the first image by the second, scaling and shifting the second. |
| -largest 3.1,0.5 | Maximum of two images, scaling and shifting the second. |
| -smallest 3.1,0.5 | Minimum of two images, scaling and shifting the second. |
| -truncate -0.3,10 | Truncate result to min and max. |
| -variance 0.15,-0.5 | Scale based on variance ratio, optionally shifting the second. |
| -fit 6 | Linear fit, excluding a percentage of voxels as outliers, output difference. |
| -coefficient | Calculates correlation coefficients between two sets of images. |
| -correlate corr.img | Correlate two images and generate a correlation image. |
| -Histomatch 20 | Match histogram of image 2 to image 1, output modified image 2. |
| -blend 7 | Blend from image 1 to image 2, output a new multi-image file. |
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