Apple Macintosh PhotoFlash - Manual (Page 32)

For example, if you use the Similar Images command to look for pictures
similar to a picture of a beach, PhotoFlash will probably identify pictures of
beaches that contain similar colors. However, if you look for pictures similar
to a picture of a cat, PhotoFlash probably won’t identify other pictures of cats,
because the colors in pictures of cats vary a lot more than the colors in
pictures of beaches.
To search for images by their similarity to another image in a catalog, make
sure the catalogs you want to search are open, then follow these steps:
1 Select the thumbnail for an image that resembles the image you want to find.
You can’t search for similar images unless you have a single thumbnail
selected.
2 Choose For Similar Images from the Search menu.
The Search for Similar Images dialog box appears.
3 Select the search options you want.
The default settings cause PhotoFlash to search only one catalog and to
highlight the selected images in that catalog. It’s usually a good idea to select
the Put Results in New Catalog option, because PhotoFlash sorts the
thumbnails in the new catalog in order of their similarity to the sketch.
21 Using Catalogs
Click here to request
a search of all open
catalogs.
Click here to request a
new catalog that
contains copies of the
matching thumbnails.