The invention discloses a stable
image processing system comprising a
image sensor, an
image processing circuit connected with the
image sensor, a time base generation circuit connected with the
image processing circuit, a
signal filtering circuit simultaneously connected with the image
processing circuit and the time base generation circuit and a bias amplifying circuit connected with the time base generation circuit. The stable image
processing system is characterized by further comprising a phase-shift circuit connected with the bias amplifying circuit; the phase-shift circuit comprises a phase-shift
chip U2, a triodeVT4, a triodeVT5, a
resistor R14, a
capacitor C3 and the like; one end of the
resistor R14 is connected with a VCC+ pin of the phase-shift
chip U2, and the other end of the
resistor R14 is connected with an IN1 pin of the phase-shift
chip U2; a
cathode of the
capacitor C3 is connected with the IN1 pin of the phase-shift chip U2 through a resistor R16, and an
anode of the
capacitor C3 is connected with an IN2 pin of the phase-shift chip U2. Compared with the prior art, the stable image
processing system is provided with the phase-shift circuit to ensure processing effect of the processing system as the
voltage is unstable, thus
image signal distortion after processing never occurs.