KDY analyzed the results using its ImageXpert software tool, which automates the analysis of image quality at the sub-pixel level. The test scans were delivered to KDY in RGB TIFF files named with a special code number to ensure product's anonymity. The Resolution test comprises of closely spaced horizontal and vertical lines that must not be broken or touching each other. The results indicate how many line pairs can be resolved per millimeter. The Color Registration test measures the accuracy of the alignment of the CCD array's red, green, and blue planes.
Proper alignment is necessary to produce clean edges between colors.
The results, presented in pixels, describe the maximum distance between any two misaligned planes. The Optical Character Recognition test was performed to evaluate each scanner's bundled OCR software. We scanned a simple one-page press release with a mix of various fonts at 300dpi and converted to a Word document by running the page through the OCR software. ZDNet and ZDNet logo are registered trademarks of ZD Inc. Content originally published in Ziff Davis Media publications is the copyrighted property of Ziff Davis Media. Ziff Davis Media.