Image testing system and image extraction card thereof

The invention provides an image testing system. The image testing system comprises a prober and an image extraction card, wherein the prober comprises a carrying platform used for placing an object tobe tested; the image extraction card is used for acquiring image data comprising a frequency signal and a data signal, and comprises a data conversion unit, a frequency conversion unit, a logic processing unit and a first delay unit; and the first delay unit is used for adjusting a time sequence of the frequency signal, so that the time sequence of the frequency signal corresponds to a time sequence of the data signal. 本公开提供一种影像测试系统，包含：针测机及影像提取卡。针测机包含用以放置待测对象的载台；影像提取卡用以取得包含频率信号及数据信号的影像数据，并包含数据转换单元、频率转换单元、逻辑处理单元及第一延迟单元。其中，第一延迟单元用以调整频率信号的时序，使频率信号的时序与数据信号的时序相对应。