Method of and apparatus for tint generation and color separation over closed regioons of an image including generation of run-length color data

摘要

An original image in the form of a negative is scanned and converted into pixel data. The resultant data is compared with a predetermined threshold level value to discriminate pixels constituting the contour lines of the scanned image which are thickened to connect line gaps and form closed regions with corresponding first run-length data generated. Colors corresponding to desired tints are designated for each region and corresponding code data is associated with the run-length data to form second run-length data. The color code is converted into halftone-dot percentages and the photosensitive material is exposed to one or more color separations forming the desired tint to produce a tinted recorded image.