Here are the options for Other Modalities Align:
Layout Options
There are five choices of layouts: Similarity, Affine, Homography, Planar, and Cylindrical. Planar and Cylindrical are the same as for Photographic Montaging, Similarity is akin to Reposition, but somewhat more complicated. All five are explained in detail in .
Aligned Images Crop Options
The Aligned Images Crop Options controls how the aligned images are cropped individually before they are saved. There are three possibilities:
- If the user clicks None then no cropping is applied.
- If the user clicks Intersection then the images are cropped to their intersection. If the intersection is empty, then no cropping is applied.
- If the user clicks Target, then after the Align Images button is pressed to start the alignment process, a new window pops up for the user to choose one of the selected images as the "target". The alignment process then continues and after it is done, the aligned images are cropped, restricting them to the area of the (aligned) target image. Of course, the target image itself will not be cropped.
Apply Masking
When this is selected, i2k Retina tries to find a convex border of pixels around the true image contents. This border region can be either bright or dark. The region is eliminated from consideration during the registration process.
Aggressive Registration
Clicking this button tells i2k Retina to be more aggressive than usual in trying to align each pair of images. This allows it to handle tougher cases while taking a bit more computation time. On rare occasions this leads i2k Retina to make mistakes, so this should be used only when ordinary registration fails and when the user is certain the images should be aligned.