Abstract: A color calibration method and device used for a displaying device, which is used to first calculate the RGB signal level value of the RGB colors of the first color signal, and next obtain the color area corresponding to the RGB signal level value through calculation and search, and then obtain the corresponding gamma value by utilizing the color area, and subsequently, calibrate the first color signal by making use of the gamma value to generate a second color signal, thus realizing the process of calibrating the first color signal. Through the application of the method and device, the automatic calibration of the displaying device color signal can be achieved at low costs, hereby realizing the optimal image quality.

Abstract: A computer executable image quality detection system is provided, which comprises: a scaling symmetry testing unit, for testing the image scaling symmetry of an image signal; a luminance/chroma testing unit, for testing the separation of luminance and chroma of the image signal; a de-interlace testing unit, for testing the dynamic movement of the image signal; a color bar testing unit, for testing the color purity distinction of the image signal; a luminance compensation testing unit, for testing the Gamma compensation of the image signal; and a high/low frequency testing unit, for testing the high frequency and low frequency signal presentation of the image signal. By simultaneously executing the respective testing units, the producers' procedure and time for developing and testing are simplified and shortened.