MICRODENSITOMETER STUDY OF EFFECTS OF PROCESSING

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04770A002400020025-8
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 28, 2016
• Document Release Date: April 13, 2005
• Sequence Number: 25
• Publication Date: January 22, 1965
• Content Type: PERRPT

Approved Felease 2003MECIA-RDP78B047A002400020025-8
MONTHLY REPORT
25X1
PAR 211
22 Jan 65
SUBJECT: Microdensitometer Study of Effects of Processing
TASK/PROBLEM
1. Collect and study microdensitometric data from mission materials
in an attempt to determine the effect of film emulsions, processing, and
printing on the characteristics of image edges. Also, attempt to determine
true location of image edges for mensuration purposes.
DISCUSSION
2. Collection of test data on acutance and granularity was completed
for Type 4400, 4401 and 4404 films processed under Trenton machine conditions
and under the special processing conditions chosen for this part of the
project. There was a total of seven processing conditions in the following
three categories:
a. The three established levels of processing development on
the Trenton (Primary, Intermediate and Full).
b. Two test conditions with different specially formulated
developers for high sharpness.
c. Two test conditions with different specially formulated
developers for low graininess.
Data are now under evaluation for summarizing in the Third Quarter Report.
3. Measurement of low contrast resolving power and modulation transfer
function was continued. Measurements on Type 4400, 4401 and 4404 films
processed under the above conditions were made as a part of this effort.
Added cost to do the necessary work in this area has been estimated and
discussed in a Supplementary Proposal (No. 3) which was initiated during
the period.
4. Seven proposed briefing aid designs were completed for submission
to the customer.
Declass Review by NGA.
GROUP 1
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ing and declassification
 Approved Felease 2003/D5Tl1ZECIA-RDP78BO4*AO02400020025-8
PAR 211
22 Jan 65
PLANNED ACTIVITIES
5. Continue work on mensurational aspects of the PAR.
6. Complete the collection of data on low contrast resolving power and
modulation transfer function measurements for aerial acquisition films.
7. Begin image quality studies of Type 8430 and 5427 duplicating film
processed in the Dalton machine.
8. Make aerial scene simulations at scales of 1:100,000 and 1:300,0000
9. Include large scale (1:23,000) simulation and medium contrast re-
solving power measurement upon approval of Supplements No. 1 and No. 2 sub-
mitted to cover these efforts.
10. Complete preparation and submit Supplement No. 3, Addition of Low
Contrast Resolving Power and Modulation Transfer Function as Image Quality
Measurements.
11. Respond to customer guidance on proposed briefing aids.
GROUP 1
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ing and declassification