An attentional portion to be corrected in gradation of an image is specified, and a gradation corrective function with respect to a density of the specified attentional portion is generated. The set of transcoders comprises n transcoders, each transcoder allowing an input compressed data signal encoded at an input bit rate to be converted into an output compressed data signal encoded at an output bit rate. Information of a second group different from the first group on the first display module and a second display module is displayed, if both the first display module and the second display module are externally exposed. Responsive to movement of the mating connector in the predetermined direction, the operated portion separates the contacting portion from the housing. The final color filter has a high resolution, is highly resistant to solvents typically used in the color filter manufacturing process, is strongly adhered to the color filter substrate, has superior optical clarity, is highly soluble in a wide range of alkali developers, and has excellent heat and UV light stability. In response to determining that the abnormal condition is present, the sniffer device collects network-level packets into a data structure.