Image-related methods and arrangements

A method comprising:

• receiving first imagery captured by a smartphone camera from a printed page of a magazine, in which pages in the magazine include a page order, and presenting the first imagery on a screen of the smartphone;
• providing the first imagery to a processor to produce scale invariant feature data therefrom;
• receiving second imagery, identified through use of said scale invariant feature data, the second imagery also corresponding to said printed page but being sourced from a source different than the smartphone camera;
• presenting, on the screen of the smartphone, the second imagery, the second imagery replacing the first imagery on the smartphone screen;
• receiving user input via a touch screen of the smartphone;
• and
• as a consequence of said user input, presenting one or more additional images depicting one or more additional parts of the magazine on the smartphone screen, in which at least one of the one or more additional parts of the magazine is later than the printed page but is not immediately following the printed page in the page order, the additional images being sourced from a source different than the smartphone camera, said additional image(s) forming part of a scrollable slideshow of plural images, through which the user can navigate by swiping the screen of the smartphone.

A method comprising:

• receiving first imagery captured by a smartphone camera from a printed page of a plural-page publication, and presenting the first imagery on a screen of the smartphone;
• providing the first imagery to a processor to produce scale invariant feature data therefrom;
• receiving second imagery, identified through use of said scale invariant feature data, the second imagery also corresponding to said printed page but being sourced from a source different than the smartphone camera;
• presenting, on the screen of the smartphone, the second imagery, the second imagery replacing the first imagery on the smartphone screen;
• receiving first user input via a touch screen of the smartphone;
• and
• as a consequence of said first user input, sending a uniform resource locator to a social network service, the uniform resource locator pointing to information corresponding to the printed page, the sending thereby prompting the social network service to post information corresponding to the printed page to a social network service account of the user, for viewing by others;
• receiving second user input via the touch screen of the smartphone;
• as a consequence of said second user input, initiating a process to allow the user to follow a social network service account of a party affiliated with the printed page;
• receiving third user input via the touch screen of the smartphone;
• and
• as a consequence of said third user input, initiating a process to allow the user to subscribe to the plural-page publication.

A method comprising:

• receiving first imagery captured by a smartphone camera from a printed page of a plural-page publication, and presenting the first imagery on a screen of the smartphone;
• providing the first imagery to a processor to produce image fingerprint data therefrom, the image fingerprint data being based on features that include human visible features of the first imagery;
• receiving second imagery, identified through use of said image fingerprint data, the second imagery corresponding to said printed page but being sourced from a source different than the smartphone camera, and receiving a markup language template, identified through use of said image fingerprint data, the markup language template defining a plurality of user input buttons, in which attribution information is included with the markup language template, the attribution information being associated with a third-party relative to a publisher of the plural-page publication;
• presenting, on the screen of the smartphone, the second imagery, the second imagery replacing the first imagery on the smartphone screen;
• presenting, on the screen of the smartphone, the markup language template overlaid on second imagery;
• receiving user input related to the second imagery via one of the user input buttons;
• and
• initiating a process to prompt a social network service to post information to a social network service account of a user, in which posted information corresponds to the printed page and to the attribution information.