Abstract: The invention relates to a chromatic aberration correction apparatus. A judgment unit judges whether a selected pixel of interest is a white overexposure pixel or not on the basis of white overexposure pixel distribution information that is held in a white overexposure distribution information memory. A white overexposure pixel judgment is made for each of pixels that make up an image. A reader reads, for each selected pixel of interest that is judged as a white overexposure pixel by the judgment unit, chromatic aberration amount distribution information for a certain area that is determined on the basis of the selected pixel of interest out of a chromatic aberration distribution information memory. An adder adds each chromatic aberration amount contained in the chromatic aberration amount distribution information that is read by the reader to a value of the corresponding position in the storage area of a chromatic aberration amount memory.

Abstract: The invention relates to a chromatic aberration correction apparatus. A judgment unit judges whether a selected pixel of interest is a white overexposure pixel or not on the basis of white overexposure pixel distribution information that is held in a white overexposure distribution information memory. A white overexposure pixel judgment is made for each of pixels that make up an image. A reader reads, for each selected pixel of interest that is judged as a white overexposure pixel by the judgment unit, chromatic aberration amount distribution information for a certain area that is determined on the basis of the selected pixel of interest out of a chromatic aberration distribution information memory. An adder adds each chromatic aberration amount contained in the chromatic aberration amount distribution information that is read by the reader to a value of the corresponding position in the storage area of a chromatic aberration amount memory.

Abstract: At S1, an initial value of a common scale factor is calculated. Thereafter, at S11, the initial value is corrected. A value of which the difference between the initial value and the final value of the preceding frame is added to the initial value of the current frame is a corrected initial value of the common scale factor. Scaling is performed with the corrected initial value. At S3, if it has been determined that quantizing noise of each sub band do not exceed a permissible noise, the flow advances to S5. At S5, variable length encoding is performed. At S6, it is determined whether or not the encoded code amount exceeds a target code amount. If it has been determined that the code amount exceed the target code amount, the flow advances to S7. At S7, the common scale factor is changed such that the quantizing step size becomes large and the quantizing process is restored. Thereafter, the process is repeated until it has been determined that the code amount do not exceed the target code amount.