Abstract: A display method and a display device using the same is disclosed. In the display method, an image is received. The image has an indicative object and a display background that surrounds the indicative object. Then, the original color of the indicative object is changed into a first color and the image that has the indicative object with the first color is displayed based on the average hue of a part of the display background. The part of the display background surrounds the indicative object. The average hue corresponds to a second color. The first color and the second color are complementary colors.

Abstract: A display method and a display device using the same is disclosed. In the display method, an image is received. The image has an indicative object and a display background that surrounds the indicative object. Then, the original color of the indicative object is changed into a first color and the image that has the indicative object with the first color is displayed based on the average hue of a part of the display background. The part of the display background surrounds the indicative object. The average hue corresponds to a second color. The first color and the second color are complementary colors.

Abstract: An image capturing device includes a capturing module, a numerical transform module, a brightness measuring module, and a processing module. The capturing module includes a lens unit and an image sensor. The lens unit forms an optical image onto the image sensor. The image sensor includes an effective pixel region and an optical black pixel region. The effective pixel region is configured for generating electrical image signals roughly corresponding to the optical image. The optical black pixel region is configured for generating dark currents corresponding to the electrical image signals. The numerical transform module is configured for transforming the dark currents into a first brightness value matrix. The brightness measuring module is configured for measuring a brightness component of the electrical image signals as a second brightness value matrix.

Abstract: An image processing device includes an initialization module, an optical black detection module, a calculation module, an image capturing module, a gain-value acquiring module, a gain adjusting module, and a pixel value adjusting module. The calculation module is configured for calculating the gain-coefficient. The image capturing module is configured for capturing an image of an object and acquiring the pixel value of each pixel of the image. The gain-value acquiring module is configured for acquiring a gain value according to the pixel values of the image. The gain adjusting module is configured for multiplying the gain value by the gain-coefficient to obtain an adjusted-gain value. The pixel value adjusting module is configured for multiplying the pixel values by the adjusted-gain value to adjust the pixel values.

Abstract: An image capturing device includes a capturing module, a numerical transform module, a brightness measuring module, and a processing module. The capturing module includes a lens unit and an image sensor. The lens unit forms an optical image onto the image sensor. The image sensor includes an effective pixel region and an optical black pixel region. The effective pixel region is configured for generating electrical image signals roughly corresponding to the optical image. The optical black pixel region is configured for generating dark currents corresponding to the electrical image signals. The numerical transform module is configured for transforming the dark currents into a first brightness value matrix. The brightness measuring module is configured for measuring a brightness component of the electrical image signals as a second brightness value matrix.

Abstract: An image processing device includes an initialization module, an optical black detection module, a calculation module, an image capturing module, a gain-value acquiring module, a gain adjusting module, and a pixel value adjusting module. The calculation module is configured for calculating the gain-coefficient. The image capturing module is configured for capturing an image of an object and acquiring the pixel value of each pixel of the image. The gain-value acquiring module is configured for acquiring a gain value according to the pixel values of the image. The gain adjusting module is configured for multiplying the gain value by the gain-coefficient to obtain an adjusted-gain value. The pixel value adjusting module is configured for multiplying the pixel values by the adjusted-gain value to adjust the pixel values.

Abstract: A method of real-time auto focus includes: (a) judging whether a focus environment is changed by a focus environment judgment unit of a real-time auto focus system; (b) if the focus environment has been changed, figuring out a contrast value by a frame that is captured via a sensor of the real-time auto focus system; (c) judging whether the contrast value is larger than last contrast value by comparing the contrast value with last contrast value; (d) if the contrast value is larger than last contrast value, letting a lens move along one direction, and then if the contrast value is not larger than last contrast value, letting a lens move along the other direction; and (e) repeating the cycle of the step (b)-(d) until the total number of the cycle time reaches the predetermined total cycle time.