Here are the options for Photographic Align:
Layout Options
For photographic images, there are five choices of layouts: Similarity, Affine, Homography, Planar, and Cylindrical. These are explained in detail in . Comparing these layout options to those for Photographic Montage, the Auto mode is eliminated because its effective use depends heavily the montage blending process; Planar and Cylindrical are the same; Similarity is akin to Reposition, but somewhat more complicated.
Aligned Images Crop Options
The Aligned Images Crop Options controls how the aligned images are cropped individually before they are saved. (This differs from the Final Montage Crop Option, which crops the composite image.) There are three possibilities here:
- 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 target image. Of course, the target image itself will not be cropped.
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.