Patent ID: 7957561

Claim:
An apparatus for measuring quality of an image received via a communication network, comprising: an interface unit for receiving an image, including a start synchronization image, configured to provide notification of a start of a quality test, and a test image, actually subjected to a quality test, via a communication network; a codec unit for decoding the received image, input through the interface unit, into a color signal; a test image detection unit for detecting any one value of brightness, saturation and hue information of the color signal input from the codec unit, calculating an average value for each frame, and detecting the test image from the received image based on the calculated average value; and a Mean Opinion Score (MOS) measurement unit for synchronizing the test image, detected by the test image detection unit, with a corresponding reference image, comparing quality of the test image with quality of the reference image in a synchronized state, calculating an MOS value based on results of the comparison, and outputting the MOS value.