Being the graphics data interpolation method of executing the interpolation processing of the graphics data graphics data interpolation method, making use of the computer which possesses

摘要

PROBLEM TO BE SOLVED: To realize a high speed processing without the deterioration of picture quality by realizing the correspondence of an interpolation processing in accordance with the characteristics of plural constitution elements for expressing the color tones and the brightness of the respective picture elements, executing the interpolation processing with an optimum combination and outputting picture data. SOLUTION: The output data of an image pickup element 22 is amplified by an AGC circuit 23 and it is digitally converted by an A/D converter 24. At that time, data is that from which teeth are dropped by an RGB filter covering the image pickup element 22 and therefore an inter-output characteristic emphasis is canceled in a picture processing part. Light reception sensitivity is made flat and the bit map system picture data of three primary color reference is generated. Since JPEG system picture data is required at last, a data system for expressing again data obtained by gradation-expressing it by brightness for the respective colors RBG with luminance and a color difference is converted in a controller 10 for reducing the encoding burden. At that time, the colors themselves do not changed but only a coordinate system is changed. The picture is enlarged for reducing deterioration in JPEG encoding after conversion and JPEG encoding is executed.