Multispectral camera

A camera comprising:

• two or more color elements, each color element including a lens, a color filter, a filter data interface, and an image sensor;
• a security processor including non-volatile memory (NVM) for externally inaccessible storing of a private key and firmware, and for storing at least one index;
• a positioning receiver;
• and
• a transceiver;
• wherein the firmware includes instructions which, when executed, perform the following actions:
• receiving and decrypting the index in the security processor;
• storing the decrypted index with limited external access in the NVM;
• obtaining a time and a date from the positioning receiver and determining if the time and the date meet a license term included in the index;
• determining if installed color filters meet requirements included in the index;
• upon determining that the time and the date meet the license term and the installed color filters meet the filter requirements included in the index, allowing usage of the index;
• upon determining that the time and/or the date do not meet the license term, and/or the installed color filters do not meet the filter requirements included in the index, blocking usage of the index;
• combining images obtained from the image sensors in the two or more color elements;
• calculating an index value for pixels in a combined image;
• determining if an alert must be issued;
• and
• upon determining that the alert must be issued, issuing the alert to a user via the transceiver when a connection is available.