Preview
Title - Alternative
Computer-Corrected Mariner 6 Near-Encounter Image
Keywords
Aeronautics, John F. Kennedy Space Center, Mariner 6, Mars, NASA
Photo Description
Example of preliminary computer enhancement of Mariner 6 near-encounter picture 18 of Mars. A portion of this frame, as originally recorded, is shown at the upper left. Apparent in it is a faint "basket weave" pattern due to electronic "pickup" in the sensitive preamplifier of the camera system, as well as a general "softness" due to the limited resolution of the vidicon image tube. Computer analysis reveals the "pickup" pattern shown at the upper right. When the appropriate numerical value, determined from this pattern, is subtracted from each of the 658,240 elements of the picture, the result is as shown at the lower left. Two further computer programs may then be used to compensate for the smearing due to the vidicon tube, with the result shown at the lower right. The final processing procedure will involve more refined versions of these steps, as well as programs designed to remove the numerous small blemishes, correct for electronic and optical distortions of the image, and correct for the photometric sensitivity of each picture element of the vidicon tube. The computer will also be used to combine the digital and analog video data into a single, photometrically accurate picture.
Publication Date
9-4-1969
Format
image/jpeg
Number of Images
2
Side of Image
Front of Image
Publisher
National Aeronautics and Space Administration (NASA)
Original Size
8" x 10"
Identifier
DP0057521-004a
NASA Photo Number
111-KSC-69P-730
Photo Credit
National Aeronautics and Space Administration
Location
John C. Hitt Library
Department
Special Collections & University Archives
Call Number
SC 010
Digital Production Specifications
Digitized by the University of Central Florida Libraries, Digital Initiatives Unit. Jpeg images were derived from no less than 600 dpi tiffs scanned on a Copibook scanner.
Use and Reproduction
This image is posted publicly for non-profit educational uses, excluding printed publication. For permission to reproduce images and/or for copyright information, contact Special Collections & University Archives, University of Central Florida Libraries, Orlando, FL 32816, (407) 823-2576.
Additional Rights Statement
This photograph is a government publication – not subject to copyright.
Recommended Citation
"Mariner 6 Computer Enhancement of Mars Image" (1969). Official NASA Photographs, Vol. 2, September 4, 1969 - October 2, 1973. 5.
https://stars.library.ucf.edu/nasa-photographs-volume-2/5
Back of Image
Keywords
Aeronautics, John F. Kennedy Space Center, Mariner 6, Mars, NASA