Image processing apparatus
First Claim
1. An image processing apparatus, comprising:
- synthesis means for synthesizing image data of a plurality of images obtained by taking a same scene under different exposure conditions to generate synthesized image data of a composite image; and
image processing means for subjecting the synthesized image data by said synthesis means to dodging processing.
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Abstract
The image processing apparatus comprises a synthesis unit and a selection unit or an image processing unit or both units. The synthesis unit synthesizes image data of a plurality of images obtained by taking a same scene under different exposure conditions or image data of a plurality of optimal images selected by the selection unit to generate synthesized image data of a composite image. The selection unit selects the plurality of the optimal images for synthesis among the image data of the plurality of images described above. The image processing unit for subjecting the synthesized image data by the synthesis unit to dodging processing. The apparatus can secure a sufficient dynamic range of the image data even when the scene having a high contrast is taken by a digital camera that has a narrow photographing latitude and also output prints reproducing high-quality images.
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Citations
46 Claims
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1. An image processing apparatus, comprising:
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synthesis means for synthesizing image data of a plurality of images obtained by taking a same scene under different exposure conditions to generate synthesized image data of a composite image; and
image processing means for subjecting the synthesized image data by said synthesis means to dodging processing. - View Dependent Claims (2, 3, 4, 12, 13, 14, 15, 19)
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5. An image processing apparatus, comprising:
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selection means for selecting a plurality of optimal images for synthesis among image data of a plurality of images obtained by taking a same scene under different exposure conditions; and
synthesis means far synthesizing the image data of said plurality of the optimal images selected by said selection means to generate synthesized image data of a composite image. - View Dependent Claims (6, 7, 8, 9, 10, 11, 16, 17, 18)
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20. An image processing apparatus, comprising:
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selection means for judging a plurality of images obtained by taking a same scene under different exposure conditions among a plurality of supplied images, and for selecting a plurality of optimal images for synthesis among image data of said plurality of images judged as the same scene; and
synthesis means for synthesizing the image data of said plurality of the optimal images selected by said selection means to generate synthesized image data of a composite image.
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21. An image processing apparatus, comprising;
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acquiring means for acquiring image data of a plurality of first images to be synthesized that are obtained by taking a single scene under different exposure conditions;
synthesis means for synthesizing said image data of said plurality of first images obtained by said acquiring means to generate synthesized image data of a composite image; and
image processing means for subjecting the synthesized image data of said composite image by said synthesis means to dodging processing, wherein said synthesis means sets synthesis conditions of image synthesis using said image data of said plurality of first images, and synthesizes said image data of said plurality of first images using said set synthesis conditions. - View Dependent Claims (22, 23, 24, 25, 26)
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27. An image processing apparatus, comprising:
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acquiring means for acquiring image data of a plurality of second images obtained by taking a single scene under different exposure conditions;
selection means for selecting a plurality of optimal first images for synthesis among said image data of said plurality of second images obtained by said acquiring means; and
synthesis means for synthesizing image data of said plurality of the optimal first images selected by said selection means to generate synthesized image data of a composite image, wherein said synthesis means sets synthesis conditions of image synthesis using said image data of said plurality of first images, and synthesizes said image data of said plurality of first images using said set synthesis conditions. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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35. An image processing apparatus, comprising:
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acquiring means for acquiring image data of a plurality of first images to be synthesized that are obtained by taking a single scene under different exposure conditions;
synthesis means for synthesizing said image data of said plurality of first images obtained by said acquiring means to generate synthesized image data of a composite image; and
image processing means for subjecting the synthesized image data of said composite image by said synthesis means to dodging processing, wherein said synthesis means sets synthesis conditions of image synthesis using shutter speeds and aperture sizes of a stop of a camera at the time of taking said plurality of first images among shooting information of said plurality of first images, and synthesizes said image data of said plurality of first images using said set synthesis conditions, and wherein said synthesis means performs said image synthesis after converting said image data of said plurality of first images to subject luminance data of logarithmic scales, sets said synthesis conditions as shifting amounts of the subject luminance data of respective images from the subject luminance data of one image among said plurality of first images, as well as, determines logarithmic values of the shutter speeds and the aperture sizes of the stop when said one image and said respective images were taken respectively, calculates each first difference between each of the determined logarithmic values of the shutter speeds when said respective images were taken and each of the determined logarithmic values of the shutter speeds when said one image was taken, and each second difference between each of the determined logarithmic values of the aperture sizes of the stop when said respective images were taken and each of the determined logarithmic values of the aperture sizes of the stop when said one image was taken, and adds said each first difference and said each second difference for said respective images to calculate the shifting amounts of the respective images. - View Dependent Claims (36, 37, 38)
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39. An image processing apparatus, comprising:
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acquiring means for acquiring image data of a plurality of second images obtained by taking a single scene under different exposure conditions;
selection means for selecting a plurality of optimal first images for synthesis among said plurality of second images obtained by said acquiring means; and
synthesis means for synthesizing image data of said plurality of the optimal first images selected by said selection means to generate synthesized image data of a composite image, wherein said synthesis means sets synthesis conditions of image synthesis using shutter speeds and aperture sizes of a stop of a camera at the time of taking said plurality of first images among shooting information of said plurality of first images, and synthesizes said image data of said plurality of first images using said set synthesis conditions, and wherein said synthesis means performs said image synthesis after converting said image data of said plurality of first images to subject luminance data of logarithmic scales, sets said synthesis conditions as shifting amounts of the subject luminance data of respective images from the subject luminance data of one image among said plurality of first images, as well as, determines logarithmic values of the shutter speeds and the aperture sizes of the stop when said one image and said respective images were taken respectively, calculates each first difference between each of the determined logarithmic values of the shutter speeds when said respective images were taken and each of the determined logarithmic values of the shutter speeds when said one image was taken, and each second difference between each of the determined logarithmic values of the aperture sizes of the stop when said respective images were taken and each of the determined logarithmic values of the aperture sizes of the stop when said one image was taken, and adds said each first difference and said each second difference for said respective images to calculate the shifting amounts of the respective images. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46)
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Specification