Mark Washburn

Abstract

This study will present a simple, quick, and inexpensive way to producing sinusoidal test targets, which can then be used in measuring the image quality of a photographic system by way of a coherent system. The sinusoidal test targets will be produced from a series of bar targets using Fourier Optics, and a comparison study will be made between measuring MTF with a laser and a microdensitometer. A defocused target series will also be produced to note the change in MTF of the photographic system. The results indicate that sinusoidal test targets can be made quickly and inexpensively, and then can be used to provide meaningful data in evaluating a system. It was found that the laser method used in measuring the MTF of a photographic system was found to be superior to the microdensitometer in convenience, in speed, and in noise reduction. However, the microdensitometer can perform tests which the laser cannot, which still makes the microdensitometer an essential and invaluable tool in measuring the image quality of a system.

Library of Congress Subject Headings

Images, Photographic; Photographic optics

Publication Date

5-1-1979

Document Type

Thesis

Department, Program, or Center

School of Photographic Arts and Sciences (CIAS)

Advisor

Not Listed

Comments

Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works. Physical copy available through RIT's The Wallace Library at: TR222.W37

Campus

RIT – Main Campus

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