Navigation and Tool Bars

Main Screen -> -> -> -> -> Image Set
Overview   top
Image Sets are a list of images. People's faces are best, since our brains are exceptionally well tuned to recognize faces. However, automated face recognition is becoming more and more sophisticated and widespread, so other kinds of images may be safer to use. Image sets are easier (and more fun) to use than text sets, but it takes more effort to create them. They also take up a lot more space.

You can use pets, people, celebrities, family, bands, record covers, buildings, book covers, plants... the images can be anything at all, as long as you can easily categorize them into known, unknown and coercion.

Note that images should not rely on text for their meaning; they may be flipped horizontally or otherwise transformed for display. They should also not rely on too much detail - they may be fairly small on an entry screen. The main content of the image should be in the center. Content at the edges may be cropped away for display. Image items are square.

Navigation and Tool Bars   top
: tap this when you are done with the set. You will be asked to save or delete the item set.

: show the image set options.

0/0, : see User Interface: Item Selection.

: select a single image by tapping on it. You can then edit it.

: import externally prepared image files.

: add other image sets. You can combine multiple image sets into one.

: add images from your collection of documents.

Content   top
Tap on a single image to select it, then tap to edit. See Image Editing: Image Set Editing for more on image editing.

When you are just about ready you should carefully look at each and every image to make sure it solidly and easily falls into one of the three categories.

When in doubt throw it out :-)

Options   top
Start Harvest: if you are connected to the internet, you can harvest actor and actress images from the internet movie data base (IMDB). Tap this command again to stop the harvesting. The harvesting asks for random images and may take a while. This is one way to easily get hold of unknown images.

Another way would be to get (or take yourself) images of crowds and then split them into individual people. You can also use your favorite search engine to look for images of groups (crowds are too indistinct.) Splitting images can be done quite easily with the built-in image editor. Just position different portions of an image in the crop area and save a copy of each portion.

Images will be for your personal non-commercial, non-public use, so there should not be any legal problems; however, please note that you assume all risk. Another consideration is that you do not want the same images as other users of CerebraLock. This is a danger if you pick obvious images which are publicly available.

Import   top
It is (still) easier to work on a laptop or desktop computer. You can prepare your image set on another machine. Create a folder with images in them. They should have extension .png or .jpg. Images should not be too large (they will end up being scaled to 128 x 128), and should not have any transparency.

Since you may have a lot of images, it is advantageous to make a zip archive out of the folder by (on a Mac) control-clicking on it and choosing 'Compress'. A file with extension .zip will be created. However, individual images can be added the same way. Copy the archive (or images) to your device's Documents folder with iTunes (Public Folders and File Import: Importing Documents with iTunes), or e-mail them to yourself (Public Folders and File Import: Importing Documents from Other Apps). Note that e-mailing may not be secure!

Whichever method you use, keep track of where you leave copies of your images. Delete them when you no longer need them. They are the raw material for your passwords and should not fall into the wrong hands!

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Sunday, December 22, 2013