Electronic image sensing apparatus

An electronic image sensing apparatus for photoeletrically converting an optical image in an image sensing unit, processing the resultant analog image sensing data, and recording, displaying, outputting, or externally outputting the processed image sensing data, comprising:

• an analog semiconductor memory for temporarily storing the image sensing data from said image sensing unit in the form of an analog value;
• a processor for generating adjustment information for adjusting a luminance distribution of the entire image sensing data on the basis of luminance information of the image sensing data read out from said analog semiconductor memory;
• and
• a luminance distribution adjustment unit for receiving the analog image sensing data read out from said analog semiconductor memory, adjusting an amplitude of the image sensing data on the basis of an amplitude conversion characteristic corresponding to the adjustment information generated by said processor, and outputting, as an analog value, the image sensing data whose luminance distribution is adjusted.

An electronic image sensing apparatus for photoeletrically converting an optical image in an image sensing unit, processing the resultant analog image sensing data, and recording, displaying, outputting, or externally outputting the processed image sensing data, comprising:

• an analog semiconductor memory for temporarily storing the image sensing data from said image sensing unit in the form of an analog value;
• a processor for generating adjustment information for adjusting a luminance distribution of the entire image sensing data on the basis of luminance information of the image sensing data read out from said analog semiconductor memory;
• and
• a luminance distribution adjustment unit for receiving the analog image sensing data read out from said analog semiconductor memory, adjusting an amplitude of the image sensing data by digitizing the image sensing data on the basis of an A/D conversion characteristic corresponding to the adjustment information generated by said processor, and outputting, as a digital value, the image sensing data whose luminance distribution is adjusted.

An electronic image sensing apparatus for photoeletrically converting an optical image in an image sensing unit, processing the resultant analog image sensing data, and recording, displaying, outputting, or externally outputting the processed image sensing data, comprising:

• an analog semiconductor memory for temporarily storing the image sensing data from said image sensing unit in the form of an analog value;
• an A/D converter for A/D-converting the analog image sensing data from said analog semiconductor memory with high precision and outputting the converted data as a digital value;
• and
• a processor for generating adjustment information for adjusting a luminance distribution of the entire image sensing data on the basis of luminance information of the digital image sensing data output from said A/D converter, adjusting an amplitude of the image sensing data on the basis of an amplitude conversion characteristic corresponding to the adjustment information, and outputting, as a digital value, the image sensing data whose luminance distribution is adjusted.