Abstract: An image processing circuit, image processing method, and camera device for effectively removing color changes included in an input image and improving the quality of the output image signal, wherein an image signal picked up by an image pickup device is input to a digital signal processing circuit 104 which separates it into RGB color signals and a luminance signal. The integrated values of the separated color signals are monitored for each field and when the integrated value of B becomes smaller than a judgment threshold and again starts to become larger, it is judged if a color rolling phenomenon has occurred. Further, when it is judged that there is a color rolling phenomenon, the color rolling suppression mode is shifted to and the auto white balancing (AWB) is speeded up and control is performed to suppress the gain of the Ye direction color signal. Further, when it is judged that there is no color rolling phenomenon, the auto white balancing AWB) of the usual mode is performed.

Abstract: In white balance adjustment adopting a feedback control technique, after white balance has been established at a certain color temperature, a lead-in limiting frame may be shifted following the establishment of the white balance, causing an incorrect operation to be carried out for a next change in color temperature.

Abstract: A color signal processing circuit comprising an amplification circuit having three gains for amplifying a color signal of red, green and blue color signals and amplifying the red, green and blue color signals, the red, green and blue color signals being generated from an image signal taken by a solid-state imaging device by a color separation; a pull-in determination circuit for judging whether or not the color signal in a two dimensional coordinates for defining the color is positioned within a first pull-in limit region showing a color adjustment region and a second pull-in limit region defined in the first pull-in limit region and contained an origin of the two dimensional coordinates, and determinating the pull-in of a color shown by the color signal into a white color defined as the origin of the two dimensional coordinates; and a gain adjustment circuit for adjusting the gain of the amplification circuit, to thereby pull-in the color shown by the color signal determined the pull-in into the origin of th