Abstract

In working with high resolution (eg. 3000x3000 pixels) digital images, hard copy is often a difficult step. In this laboratory, we use a film recorder which writes a high resolution image raster directly onto Polaroid instant color print film. Since our digital images often represent computed responses from a psychophysical color model, we are concerned that the color in the print be controlled as precisely as possible. This concern has led to the development of a special purpose color computer which resides in the film recorder and transforms the input image pixel values into those output exposure control values necessary to attain the desired color on film. This color transformation is done on the fly without slowing down the printing of the image.

© 1987 Optical Society of America