Electronic endoscope apparatus

Abstract

Abstract PURPOSE:To automatically prevent the standstill or hard copy of a color shift image when a monitor image is allowed to stand still or converted to hard copy by inputting two color images among color images converted according to a simultaneous system and judging an animation or a stationary image on the basis of those color images. CONSTITUTION:A recording control circuit 50 is constituted of contour signal generation circuits 51, 52, a comparing circuit 53, a recording preventing pulse generating circuit 54 and an AND circuit 55. The contour signal generation circuit 51 receives the application of a color image signal (analogue signal) of red (R) among color image signals converted according to simultaneous system and detects the contour part of the image shown by said color image signal to output a contour signal (pulse signal) to the comparing circuit 53. At the same time, the contour signal generation circuit 52 receives the application of a color image signal of green (G) and detects the contour part of the image shown by said signal to output a contour signal to the comparing circuit 53. The comparing circuit 53 compares the above mentioned two input signals and, when a taken image is an animation, the output of the recording order signal thereof is prevented to make it possible to always monitor a stationary image free from color shift.

Inventors

• 👤 Shigeru Nishimura
• 👤 茂 西村

Bibliographic Details