1. A method for detecting a fire flame using fuzzy finite automata, the method comprising: (1) acquiring an image required for the detection of fire-flame; (2) dividing the image into a number of blocks; (3) extracting a fire-flame candidate block using a brightness distortion of a pixel in the block; (4) detecting a fire-flame candidate region from the fire-flame block using a color probability model; and (5) determining whether the fire-flame candidate region corresponds to a fire-flame via fuzzy finite automata.