Abstract: An imaging device includes a photographing device configured to photograph an object and generate an image signal, a gain storage register configured to store a gain determined for the photographing device, a gain adjustment unit configured to adjust the image signal using the gain, and a noise reduction unit configured to reduce noise of the image signal using a noise filter selected based on the gain.

Abstract: Provided is a method of controlling a digital image processing apparatus for detecting a face from continuously input images, the method comprising operations (a) to (c). In (a), if a face is detected, image information of a body area is stored. In (b), if the face is not detected, a body having the image information stored in (a) is detected. In (c), if a current body is detected after a previous body was detected in (b), an image characteristic of the previously detected body is compared to an image characteristic of the currently detected body, and a movement state of the face is determined according to the comparison result.

Abstract: A photographing apparatus may include an image pickup device which captures an image and converts the captured image into an electric image signal. A luminance detector may calculate a plurality of luminance evaluation values corresponding to a plurality of metering modes using light measurement areas of the image of the electric image signal. The light measurement areas corresponding to each of the plurality of metering modes may be different from each other. An exposure value calculator may calculate an automatic exposure value based on the luminance evaluation value corresponding to each of the plurality of metering modes. The apparatus may also include a photographing controller which performs photographing in a plurality of times corresponding to the metering modes by operating the image pickup device using the automatic exposure values to capture a plurality of photographed images. A display unit may display the plurality of photographed images.

Abstract: A photographing apparatus may include an image pickup device which captures an image and converts the captured image into an electric image signal. A luminance detector may calculate a plurality of luminance evaluation values corresponding to a plurality of metering modes using light measurement areas of the image of the electric image signal. The light measurement areas corresponding to each of the plurality of metering modes may be different from each other. An exposure value calculator may calculate an automatic exposure value based on the luminance evaluation value corresponding to each of the plurality of metering modes. The apparatus may also include a photographing controller which performs photographing in a plurality of times corresponding to the metering modes by operating the image pickup device using the automatic exposure values to capture a plurality of photographed images. A display unit may display the plurality of photographed images.

Abstract: A system for capturing and reproducing an image may include a digital image processor which captures an image, acquires characteristics of a reproducing apparatus, processes the captured image according to the characteristics of the reproducing apparatus to obtain an optimal image, and transmits the optimal image to the reproducing apparatus. The system may also include the reproducing apparatus which may then display the optimal image and a connection unit which transmits and receives data including the characteristics of the reproducing apparatus and the optimal image between the digital image processor and the reproducing apparatus.

Abstract: An imaging device includes a photographing device configured to photograph an object and generate an image signal, a gain storage register configured to store a gain determined for the photographing device, a gain adjustment unit configured to adjust the image signal using the gain, and a noise reduction unit configured to reduce noise of the image signal using a noise filter selected based on the gain.

Abstract: An auto-focusing method and a digital image processing apparatus using the same are disclosed. The auto-focusing method includes: setting a reference noise level if an illuminance of a photographing area is larger than a predetermined reference value, and setting a variable noise level that varies according to the illuminance of photographing area if the illuminance of photographing area is smaller than or equal to the predetermined reference value; calculating a focus value of each position of the focus lens while driving the focus lens within the predetermined lens-driving range in the unit of a step and selecting a maximum focus value of the predetermined lens-driving range among the calculated focus values, wherein in the calculating of the focus value, the noise level is subtracted from a pixel data that is larger than the noise level and the result of subtracting is used as the pixel data to calculate the focus value.

Abstract: Provided is a method of controlling a digital image processing apparatus for detecting a face from continuously input images, the method comprising operations (a) to (c). In (a), if a face is detected, image information of a body area is stored. In (b), if the face is not detected, a body having the image information stored in (a) is detected. In (c), if a current body is detected after a previous body was detected in (b), an image characteristic of the previously detected body is compared to an image characteristic of the currently detected body, and a movement state of the face is determined according to the comparison result.

Abstract: An auto-focusing method and a digital image processing apparatus using the same are disclosed. The auto-focusing method includes: setting a reference noise level if an illuminance of a photographing area is larger than a predetermined reference value, and setting a variable noise level that varies according to the illuminance of photographing area if the illuminance of photographing area is smaller than or equal to the predetermined reference value; calculating a focus value of each position of the focus lens while driving the focus lens within the predetermined lens-driving range in the unit of a step and selecting a maximum focus value of the predetermined lens-driving range among the calculated focus values, wherein in the calculating of the focus value, the noise level is subtracted from a pixel data that is larger than the noise level and the result of subtracting is used as the pixel data to calculate the focus value.