| 摘要 |
<p>A code amount control device and a code amount control method for modifying an image code mount into a predetermined value within a short processing time. A judgment unit (352) compares a generated code amount output from a coding unit (310) to a specified code amount and judges whether the code amount of the coded data coded by the coding unit (310) is greater than the specified code amount. A straight line decision unit (354) uses a predetermined fixed point, a square of generated code amount output from the coding unit (310), and a reciprocal value of parameter data output from a parameter calculation unit (320), so as to decide a straight line (that is, a linear function) concerning the square of the generated coded amount and the reciprocal value of the parameter on a two-dimensional coordinate system. A correction parameter calculation unit (356) calculates a correction parameter corresponding to the specified code amount from the decided straight line (linear function).</p> |
