Abstract: Disclosed is an image processing apparatus for processing a color image signal obtained by converting color image information on a document into an electric signal. In the apparatus, a color ghost is corrected from the color of the color image signal in accordance with a predetermined correction manner. When a marked region on the document with a coloring member different from the color of the document is detected and an image process is performed in relation to the marked region, the predetermined correction manner is changed.

Abstract: The endoscope signal processing apparatus is provided with a first signal processing device processing the signal for a field sequential type imaging device and a second signal processing device processing the signal for a synchronous type imaging device. One signal processing device has a circuit partly used in common with the other signal processing device. Both signal processing device have a common video signal output end from which video signals from both signal processing devices are output. This apparatus is further provided with a discriminating device discriminating the imaging system of the endoscope to be connected and an output switching device whereby the video signal transmitted through the video signal processing device corresponding to the imaging system discriminated by this discriminating device is led selectively to the common video signal output.

Abstract: A picture output device of the present invention receives inputs in the form of a first picture signal with n horizontal scanning lines within the vertical scanning period or a second picture signal with m (m>n) horizontal scanning lines within the vertical scanning period, wherein the first picture signal after received is converted in the number of lines within the vertical scanning period to m, and a picture based on either one of the thus-converted first picture signal and the second picture signal is displayed.