| 摘要 |
PROBLEM TO BE SOLVED: To attain a focusing operation with high precision at high speed by detecting a photographing mode which is selected by a photographer at the time of one-shot AF operation and changing a scanning range of a restoring filter in accordance with the set photographing mode. SOLUTION: An RGB digital color signal obtained from CCD 31 through an A/D converter 33 is inputted to an IPP part 4 for executing an image signal processing. The signal is converted into a luminance signal by a luminance value generating part 43 in the IPP part 4 and, then, it is converted from a space component into a frequency component by an FFT(IFFT) arithmetic part 44. A filtering part 45 executes a restoring processing against the signal which is converted into the frequency component based on data (the restoring filter of one) which is read from restoring filter data ROM 46. The filtering- processed signal is outputted to a high frequency component integrater 47 and also outputted to the FFT(IFFT) arithmetic part 44. |
