Abstract: An image detecting module. The image detecting module comprises a base, a seat movably disposed on the base, an image detecting unit disposed on the seat, a first guide member by which the seat is joined to the base, moving relative to the base in a first direction, a first coil disposed on either the base or the seat, a first magnet disposed on either the base or the seat and opposite to the first coil, and a first Hall element disposed on either the base or the seat and adjacent to the first coil. A magnetic force is generated between the first coil and the first magnet by providing a voltage to the first coil, thereby moving the seat in the first direction along the first guide element.

Abstract: An image detecting module. The image detecting module comprises a base, a seat movably disposed on the base, an image detecting unit disposed on the seat, a first guide member by which the seat is joined to the base, moving relative to the base in a first direction, a first coil disposed on either the base or the seat, a first magnet disposed on either the base or the seat and opposite to the first coil, and a first Hall element disposed on either the base or the seat and adjacent to the first coil. A magnetic force is generated between the first coil and the first magnet by providing a voltage to the first coil, thereby moving the seat in the first direction along the first guide element.

Abstract: An image contrast evaluation method is disclosed. First, focusing is performed based on the contrast value of an image rendered by a lens on optical sensors, wherein the calculation of the contrast value comprises: selecting an area of the image, calculating the absolute value of brightness difference between each neighboring pixel, and selecting a specific value there from as the contrast value of the image based on a distribution of the calculated absolute values of the brightness differences.

Abstract: An autofocusing method is implemented in an image capture device comprising a lens and a sensor module. The relative positions of lens and the sensor module are adjusted for autofocusing based on a factor. First, the relative positions of the lens and the sensor module are adjusted based on a first unit of the factor to determine a plurality of states of the lens and the sensor module, where the lens renders clearer images on the sensor module. The states are utilized to estimate a best state achievable by focusing based on a second unit of the factor, where the lens renders a clearest image on the sensor module. The second unit is finer than the first unit. The lens or the sensor module is driven to the best state.

Abstract: A method of image processing for heat accumulation of a thermal printer refreshes grayscale output of printing pixels that lie in correction regions with smear phenomena caused by heat accumulation of a thermal printer. The actual grayscale output of the printing pixels of the correction regions is lower than the original grayscale output and the scale of correction of the grayscale output is gradually decreased to zero along the direction of printing. The method substantially eliminates the smear phenomena caused by heat accumulation and allows a thermal printer to provide better output.

Abstract: An image sensing module. A movable frame is disposed in and moves with respect to a fixed base. A support base is disposed in the movable frame and moves with respect to the fixed base. An image sensing unit is fixed to the support base. A first guiding mechanism combines the movable frame with the fixed base and moves with respect to the fixed base along a first direction, moving the support base with respect to the fixed base along the first direction. A first coil is disposed on the support base. A first magnet is disposed on the fixed base and opposes the first coil. A first Hall member is disposed on the support base and beside the first coil. When the first coil is energized by a voltage, a magnetic force is generated by the first coil and first magnet, moving the movable frame along the first direction.

Abstract: An image detecting module. The image detecting module comprises a base, a seat movably disposed on the base, an image detecting unit disposed on the seat, a first guide member by which the seat is joined to the base, moving relative to the base in a first direction, a first coil disposed on either the base or the seat, a first magnet disposed on either the base or the seat and opposite to the first coil, and a first Hall element disposed on either the base or the seat and adjacent to the first coil. A magnetic force is generated between the first coil and the first magnet by providing a voltage to the first coil, thereby moving the seat in the first direction along the first guide element.

Abstract: A color management method transforms color coordinates between devices that use different color spaces by finding a plurality of weightings in an intermediate color space. The method can transform color coordinates of a pixel from the color space of a display device to the color space of a printing device, or from the color space of the printing device to the color space of the display device. The color management method provides cross-media color matching so that a pixel displayed by different devices has the same color characteristics.

Abstract: A method for calculating and adjusting the color temperature of an image includes calculating an average color temperature and adjusting the chromaticity of each pixel of the image according to the average color temperature. The adjustment may be linear across all pixels or scaled according to the chromaticity of each pixel. The adjustment will not cause pixels to cross chromaticity axis boundaries, thus preserving original colors.