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Image calibration of laser digitizers, printers, and gray-scale displays.
Siegel EL, Templeton AW, Cook LT, Eckard DA, Harrison LA, Dwyer SJ 3rd.
Department of Diagnostic Radiology, Bell Memorial Hospital, University of Kansas Medical Center, Kansas City 66103.
Radiographics. 1992 Mar;12(2):329-35
Laser film digitizers, interactive gray-scale monitors, and laser film printers are necessary to transmit digital image information. These devices must be standardized so that hard- and soft-copy images are as similar as possible. Standardization of appropriate calibration procedures is necessary to attain this goal. Radiographs are converted into digital data representations by a laser film digitizer. These representations (and those obtained with other modalities) are transferred to a laser film printer or to an interactive monitor with gray-scale display. To obtain the best gray-level fidelity, printer output optical densities should be identical to those of the input film. Laser printers should be calibrated regularly to ensure uniform results. A gray-scale controller functions as an adjunct to the host computer and can automate the calibration process. Gray-scale controller functions may someday be incorporated into an accelerator or array-processor board.
Posted via PubMed for educational and discussion purposes only.
Link to PubMed Reference
Department of Diagnostic Radiology, Bell Memorial Hospital, University of Kansas Medical Center, Kansas City 66103.
Radiographics. 1992 Mar;12(2):329-35
Laser film digitizers, interactive gray-scale monitors, and laser film printers are necessary to transmit digital image information. These devices must be standardized so that hard- and soft-copy images are as similar as possible. Standardization of appropriate calibration procedures is necessary to attain this goal. Radiographs are converted into digital data representations by a laser film digitizer. These representations (and those obtained with other modalities) are transferred to a laser film printer or to an interactive monitor with gray-scale display. To obtain the best gray-level fidelity, printer output optical densities should be identical to those of the input film. Laser printers should be calibrated regularly to ensure uniform results. A gray-scale controller functions as an adjunct to the host computer and can automate the calibration process. Gray-scale controller functions may someday be incorporated into an accelerator or array-processor board.
Posted via PubMed for educational and discussion purposes only.
Link to PubMed Reference
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