| 摘要 |
In an endoscopic system, whenever signals obtained by a CCD camera are recorded through a decoder in an R (red) image memory, a G (green) image memory and a B (blue) image memory which constitute frame memories, data of R, G and B images are computed and converted by a converter into data of hue, saturation and intensity images which are stored in a hue image memory, a saturation image memory and an intensity image memory respectively. A masking and color-modulating unit carries out, based on modulating function data corresponding to a fluorescent contrast medium to be used, a coloring process on hue image data stored in the hue image memory so that a morbid portion may be distinguished by color on a display unit, or executes a color enhancement process by masking to leave a specific color and to make other colors achromatic. The hue image data which have been subjected to the coloring process and stored in the hue image memory, the saturation image data in the saturation image memory and the intensity image data in the intensity image memory are converted into R, G and B image data by the converter. The R, G and B image data are again stored in the R, G and B image memories and then displayed.
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