
237
PART 4
IMAGE IMPROVEMENT
The use of digital processing techniques for image improvement has received much
interest with the publicity given to applications in space imagery and medical
research. Other applications include image improvement for photographic surveys
and industrial radiographic analysis.
Image improvement is a term coined to denote three types of image manipulation
processes: image enhancement, image restoration and geometrical image modi-
fication. Image enhancement entails operations that improve the appearance to a
human viewer, or operations to convert an image to a format better suited to
machine processing. Image restoration has ...