초록 ▼

A photographing apparatus and method prevent a resolution of a peripheral portion of an image from being degraded with a simple structure. These employ an in-focus state detector for detecting evaluation values for auto in-focus operation representing an in-focus state of an image from a first in-fo

A photographing apparatus and method prevent a resolution of a peripheral portion of an image from being degraded with a simple structure. These employ an in-focus state detector for detecting evaluation values for auto in-focus operation representing an in-focus state of an image from a first in-focus state detection region disposed on a center portion of the image, and at least one second in-focus state detection region disposed on a peripheral portion of the image, a flat subject determiner that determines whether a subject is flat based on the detection result of the evaluation values for auto in-focus operation, a flat subject focusing position calculator that calculates a final focusing position based on the evaluation values when the subject is determined as being flat, and a three-dimensional subject focusing position calculator that calculates a final focusing position based on the evaluation value when the subject is not flat.

대표청구항 ▼

What is claimed is: 1. A photographing apparatus comprising: an in-focus state detector for detecting evaluation values for auto in-focus operation representing an in-focus state of a photographing image from a first in-focus state detection region disposed on a center portion of the photographing

What is claimed is: 1. A photographing apparatus comprising: an in-focus state detector for detecting evaluation values for auto in-focus operation representing an in-focus state of a photographing image from a first in-focus state detection region disposed on a center portion of the photographing image, and at least one second in-focus state detection region disposed on a peripheral portion of the photographing image; a flat subject determiner that determines whether a subject to be photographed is a flat subject based on the detection result of the evaluation values for auto in-focus operation; a flat subject focusing position calculator that calculates a final focusing position based on the evaluation values for auto in-focus operation obtained from the first and second in-focus detection regions, when the subject is determined as a flat subject by the flat subject determiner; and a three-dimensional subject focusing position calculator that calculates a final focusing position based on the evaluation value for auto in-focus operation obtained from the first detection region, when it is determined that the subject is not a flat subject by the flat subject determiner. 2. The photographing apparatus of claim 1, wherein the flat subject determiner determines whether the subject is a flat subject based on a difference between a focusing position where the evaluation value for auto in-focus operation of the first in-focus detection region is a maximum and a focusing position where the evaluation value for auto in-focus operation of the second in-focus detection region is a maximum. 3. The photographing apparatus of claim 1, further comprising: a display unit displaying the photographing image, wherein the first in-focus detection region is displayed on the display unit with the photographing image, and the second in-focus detection region is not displayed on the display unit. 4. The photographing apparatus of claim 1, further comprising: a diaphragm value controller that changes a diaphragm value based on the determination result of the flat subject determiner. 5. The photographing apparatus of claim 1, further comprising: a contour emphasizing controller that changes a process of emphasizing a contour of the image based on the determination result of the flat subject determiner. 6. The photographing apparatus of claim 1, further comprising: a posture determiner that determines a posture of the photographing apparatus based on the evaluation values for auto in-focus operation of the first and second in-focus detection regions. 7. The photographing apparatus of claim 1, wherein: the in-focus state detector detects evaluation values for auto in-focus operation representing an in-focus state of a photographing image from a first in-focus state detection region disposed on a center portion of the photographing image, and a plurality of said second in-focus state detection regions disposed on a peripheral portion of the photographing image. 8. A photographing method comprising: detecting evaluation values for auto in-focus operation, which represent in-focus states, from a first in-focus detection region on a center portion of a photographing image and at least one second in-focus detection region on a peripheral portion of the photographing image; determining whether a subject to be photographed is a flat subject based on the result of detecting the evaluation values for auto in-focus operation from the first and second in-focus detection regions; calculating a final focusing position based on the evaluation values for auto in-focus operation from the first and second in-focus detection regions if the subject is determined as a flat subject; and calculating a final focusing position based on the evaluation value for the auto in-focus operation obtained from the first in-focus detection region if the subject is determined to not be a flat subject. 9. The photographing method of claim 8, wherein in determining whether the subject is a flat subject, the flat subject is determined based on a difference between a focusing position where the evaluation value for auto in-focus operation of the first in-focus detection region is a maximum and a focusing position where the evaluation value for auto in-focus operation of the second in-focus detection region is a maximum. 10. The photographing method of claim 8, further comprising: displaying the photographing image, wherein the first in-focus detection region is displayed with the photographing image, and the second in-focus detection region is not displayed. 11. The photographing method of claim 8, wherein in determining whether the subject is a flat subject, a diaphragm value is changed based on the result of determining whether the subject is a flat subject. 12. The photographing method of claim 8, wherein in determining whether the subject is a flat subject, a process of emphasizing a contour of the image is changed based on the result of determining whether the subject is a flat subject. 13. The photographing method of claim 8, further comprising: determining a posture of the photographing apparatus based on the evaluation values for auto in-focus operation of the first and second in-focus detection regions. 14. The photographing method of claim 8, wherein: the detecting detects evaluation values for auto in-focus operation representing an in-focus state of a photographing image from a first in-focus state detection region disposed on a center portion of the photographing image, and a plurality of said second in-focus state detection regions disposed on a peripheral portion of the photographing image. 15. A computer readable medium of instructions for controlling a photographing apparatus, comprising: a first set of instructions for controlling the photographing apparatus to detect evaluation values for auto in-focus operation, which represent in-focus states, from a first in-focus detection region on a center portion of a photographing image and at least one second in-focus detection region on a peripheral portion of the photographing image; a second set of instructions for controlling the photographing apparatus to determine whether a subject to be photographed is a flat subject based on the result of detecting the evaluation values for auto in-focus operation from the first and second in-focus detection regions; a third set of instructions for controlling the photographing apparatus to calculate a final focusing position based on the evaluation values for auto in-focus operation from the first and second in-focus detection regions if the subject is determined as a flat subject; and a fourth set of instructions for controlling the photographing apparatus to calculate a final focusing position based on the evaluation value for the auto in-focus operation obtained from the first in-focus detection region if the subject is determined to not be a flat subject. 16. The computer readable medium of instructions of claim 15, wherein the second set of instructions controls the photographing apparatus to determine whether the subject is a flat subject based on a difference between a focusing position where the evaluation value for auto in-focus operation of the first in-focus detection region is a maximum and a focusing position where the evaluation value for auto in-focus operation of the second in-focus detection region is a maximum. 17. The computer readable medium of instructions of claim 15, further comprising: a fifth set of instructions for controlling the photographing apparatus to display the photographing image, wherein the first in-focus detection region is displayed with the photographing image, and the second in-focus detection region is not displayed. 18. The computer readable medium of instructions of claim 15, wherein the second set of instructions controls the photographing apparatus to determine whether the subject is a flat subject and change a diaphragm value based on the result of determining whether the subject is a flat subject. 19. The computer readable medium of instructions of claim 15, wherein the second set of instructions controls the photographing apparatus to determine whether the subject is a flat subject by changing a process of emphasizing a contour of the image based on the result of determining whether the subject is a flat subject. 20. The computer readable medium of instructions of claim 15, further comprising: a sixth set of instructions for determining a posture of the photographing apparatus based on the evaluation values for auto in-focus operation of the first and second in-focus detection regions.