1. A visual information processing apparatus comprising: first means for successively producing digitized two-dimensional image data in a raster-scanning manner; second means for generating a coordinate (X, Y) of a scanning point of said two-dimensional image; third means which is provided with a plurality of microprograms and which executes a microprogram corresponding to a value of said coordinate Y, thereby to process the image data which is produced by said first means; and fourth means for starting said third means when a value of said coordinate X is in agreement with a particular value X.sub.l ; wherein said image data is processed for every particular image region.