JP2001078067A5 - - Google Patents

Claims (13)

In an electronic camera that records image data obtained by photographing a subject,
Imaging means for imaging a subject to acquire image data of a wide wide dynamic range than the dynamic range that is required at the time of re-production or printing,
Recording means for recording information indicating that the image data is image data of the wide dynamic range together with the image data acquired by the imaging means;
An electronic camera characterized by comprising: The imaging means, the electronic camera according to claim 1, characterized in that the imaging two times or more and 6 times or less of wide dynamic range of the dynamic range that is required at the time of the reproduction or printing.   The electronic camera according to claim 1, wherein the image pickup unit picks up an image with an exposure value lower than a normal exposure value at which a desired reproduction or print can be obtained. Before type recording means, electronic camera according to any one of claims 1 to 3, characterized in that the information indicating the maximum reflectance is set in the camera further records.   5. The recording unit according to claim 1, wherein the recording unit converts the image data acquired by the imaging unit with a predetermined function, records the converted image data, and further records information on the function. An electronic camera according to any one of the above. Said recording means, represents the relationship between the digital values to be recorded with the image data by a linear function, at least first coefficient of the linear function, according to claim 5, characterized in that the record as the information of the function Electronic camera. Said recording means, represents the relationship between the digital values to be recorded with the image data by a logarithmic function, the bottom number of logarithmic function, a least one of the coefficients of the first coefficient or zero order coefficient, wherein the function The electronic camera according to claim 5 , wherein the electronic camera is recorded as information . A normal imaging mode for imaging a subject to acquire image data of the dynamic range that is required at the time of re-production or printing, wide dynamic range imaging to image a subject to acquire image data of the wide dynamic range electronic camera according to any one of claims 1 to 7, further comprising a mode switching means for switching between modes. 9. The electronic camera according to claim 8, wherein the recording unit records an image file of the image data acquired by the imaging unit in a directory or folder corresponding to the shooting mode switched by the mode switching unit. . In an electronic camera that records image data obtained by photographing a subject,
A normal imaging mode for imaging a subject so as to acquire dynamic range image data required during reproduction or printing, and a wide dynamic range imaging mode for imaging a subject so as to acquire the wide dynamic range image data Imaging means for imaging a subject in accordance with at least one of the normal imaging mode and the wide dynamic range imaging mode,
  Recording means for recording an image file of image data acquired by the imaging means in a directory or folder corresponding to the shooting mode;
  An electronic camera characterized by comprising:   11. The electronic camera according to claim 10, further comprising mode switching means for switching between the normal imaging mode and the wide dynamic range imaging mode.   The imaging means captures an image with a normal exposure value obtained by performing normal photometry when capturing an image in the normal image capturing mode, and performs normal metering when capturing an image in the wide dynamic range image capturing mode. 12. The electronic camera according to claim 10, wherein an image is taken with an underexposure value calculated based on the obtained normal exposure value.   The recording means creates normal image data having a dynamic range required at the time of reproduction or printing from image data having a wide dynamic range acquired by the imaging means, and the normal data simultaneously with the image data having a wide dynamic range. The electronic camera according to claim 1, wherein the image data is recorded.