Communication of compressed digital images with restricted access and server/client hand-offs

An article of manufacture comprising one or more recordable media having instructions stored thereon which, when executed by a system, cause the system to:

• receive a first request for a first set of image data corresponding to an image;
• respond to the first request with the first set of image data;
• receive a second request for a second set of image data corresponding to the image;
• determine that the second set of image data includes restricted data;
• send a prompt for authentication;
• receive the second request along with authentication information;
• and
• determine again that the second request is for restricted data;
• check the authentication information;
• and
• provide the second set of image data if the authentication information is correct.

An apparatus comprising:

• means for receiving a first request for a first set of image data corresponding to an image;
• means for responding to the first request with the first set of image data;
• means for receiving a second request for a second set of image data corresponding to the image;
• means for determining that the second set of image data includes restricted data;
• means for sending a prompt for authentication;
• means for receiving the second request along with authentication information;
• and
• means for determining again that the second request is for restricted data;
• means for checking the authentication information;
• and
• means for providing the second set of image data if the authentication information is correct.

A method comprising:

• a first server operating within a JPIP session with a client, including receiving a first request from the client for a sub-image of an image;
• generating a response containing data needed to create the sub-image;
• receiving a second request from the client for a different portion of the image;
• and
• the first server redirecting the client to a second server to obtain the different portion of the image.

An article of manufacture comprising one or more recordable media having instructions stored thereon which, when executed by a system, cause the system to:

• receive a first request from the client during a JPIP session for a sub-image of an image;
• generate a response containing data needed to create the sub-image;
• receive a second request from the client for a different portion of the image;
• and
• redirect the client to a second server to obtain the different portion of the image.

An apparatus comprising:

• means for receiving a first request from the client during a JPIP session for a sub-image of an image;
• means for generating a response containing data needed to create the sub-image;
• means for receiving a second request from the client for a different portion of the image;
• and
• means for redirecting the client to a second server to obtain the different portion of the image.

A method comprising:

• a first client generating a JPIP request to a server;
• the first client receiving data in response to the JPIP request;
• and
• the first client directing a second client to use data received by the first client and and make one or more additional requests to the server.

An article of manufacture comprising one or more recordable media having instructions stored thereon which, when executed by a system,. cause the system to:

• generate a JPIP request to a server;
• receive data in response to the JPIP request;
• and
• direct a second client to use data received by the first client and and make one or more additional requests to the server.

A method comprising:

• receiving a request from a client;
• determining that the request is for a directory;
• and
• generating at least one response with information regarding the directory.