Abstract: An optimization system of real-time LCD white balance selection includes an RGB to YUV conversion unit, a white balance adjustment unit, and a YUV to RGB conversion unit. The RGB to YUV conversion unit receives an image signal and converts the image signal from RGB domain to YUV domain to generate a first YUV image signal. The white balance adjustment unit is connected to the RGB to YUV conversion unit for performing a white balance adjustment on the first YUV image signal and thus generating a second YUV image signal. The YUV to RGB conversion unit is connected to the white balance adjustment unit for converting the second YUV image signal from YUV domain to RGB domain.

Abstract: An optimization system of real-time LCD white balance selection includes an RGB to YUV conversion unit, a white balance adjustment unit, and a YUV to RGB conversion unit. The RGB to YUV conversion unit receives an image signal and converts the image signal from RGB domain to YUV domain to generate a first YUV image signal. The white balance adjustment unit is connected to the RGB to YUV conversion unit for performing a white balance adjustment on the first YUV image signal and thus generating a second YUV image signal. The YUV to RGB conversion unit is connected to the white balance adjustment unit for converting the second YUV image signal from YUV domain to RGB domain.

Abstract: In a method of skin tone optimization in a color gamut mapping system, an image signal is first transformed from a predetermined color domain to an HSV color domain for generating an HSV image signal. Next, a skin tone optimization is performed on the HSV image signal for generating an adjusted saturation gain. Then, a color enhancement is performed on the HSV image signal according to the adjusted saturation gain and a color shift signal so as to generate a color enhancement signal. Finally, the color enhancement signal is transformed from the HSV color domain to the predetermined color domain.

Abstract: In a method of skin tone optimization in a color gamut mapping system, an image signal is first transformed from a predetermined color domain to an HSV color domain for generating an HSV image signal. Next, a skin tone optimization is performed on the HSV image signal for generating an adjusted saturation gain. Then, a color enhancement is performed on the HSV image signal according to the adjusted saturation gain and a color shift signal so as to generate a color enhancement signal. Finally, the color enhancement signal is transformed from the HSV color domain to the predetermined color domain.

Abstract: A system for enhancing image sharpness includes a minimum unit, a maximum unit, a subtraction unit, a local mean unit, a sharpness calculation unit and a sharpness processing unit. The minimum unit receives pixels in a local area of an image to output a minimum luma value. The maximum unit receives the pixels in the local area of the image to output a maximum luma value. The subtraction unit subtracts the minimum luma value from the maximum luma value to generate a difference value. The local mean unit calculates an average of the luma values in the local area to generate a local mean value. The sharpness calculation unit calculates a sharpness factor for a pixel based on the difference value and an adjustable coefficient. The sharpness processing unit performs a sharpness processing on the pixel according to the sharpness factor and the local mean value.

Abstract: A system for enhancing image sharpness includes a minimum unit, a maximum unit, a subtraction unit, a local mean unit, a sharpness calculation unit and a sharpness processing unit. The minimum unit receives pixels in a local area of an image to output a minimum luma value. The maximum unit receives the pixels in the local area of the image to output a maximum luma value. The subtraction unit subtracts the minimum luma value from the maximum luma value to generate a difference value. The local mean unit calculates an average of the luma values in the local area to generate a local mean value. The sharpness calculation unit calculates a sharpness factor for a pixel based on the difference value and an adjustable coefficient. The sharpness processing unit performs a sharpness processing on the pixel according to the sharpness factor and the local mean value.

Abstract: A strap latch includes a female buckle, and a male buckle detachably snapped onto the female buckle. Each of the male buckle and the female buckle is provided with a clamping member for clamping a fabric strap. The clamping member has two clamping pieces each having an inner face formed with a plurality of protruding engaging blocks engaged with the respective fabric strap. Thus, each of the engaging blocks has a planar contact with the respective fabric strap to increase the contact area between each of the engaging blocks and the respective fabric strap, so that each of the engaging blocks is engaged with the respective fabric strap closely.