The raw image recorded on magnetic tape must be fed into the computer to undergo a series of refinements. "Noise" (interference) must be filtered out and the image clarified before it can become the satellite image that the layman gets to see.
錄在磁帶上的原始影像，輸入電腦後，還要經過一連串的修飾，包括去除畫面上的雜訊，以及影像的校正等，才能製成我們一般看到的衛星影像。