CODE AMOUNT CONTROL DEVICE AND CODE AMOUNT CONTROL METHOD

摘要

The present invention relates to a code amount control apparatus and code amount control method that changes a code amount of an image to a predetermined value for a short processing time. A determining section (352) compares a generated code amount output from a coding section (310) with a designated code amount and determines whether the code amount of encoded data encoded by the coding section (310) is larger than the designated code amount. A linear line deciding section (354) decides a linear line (namely, linear function) of a square of the generated code amount and a reciprocal of a parameter from a predetermined fixed point, the square of the generated code amount output from the coding section (310) and the reciprocal of the parameter output from a parameter calculating section (320) on two-dimensional coordinates. A modified parameter calculating section (356) calculates a modified parameter corresponding to the designated code amount from the decided linear line (linear function).