The use of scanners to provide digital image files is rapidly growing. Currently there is no standardized method to determine the dynamic range of scanners. Therefore the data reported in technical specifications can be determined using different methods. An ISO 21550 Standard to measure the ability of scanners to reproduce tones especially in the dark areas of the original is currently under d...

Using an incorrect lens, or camera shake can cause the perspective of photographs to be tilted or skewed. The perspective may be distorted, and is more evident in photographs containing continuous vertical lines or geometric shapes. This paper deals with perspective distortion together with skew distortion rectification of a document image file to make its content more easily comprehendible for...

This work suggests an architecture that uses Java Native Interface to improve the performance of Java Domain Transformation applications. It also shows how to make possible the independency between image formats and each domain transformation.